Subjects -> BUILDING AND CONSTRUCTION (Total: 139 journals)
    - BUILDING AND CONSTRUCTION (131 journals)
    - CARPENTRY AND WOODWORK (8 journals)

BUILDING AND CONSTRUCTION (131 journals)                     

Showing 1 - 35 of 35 Journals sorted alphabetically
A+BE : Architecture and the Built Environment     Open Access   (Followers: 19)
Academia : Architecture and Construction     Open Access   (Followers: 2)
ACI Structural Journal     Full-text available via subscription   (Followers: 20)
Advances in Building Education     Open Access   (Followers: 4)
Advances in Building Energy Research     Hybrid Journal   (Followers: 11)
Anales de Edificación     Open Access  
Asian Journal of Civil Engineering     Hybrid Journal   (Followers: 2)
Australasian Journal of Construction Economics and Building     Open Access   (Followers: 8)
Baltic Journal of Real Estate Economics and Construction Management     Open Access   (Followers: 5)
Bautechnik     Hybrid Journal   (Followers: 1)
Beton- und Stahlbetonbau     Hybrid Journal   (Followers: 1)
Building & Management     Open Access   (Followers: 2)
Building Acoustics     Hybrid Journal   (Followers: 4)
Building Services Engineering Research & Technology     Hybrid Journal   (Followers: 3)
Buildings     Open Access   (Followers: 7)
BUILT : International Journal of Building, Urban, Interior and Landscape Technology     Open Access   (Followers: 2)
Built Environment Inquiry Journal     Open Access  
Built Environment Project and Asset Management     Hybrid Journal   (Followers: 13)
Built-Environment Sri Lanka     Full-text available via subscription  
Case Studies in Construction Materials     Open Access   (Followers: 8)
Cement     Open Access   (Followers: 1)
Cement and Concrete Composites     Hybrid Journal   (Followers: 17)
Cement and Concrete Research     Hybrid Journal   (Followers: 17)
Challenge Journal of Concrete Research Letters     Open Access   (Followers: 4)
Challenge Journal of Concrete Research Letters     Open Access   (Followers: 3)
Change Over Time     Full-text available via subscription   (Followers: 3)
City, Culture and Society     Hybrid Journal   (Followers: 23)
Cityscape     Full-text available via subscription   (Followers: 10)
Clay Technology     Full-text available via subscription  
Concreto y cemento. Investigación y desarrollo     Open Access  
Construction Economics and Building     Open Access   (Followers: 4)
Construction Engineering     Open Access   (Followers: 9)
Construction Management and Economics     Hybrid Journal   (Followers: 24)
Construction Research and Innovation     Hybrid Journal   (Followers: 4)
Construction Robotics     Hybrid Journal   (Followers: 4)
Corporate Real Estate Journal     Full-text available via subscription   (Followers: 4)
Dams and Reservoirs     Hybrid Journal   (Followers: 3)
Developments in the Built Environment     Open Access  
Energy and Built Environment     Open Access  
Engineering Project Organization Journal     Hybrid Journal   (Followers: 6)
Engineering, Construction and Architectural Management     Hybrid Journal   (Followers: 11)
Environment and Urbanization Asia     Hybrid Journal   (Followers: 2)
Facilities     Hybrid Journal   (Followers: 4)
Frontiers in Built Environment     Open Access   (Followers: 1)
FUTY Journal of the Environment     Full-text available via subscription  
Glass Structures & Engineering     Hybrid Journal   (Followers: 1)
HBRC Journal     Open Access  
Housing and Society     Hybrid Journal   (Followers: 6)
HVAC&R Research     Hybrid Journal  
Indoor and Built Environment     Hybrid Journal   (Followers: 4)
Informes de la Construcción     Open Access  
Intelligent Buildings International     Hybrid Journal   (Followers: 2)
International Journal of Advanced Structural Engineering     Open Access   (Followers: 25)
International Journal of Air-Conditioning and Refrigeration     Hybrid Journal   (Followers: 12)
International Journal of Architectural Computing     Full-text available via subscription   (Followers: 5)
International Journal of Built Environment and Sustainability     Open Access   (Followers: 3)
International Journal of Concrete Structures and Materials     Open Access   (Followers: 9)
International Journal of Construction Engineering and Management     Open Access   (Followers: 9)
International Journal of Construction Management     Hybrid Journal   (Followers: 4)
International Journal of Disaster Resilience in the Built Environment     Hybrid Journal   (Followers: 4)
International Journal of Housing Markets and Analysis     Hybrid Journal   (Followers: 9)
International Journal of Masonry Research and Innovation     Hybrid Journal  
International Journal of Protective Structures     Hybrid Journal   (Followers: 4)
International Journal of River Basin Management     Hybrid Journal  
International Journal of Structural Stability and Dynamics     Hybrid Journal   (Followers: 7)
International Journal of Sustainable Building Technology and Urban Development     Hybrid Journal   (Followers: 11)
International Journal of Sustainable Construction Engineering and Technology     Open Access   (Followers: 7)
International Journal of Sustainable Real Estate and Construction Economics     Hybrid Journal   (Followers: 2)
International Journal of the Built Environment and Asset Management     Hybrid Journal   (Followers: 5)
International Journal of Ventilation     Full-text available via subscription  
Journal for Education in the Built Environment     Open Access   (Followers: 3)
Journal of Aging and Environment     Hybrid Journal   (Followers: 4)
Journal of Architecture, Planning and Construction Management     Open Access   (Followers: 11)
Journal of Asian Architecture and Building Engineering     Open Access  
Journal of Building Construction and Planning Research     Open Access   (Followers: 10)
Journal of Building Engineering     Hybrid Journal   (Followers: 4)
Journal of Building Materials and Structures     Open Access   (Followers: 2)
Journal of Building Pathology and Rehabilitation     Hybrid Journal  
Journal of Building Performance Simulation     Hybrid Journal   (Followers: 5)
Journal of Civil Engineering and Construction Technology     Open Access   (Followers: 14)
Journal of Civil Engineering and Management     Open Access   (Followers: 8)
Journal of Computational Acoustics     Hybrid Journal   (Followers: 5)
Journal of Computing in Civil Engineering     Full-text available via subscription   (Followers: 21)
Journal of Construction Business and Management     Open Access   (Followers: 2)
Journal of Construction Engineering     Open Access   (Followers: 10)
Journal of Construction Engineering, Technology & Management     Full-text available via subscription   (Followers: 6)
Journal of Facilities Management     Hybrid Journal   (Followers: 3)
Journal of Green Building     Full-text available via subscription   (Followers: 10)
Journal of Legal Affairs and Dispute Resolution in Engineering and Construction     Full-text available via subscription   (Followers: 4)
Journal of Property, Planning and Environmental Law     Hybrid Journal   (Followers: 5)
Journal of Structural Fire Engineering     Full-text available via subscription   (Followers: 4)
Journal of Sustainable Cement-Based Materials     Hybrid Journal  
Journal of Sustainable Design and Applied Research in Innovative Engineering of the Built Environment     Open Access   (Followers: 2)
Journal of the South African Institution of Civil Engineering     Open Access   (Followers: 2)
Journal of Transport and Land Use     Open Access   (Followers: 26)
Journal of Urban Technology and Sustainability     Open Access  
Landscape History     Hybrid Journal   (Followers: 15)
Materiales de Construcción     Open Access   (Followers: 1)
Mauerwerk     Hybrid Journal  
Modular and Offsite Construction (MOC) Summit Proceedings |     Open Access  
Naval Engineers Journal     Hybrid Journal   (Followers: 1)
Nordic Concrete Research     Open Access  
Open Construction & Building Technology Journal     Open Access  
PARC Pesquisa em Arquitetura e Construção     Open Access  
Proceedings of the Institution of Civil Engineers - Forensic Engineering     Hybrid Journal  
Proceedings of the Institution of Civil Engineers - Urban Design and Planning     Hybrid Journal   (Followers: 11)
Revista ALCONPAT     Open Access  
Revista de la Construcción     Open Access  
Revista de Urbanismo     Open Access   (Followers: 2)
Revista Hábitat Sustenable     Open Access  
Revista Ingenieria de Construcción     Open Access   (Followers: 1)
Revista INVI     Open Access  
RILEM Technical Letters     Open Access  
Room One Thousand     Open Access  
Ruang-Space: Jurnal Lingkungan Binaan (Journal of The Built Environment)     Open Access  
Russian Journal of Construction Science and Technology     Open Access  
Science and Technology for the Built Environment     Hybrid Journal  
Smart and Sustainable Built Environment     Hybrid Journal   (Followers: 8)
Steel Construction - Design and Research     Hybrid Journal   (Followers: 3)
Stroitel’stvo : Nauka i Obrazovanie     Open Access  
Structural Concrete     Hybrid Journal   (Followers: 4)
Structural Mechanics of Engineering Constructions and Buildings     Open Access   (Followers: 2)
Sustainable Buildings     Open Access   (Followers: 3)
Sustainable Cities and Society     Hybrid Journal   (Followers: 22)
Technology|Architecture + Design     Hybrid Journal  
Terrain.org : A Journal of the Built & Natural Environments     Free   (Followers: 3)
The Historic Environment : Policy & Practice     Hybrid Journal   (Followers: 4)
The IES Journal Part A: Civil & Structural Engineering     Hybrid Journal   (Followers: 5)
The Journal of Integrated Security and Safety Science (JISSS)     Open Access   (Followers: 1)
Tidsskrift for boligforskning     Open Access  

           

Similar Journals
Journal Cover
Engineering, Construction and Architectural Management
Journal Prestige (SJR): 0.653
Citation Impact (citeScore): 2
Number of Followers: 11  
 
Hybrid Journal Hybrid journal   * Containing 7 Open Access Open Access article(s) in this issue *
ISSN (Print) 0969-9988 - ISSN (Online) 1365-232X
Published by Emerald Homepage  [360 journals]
  • H-BIM applications for vernacular architecture: a historic rural house
           case study in Bursa, Turkey

    • Free pre-print version: Loading...

      Authors: Mustafa Onur Savaşkan , Ozan Önder Özener
      Abstract: This article presents a case study on the Heritage Building Information Modeling (H-BIM) application in a historic village in Bursa, Turkey. The study addresses how tailor-made and highly structured H-BIM approaches can effectively be implemented in preservation applications for historic vernacular buildings in the rural architecture context. Using inexpensive digital photogrammetry techniques tightly combined with an object-oriented BIM ontology, parametric meta-modeling and object/system propagation methods, the study employed a holistic H-BIM approach for capturing the materiality, building object behaviors and indigenous construction principles of a characteristic vernacular house that were synthesized in a parametric H-BIM model. The followed stages, steps and connected methods were systematized and articulated in a prototypical H-BIM implementation framework. The study findings suggested that the developed parametric H-BIM approach can return effective results with the combined use of low-cost and practical digital photogrammetry with BIM methods. The flexibility and adaptability of the parametric H-BIM implementation framework facilitated the synthesis of a comprehensive H-BIM model and allowed an in-depth evaluation of local architectural heritage with its physical, spatial and environmental characteristics. The proposed H-BIM approach also provided significant documentation and system-specific assessment benefits for preserving the vernacular examples which are prone to extinction especially due to structural and systemic deterioration. The study proposes a feasible, practical and replicable H-BIM implementation methodology for vernacular preservation applications. The knowledge-embedded H-BIM approach, flows and techniques presented in this study provide a holistic and systematic H-BIM framework – with the integrated use of digital photogrammetry and parametric meta-modeling methods – that has the potential for the democratization of H-BIM applications in education and practice.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-13
      DOI: 10.1108/ECAM-01-2022-0017
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Eye-tracking study of public acceptance of 5G base stations in the
           context of the COVID-19 pandemic

    • Free pre-print version: Loading...

      Authors: Hanliang Fu , Hong Zhu , Pengdong Xue , Xi Hu , Xiaotong Guo , Bingsheng Liu
      Abstract: This study applied eye-tracking techniques and questionnaires within the framework of the Stimulus-Organism-Response Model (SOR) and Technology Acceptance Model (TAM), to investigate the influencing factors of the public acceptance of 5G base stations. This study used a combination of eye-tracking experiments and questionnaires. The data were analyzed using partial least squares structural equation modeling (PLS-SEM). (1) The Technology Acceptance Model (TAM) could be used to explain the effects on public acceptance of 5G base stations in the context of the COVID-19 pandemic. The public's perceived usefulness and ease of use of 5G base stations positively affects public acceptance of 5G base stations. (2) The public's perceived risk of 5G base stations has a negative influence on the public acceptance of 5G base stations. (3) The public's visual attention to the different valence information about 5G base stations positively impacts the perceived ease of use while having negative impacts on perceived risk. (4) Visual attention to various valence information of 5G base stations can indirectly influence public acceptance through the perceived risk. Applying the SOR and TAM to data obtained from eye-tracking experiments and questionnaires, this study analyzed the factors and mechanisms influencing public acceptance of 5G base stations in the context of the COVID-19 pandemic.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-13
      DOI: 10.1108/ECAM-10-2021-0946
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Risk allocation and benefit distribution of PPP projects for construction
           waste recycling: a case study of China

    • Free pre-print version: Loading...

      Authors: Zhenshuang Wang , Yanxin Zhou , Xiaohua Jin , Ning Zhao , Jianshu Sun
      Abstract: Public-private partnership (PPP) projects for construction waste recycling have become the main approach to construction waste treatment in China. Risk sharing and income distribution of PPP projects play a vital role in achieving project success. This paper is aimed at building a practical and effective risk sharing and income distribution model to achieve win–win situation among different stakeholders, thereby providing a systematic framework for governments to promote construction waste recycling. Stakeholders of construction waste recycling PPP projects were reclassified according to the stakeholder theory. Best-worst multi–criteria decision-making method and comprehensive fuzzy evaluation method (BWM–FCE) risk assessment model was constructed to optimize the risk assessment of core stakeholders in construction waste recycling PPP projects. Based on the proposed risk evaluation model for construction waste recycling PPP projects, the Shapley value income distribution model was modified in combination with capital investment, contribution and project participation to obtain a more equitable and reasonable income distribution system. The income distribution model showed that PPP Project Companies gained more transaction benefits, which proved that PPP Project Companies played an important role in the actual operation of PPP projects. The policy change risk, investment and financing risk and income risk were the most important risks and key factors for project success. Therefore, it is of great significance to strengthen the management of PPP Project Companies, and in the process of PPP implementation, the government should focus on preventing the risk of policy changes, investment and financing risks and income risks. The findings from this study have advanced the application methods of risk sharing and income distribution for PPP projects and further improved PPP project-related theories. It helps to promote and rationalize fairness in construction waste recycling PPP projects and to achieve mutual benefits and win–win situation in risk sharing. It has also provided a reference for resource management of construction waste and laid a solid foundation for long-term development of construction waste resources. PPP mode is an effective tool for construction waste recycling. How to allocate risks and distribute benefits has become the most important issue of waste recycling PPP projects, and also the key to project success. The originality of this study resides in its provision of a holistic approach of risk allocation and benefit distribution on construction waste PPP projects in China as a developing country. Accordingly, this study adds its value by promoting resource development of construction waste, extending an innovative risk allocation and benefit distribution method in PPP projects, and providing a valuable reference for policymakers and private investors who are planning to invest in PPP projects in China.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-11
      DOI: 10.1108/ECAM-10-2021-0855
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A bibliometric and content analysis of policy instruments on facilitating
           the development of prefabricated construction in China

    • Free pre-print version: Loading...

      Authors: Xiao-Long Gan , Kexin Xie , Hanqiu Liu , Raufdeen Rameezdeen , Tao Wen
      Abstract: The purpose of this paper is to analyse the policy instruments used by the China's Government on prefabricated construction (PC) development, with the aim to clarify the pattern and discover the focus of the policy instruments using the methods of bibliometric analysis and content analysis. Through a thorough screening by all researchers, 25 policies were identified from 1995 to 2021 were selected and analysed. The external attribute analysis clarified the issuing year, organisation, and the format of each policy. The content analysis was adopted firstly to analyse the policy instrument. An analysis framework including environmental instruments, supply instruments and demand instruments was applied in categorising and counting of each policy instrument. The bibliometric analysis was then carried out to extract keywords of the policy instruments, construct a co-word network and complete the cluster analysis. The results indicate that the policies lack consistency and had relatively low authority. The results of content analysis show that the policy system relies heavily on environmental and supply instruments, whilst the use of demand instruments seems to be grossly inadequate. The results of the bibliometric analysis identify the core ideas of each policy instrument category, discuss the existing problems and then put forward the corresponding countermeasures. This study comprehensively and systematically analysed the policy instruments on facilitating the development of PC in China which broaden the research perspectives of the PC development by introducing the methods of political science. The research findings afford helpful information for future policy adjustments and elucidate the effective delivery of policies to facilitate PC development for developing countries. This study provides an in-depth understanding of policy instruments used by China's Government on PC development. By integrating the policy instrument analysis framework into the mixed methods of content analysis and bibliometric analysis, this study provides an innovative way to conduct policy instrument analysis.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-10
      DOI: 10.1108/ECAM-01-2022-0044
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Impact of COVID-19 pandemic on the quantity surveying practices in
           Malaysia

    • Free pre-print version: Loading...

      Authors: Shi Yen Tan , Nurshuhada Zainon
      Abstract: Malaysia has experienced a significant surge in COVID-19. The “new normal” has plunged construction players into one of the most challenging times in their history, including the quantity surveyors (QS). Playing a primary role from pre-construction to post-construction stages, QS is essential to ensure project success. This study aims to clarify the impact of COVID-19 on quantity surveying practices to provide a better understanding of the construction sector's downturn during the pandemic. Preliminary exploratory interviews were conducted with ten QS, architects, project managers and engineers to identify quantity surveying practices affected by the pandemic, followed by a survey involving 222 respondents to determine the significance of these impacts. It was found that quantity surveying practices involving site visits, such as variation work valuation and interim payment valuation, were the most affected by the pandemic. On the other hand, consultative services such as value management and advisory services were the least affected. The study faced data sampling limitations. Further research requires more insights on different groups of QS, such as consultants, contractors and developers, and reasons behind the difference in consensus between QS and non-QS respondents. The insights from this research may help authorities and construction companies make necessary adjustments to ensure the quantity surveying profession remains resilient, hence a better chance of project success during a pandemic. This discovery can also be considered a significant opportunity to present the need for further development. The findings are expected to explain how COVID-19 had affected the duties of QS and identify which impact is the most significant. This research will complement the existing publications on the impacts of COVID-19 on the construction industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-10
      DOI: 10.1108/ECAM-11-2021-0988
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Hierarchical structure and transfer mechanism to assess the
           scheduling-related risk in construction of prefabricated buildings: an
           integrated ISM–MICMAC approach

    • Free pre-print version: Loading...

      Authors: Cheng Fan , Deng Binchao , Yilin Yin
      Abstract: Under the background that engineering, procurement and construction (EPC) contracting model is introduced to adapt to the highly fragmented characteristics of prefabricated construction, the schedule management of general contractor is faced with the challenge of dynamic transmission and interaction of construction scheduling-related risk. The purpose of this paper is to develop the hierarchy of prefabricated construction scheduling-related risks from the perspective of the general contractor, and to analyze the transmission mechanism between risks. The paper also aims to further distinguish the difference of the impact degree of scheduling-related risks, and provide reference for formulating the strategy to alleviate the construction delay. Based on a review of the literature on prefabricated buildings, this paper identifies 22 scheduling-related risks in construction from the perspective of the general contractor. Semi-structured interviews were then conducted to obtain experts' views on the interrelationships among these risks. Following this, their overall structure was determined by using a hierarchical structure established by using interpretive structural modeling (ISM), and Matrice d'Impacts Croisés Multiplication Appliqués à un Classement (MICMAC) technique was applied to classify them into four groups according to their driving and dependence powers. The results indicate that the 22 scheduling-related risks in construction followed the inherent path of step-by-step transmission, and all of them could cause different degrees of delays in prefabricated construction. Among them, general experience in contracting projects, the use of emerging technologies and the completeness of the relevant standards and specifications were strong drivers of scheduling delays in construction, and should be prioritized by the general contractor in schedule management. The transitive link between scheduling risks can guide them in developing prevention strategies. Data quality and reliability risks are the major drawbacks of semi-structured interviews. These were minimized by engaging experts with rich theoretical and hands-on experience in prefabricated construction projects. The hierarchical model only reflects static influence relationships, and so dynamic interactions among scheduling-related risks should be studied in future. The primary value of this study is in its development of a hierarchical model by using the integrated ISM–MICMAC approach that reflects the interaction between scheduling risks in the construction of prefabricated buildings. The hierarchy of these risks and the results of a “driving-dependence power” analysis can guide the general contractor in taking targeted preventive measures to avoid scheduling delays in the construction of prefabricated buildings.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-05
      DOI: 10.1108/ECAM-09-2021-0785
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • The spatial pattern and dynamic evolution of basic public service level in
           Beijing-Tianjin-Hebei region from the perspective of COVID-19

    • Free pre-print version: Loading...

      Authors: Lida Wang , Xian Rong , Lingling Mu
      Abstract: This study aims to investigate the basic public service level in the Beijing-Tianjin-Hebei region under the impact of COVID-19. This study constructed a basic public service-level evaluation system from the five dimensions of education, culture, health, social security and infrastructure and environment, and measures the basic public service level in 13 cities in Beijing, Tianjin and Hebei using the entropy method. The spatial pattern and dynamic evolution of the public service level are analysed from the perspective of dynamic trends in time series and spatial distribution, along with the reasons for the evolution of spatial distribution. (1) The basic public service level in the 13 cities is generally on the rise, but the trend is unstable. (2) The basic public service level in space shows a general trend of attenuation from northeast to southwest, with significant spatial imbalance and orientation. (3) The regional differences first increase and then decrease. (4) The inter-group mobility of different basic public service levels is low, and cities with lower initial levels find it difficult to achieve leapfrog development. Moreover, the health service level of the region is still at a low stage, which is not conducive to effectively preventing and controlling the epidemic. From the perspective of this research, the spatial pattern and dynamic evolution of basic public service were adopted to analyse the coordinated development of the Beijing-Tianjin-Hebei region. Furthermore, this study discusses how to improve the basic public service level to ensure sustainable operation in the region under the impact of COVID-19.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-05
      DOI: 10.1108/ECAM-10-2021-0929
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Identifying the risk factors and their interactions of human–robot
           collaboration implementation during engineering project construction:
           evidence from China

    • Free pre-print version: Loading...

      Authors: Zhen Chen , Yaqi Zhao , Xia Zhou , Shengyue Hao , Jin Li
      Abstract: Human–robot collaboration (HRC) is an emerging research field for the construction industry along with construction robot adoption, but its implementation remains limited in construction sites. This paper aims to identify critical risk factors and their interactions of HRC implementation during engineering project construction. Literature research, expert interviews, a questionnaire survey and a social network analysis (SNA) method were used. First, literature research and expert interviews were employed to identify risk factors of HRC implementation and preliminarily understand factor interactions. Second, a questionnaire survey was conducted to determine the degree of interactions between risk factors. Third, based on the data collected from the questionnaire survey, SNA metrics were used to find critical risk factors and critical interactions. The critical risk factors consist of robot technology reliability, robot-perceived level, conflict between designers and users of construction robots, organisational culture, organisational strength, project cost requirements, changeability of project construction, project quality requirements and project safety requirements. The interactions between risk factors are strong and complex. Robot technology risk factors were relatively fundamental risk factors, and project risk factors had a direct influence on the risk of HRC implementation. The implementation cost of HRC was not identified as a critical risk factor. Individual risk factors could be mitigated by improving technical and organisational factors. This paper contributes to the body of knowledge in the field of both HRC behaviours and its risk management in construction project management. Identifying the critical risk factors and their interactions of HRC implementation in the construction industry and introducing social network theory to the research on critical risk factors are the innovations of this paper. The findings and proposed suggestions could help construction professionals to better understand the HRC risk factors and to manage the risk of HRC implementation more effectively.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-03
      DOI: 10.1108/ECAM-05-2021-0461
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Review of public–private partnerships across building sectors in nine
           European countries: Key adaptations for PPP in housing

    • Free pre-print version: Loading...

      Authors: Ritika Batra
      Abstract: This paper aims to review the existing practices of public–private partnerships (PPPs) in the building sectors in European countries, to be able to assess its suitability for housing provision while focussing on the social impact. Based on the sectoral spread of PPP, nine European countries were included in this study. Formative evaluation is used to structure the review based on four key attributes of PPPs to develop a comprehensive understanding of the existing PPP procedures and guidelines amongst these countries. Data were gathered through public and governmental reports, consultant reports, country guidelines, standards and procedures, and cases, in order to identify the prevalent practices and trends in these countries. The review identified the need to calibrate the PPP approach towards other stakeholders, particularly the end-users. It further highlighted the need to focus on social integration and social sustainability and establish set procedures for PPPs in housing to create a credible and trustworthy environment for the investors. Joint support from private and public partners and community participation has a diverse impact on the success of PPP in housing. This review shall enable governments, industry and stakeholders to make provisions and policies for overcoming the challenges identified with regard to PPPs and pave the way for its application in the housing sector ensuring a positive social impact. This review shall facilitate greater involvement of end-users and enhancing social integration in housing through PPP, and pave the way towards creating cohesive communities by focussing on the concept of togetherness and social sustainability. This study provides a holistic summation of the prevalent PPP practices and broadens the adaptations for the housing sector. The novelty of this paper specifically lies in learning from PPP practices across other building sectors for adapting its utilisation for housing and thereby extending the state of art for PPP housing.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-03
      DOI: 10.1108/ECAM-07-2021-0664
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Using secondary data in research on social sustainability in construction
           project management: a transition from “interview society” to
           “project-as-practice”

    • Free pre-print version: Loading...

      Authors: Ashish Goel
      Abstract: Access to unbiased self-reported (primary) data for a normative concept like social sustainability has been a challenge for construction project management (CPM) scholars, and this difficulty has been further amplified by the ongoing COVID-19 pandemic. This paper aims to address this issue by asserting the suitability of secondary data as a methodologically sound but underutilized alternative and providing directions for secondary data-based research on social sustainability in a project setting. By drawing on a framework for social sustainability and using “project-as-practice” approach as its point of departure, this conceptual paper identifies possibilities for utilizing multiple secondary sources in CPM research. The paper provides a roadmap for identification of secondary sources, access to data, potential research designs and methods, limitations of and cautions in using secondary sources, and points to many novel lines of empirical enquiries to stimulate secondary data-based research on social sustainability in CPM. Indicated secondary sources and empirical opportunities can support research efforts that aim to promote societal welfare through construction projects. The presented guidance will assist researchers in identifying, accessing and utilizing naturalistic, secondary data for designing and conducting empirical research that cuts across social sustainability and CPM. This, in turn, will facilitate methodological pluralism and “practice turn” in such research endeavors.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-03
      DOI: 10.1108/ECAM-10-2021-0905
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Causes of cost overruns in building construction projects in Asian
           countries; Iran as a case study

    • Free pre-print version: Loading...

      Authors: Shima Amini , Alireza Rezvani , Mohsen Tabassi , Seyed Saeed Malek Sadati
      Abstract: Cost overruns have been identified as the most significant challenge for construction sector stakeholders. Like many developing countries, the Iranian construction industry suffers from poor cost performance. So, the current research aims to investigate the causes of cost overrun in Iranian construction projects. This paper also reviews the findings of similar studies conducted in several Asian countries. This paper includes a literature review and a quantitative method with a questionnaire survey. The review is limited to the studies investigating the causes of cost overrun in an Asian country in the last decade. Moreover, the current research was conducted through a questionnaire prepared based on 43 common factors identified through the literature review. The required data were gathered from the representatives involved in handling construction activities in Iran. The collected data were analyzed based on relative importance index (RII), using the SPSS software package. The results showed that poor site management, improper planning, fluctuation of prices of materials, lack of experience, and poor economic condition are the critical reasons for cost overrun in Iranian construction projects. The findings also indicated that among the studies conducted in Asian countries, the first three factors have the highest frequency. This paper highlighted most studies concerning the cost overrun factors in construction projects in different Asian countries in recent years. Up-to-date knowledge helps to understand the complexity of this field in various periods and therefore minimizes the risk of cost overrun. This research can also be used as a benchmark for further studies to clarify similar issues in other developing countries.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-05-02
      DOI: 10.1108/ECAM-05-2021-0445
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Identifying the definition, measurement, research focuses, and prospects
           of project complexity: a systematic literature review

    • Free pre-print version: Loading...

      Authors: Junwei Zheng , Yu Gu , Lan Luo , Yunhua Zhang , Hongtao Xie , Kai Chang
      Abstract: Project complexity is a critical issue that has increasingly attracted attention in both academic and practical circles. However, there are still many gaps in the research on project complexity, such as the differentiated conceptualization of complexity and disjointed operationalization in the measurements. Therefore, this paper aims to conduct a systematic and detailed literature review on the concept, dimensions, assessment, and underlying mechanisms of project complexity. A systematic literature review methodology was applied to search and synthesize the research on project complexity, and a final sample of 74 journal articles was identified. This study first summarizes the concepts of project complexity from three different theoretical perspectives, and then identifies different approaches of measurement, evaluation, or simulation to assess project complexity. This paper finally establishes an integrative framework to synthesize the antecedents, mediators and moderators, and outcomes of project complexity, generating four suggestions for future research. This study summarizes the definition and operationalization of project complexity to reduce the discrepancies in the existing research and offers an integrative framework to offer a broad overview of the current understanding of project complexity, providing a potential way forward for addressing project complexity.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-29
      DOI: 10.1108/ECAM-05-2021-0425
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Critical barriers to prevention through design in construction
           in Developing Countries: a qualitative inquiry

    • Free pre-print version: Loading...

      Authors: Nnedinma Umeokafor , Abimbola Olukemi Windapo , Patrick Manu , Ikechukwu Diugwu , Hasan Haroglu
      Abstract: Given the complexities in improving safety in the construction industry globally, which is exacerbated by the complex safety environment in developing countries (DCs), prevention through design (PtD) has been established to improve occupational safety and health (OSH) where applied. However, it has received very little attention in DCs and the extant literature with limitations. Using Nigeria as a case study, the current study advances the understanding of PtD in DCs by investigating the critical barriers to PtD and other potential OSH responsibilities of designers in the construction industry. Twenty-eight semi-structured interviews and e-interviews of architects, builders and civil engineers in Nigeria were analysed using the six-phase thematic analysis. To improve the trustworthiness of the research, triangulation, peer-debriefing, refining the interview protocol and thick detailed description were done. The study's findings question the extant general knowledge and understanding of PtD among clients and designers and its technical aspect among designers where it is skewed to structural safety and omitted in universities' curricula. This explains the inconclusive findings of existing studies on why there is a high level of awareness of PtD but a low level of implementation. There is little client support for PtD, and designers have limited influence on clients in terms of it. The fear of liability from PtD is exacerbated by the limited legal system and lack of adequate legislation in the country. The demotivating attitudes of clients and contractors towards designers in terms of PtD are also reported, just as there are project delivery barriers such as traditional procurement not supporting PtD as design and build procurement does. For the sustainable growth in the practice of PtD, the increased and improved quality of education and awareness of PtD is needed but this must focus on instilling a robust understanding of it among designers based on the local context. This educational requirement can be supported by statute. Through qualitative data, the findings explain and offer insight into the inconclusive findings in the extant studies on PtD in Nigeria. Also, it contributes to improving health and safety by advancing the understanding of the critical barriers to PtD and other potential OSH responsibilities of designers in D Nigeria's construction using qualitative data.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-27
      DOI: 10.1108/ECAM-04-2021-0304
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A hybrid approach to supporting physical-change-based renewal projects
           selection decisions in high-density city: a case study of Chongqing

    • Free pre-print version: Loading...

      Authors: Yizhong Chen , Taozhi Zhuang , Guiwen Liu
      Abstract: The aims of this paper is to establish an appropriate physical-change-based renewal (PCBR) projects selection mechanism capable of selecting the combination of the PCBR projects that can make up an integrated urban renewal program in high-density cities. The research design follows a sequential integrated methodology that combines the calculation algorithms of Fuzzy Analytic Network Process (Fuzzy-ANP) with Zero-One Goal Programming (ZOGP) to support decisions for the selection of PCBR projects. In the first phase, general criteria for assessing the sustainability performance of PCBR projects were collected from relevant literature. In the second phase, the Fuzzy-ANP was used to identify the priority weights of the candidate projects through clarifying the interdependent degree between the criteria and candidate projects. Finally, ZOGP method was selected as a predetermined number of PCBR projects among candidate projects. The feasibility and effectiveness of this hybrid approach is then verified in a case study of Yuzhong District, Chongqing in China. The results of this study indicate that the integrated method is capable of directing the decision maker toward the best compromising solution of PCBR program that can achieve the maximization of sustainable benefits and allocate limited resources most efficiently. The novelty of this paper consists in combining the algorithms of the Fuzzy-ANP method with those of the ZOGP model that serves as an effective analysis tool to address practical decision problems. This is the first hybrid algorithms to make PCBR projects selection decision that reach the maximization of the sustainable benefits, both in economic and socio-environmental terms.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-26
      DOI: 10.1108/ECAM-01-2022-0028
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Barriers to stakeholder engagement in sustainable procurement of public
           works

    • Free pre-print version: Loading...

      Authors: Amma Kyewaa Agyekum , Frank Desmond Kofi Fugar , Kofi Agyekum , Isaac Akomea-Frimpong , Hayford Pittri
      Abstract: The absence of effective stakeholder engagement at the early planning and implementation stages impact projects negatively. However, the role of stakeholders in Sustainable Procurement (SP) is not well recognized and as such there is limited involvement of stakeholders in sustainable procurement of public (SPP) works. This research aims to examine the barriers to stakeholder engagement in SPP works. A survey of 104 respondents from eight procurement entities of tertiary institutions in Ghana was undertaken and validated with seven procurement experts. After satisfying all the necessary tests of reliability of the survey instrument and sample size, the data was subjected to the Principal Component Analysis (PCA) to determine the critical barriers. The study's results indicate that there are three cluster of barriers to stakeholder engagement in SPP works. They are organisational structures and knowledge driven factors, attitudinal and stakeholder fatigue and relational and information sharing processes. This study offers relevant data for policy makers, organisations and local communities in establishing controls against barriers to stakeholder engagement. Furthermore, this research presents policy makers with recommendations to improve communication and organisational policies in enhancing stakeholder participation in SPP works in Ghana and other developing countries. Although studies on SP has increased with time, issues such as obstacles to stakeholder engagement in SP remain unexplored. Empirical data presented in this study bridges the gap that exists on the barriers of stakeholder engagement in SPP works in the Ghana Construction Industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-26
      DOI: 10.1108/ECAM-08-2021-0746
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Bargaining optimization model for risk renegotiation with fairness
           concerns in infrastructure PPP projects

    • Free pre-print version: Loading...

      Authors: Canjun Chen , Lelin Lv , Zhuofu Wang , Ran Qiao
      Abstract: Reasonable risk sharing is the key to the smooth implementation of infrastructure public-private partnership (PPP) projects and the optimization of benefit distribution among the participants. This study aims to explore the risk redistribution ratio between the government and the private sector under different degree of fairness concern. Renegotiation is a mechanism to provide flexibility and make up for incompleteness of PPP contracts. However, the threshold value of risk redistribution ratio and negotiation cost are not explicitly considered in previous studies. In addition, these studies do not consider the influence of the fairness concern psychology on the negotiation process. To address these gaps, based on risk-income equilibrium analysis, this paper established the bargaining optimization model of PPP projects renegotiation considering the fairness concerns of the negotiating parties. Furthermore, this study analyzed the influence of fairness concern degree on negotiation thresholds, negotiation results, and negotiation incomes under three scenarios. The results showed that excessive focus on the fairness of incomes may exclude the risk redistribution ratio that is most beneficial to project incomes from the negotiation threshold. Moreover, the increase in the fairness concerns of negotiating parties can reduce the negotiation success period, but the net income may not necessarily be improved. The main contribution of this paper is to propose a new risk renegotiation methodology based on the risk-income equilibrium analysis, which is helpful to develop risk management strategies in the construction field. The research results can provide government with reference about renegotiation in decision making and provide theoretical support for the practice of PPP renegotiation.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-26
      DOI: 10.1108/ECAM-11-2021-1006
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • The role of contract incompleteness factors in project disputes: a hybrid
           fuzzy multi-criteria decision approach

    • Free pre-print version: Loading...

      Authors: Asli Pelin Gurgun , Kerim Koc
      Abstract: Contract incompleteness with deficiency, inconsistency, defectiveness, and ambiguity in contract clauses, which can cause misunderstandings and misinterpretations, may result with disputes in projects. This study aims to investigate contract incompleteness factors with a hybrid fuzzy multi-criteria decision approach. Contract incompleteness factors were ranked by fuzzy VIKOR (Visekriterijumska Optimizacija I Kompromisno Resenje) method, and the most significant factors were subjected to fuzzy decision-making trial and evaluation laboratory (DEMATEL) to examine their causal relationships. The study is not limited to ranking the identified factors solely, since their cause-effect interactions are also essential for proper risk management in construction projects. Hybrid use of multi-criteria analysis reveals that ambiguity in enforceability including excessive demands and significant amendments in the scope of works are the top two causal contract incompleteness factors, while lack of implementation details and focus of focal point, and insufficient supporting and technical documents are the most affected ones. Contractual causes of disputes due to contract incompleteness factors other than requirements of the contracts have been rarely investigated in the literature. The research is one of the first studies in the literature investigating the causal relationship among factors in construction contracts, which might lead to project disputes. Findings are expected to improve contract drafting, eventually contributing to effective risk management in construction projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-26
      DOI: 10.1108/ECAM-11-2021-1020
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Predicting the trends and cost impact of COVID-19 OSHA citations on US
           construction contractors using machine learning and simulation

    • Free pre-print version: Loading...

      Authors: Hooman Sadeh , Claudio Mirarchi , Farzad Shahbodaghlou , Alberto Pavan
      Abstract: Occupational Safety and Health Administration (OSHA) of the U.S. government ensures that all health and safety regulations, protecting the workers, are enforced. OSHA officers conduct inspections and assess fines for non-compliance and regulatory violations. Literature discussion on the economic impact of OSHA inspections with COVID-19 related citations for the construction sector is lacking. This study aims to investigate the relationships between the number of COVID-19 cases, construction employment and OSHA citations and it further evaluates the total and monthly predicted cost impact of OSHA citations associated with COVID-19 violations. An application of multiple regression analysis, a supervised machine learning linear regression model, based on K-fold cross validation sampling and a probabilistic risk-based cost estimate Monte Carlo simulation were utilized to evaluate the data. The data were collected from numerous websites including OSHA, Centers for Disease Control and the World Health Organization. The results show that as the monthly construction employment increased, there was a decrease in OSHA citations. Conversely, the cost impact of OSHA citations had a positive relationship with the number of COVID-19 cases. In addition, the monthly cost impact of OSHA COVID-19 related citations along with the total cost impact of citations were predicted and analyzed. The application of the two models on cost analysis provides a thorough comparison of predicted and overall cost impact, which can assist the contractors to better understand the possible cost ramifications. Based on the findings, it is suggested that the contractors include contingency fees within their contracts, hire safety managers to implement specific safety protocols related to COVID-19 and request a safety action plan when qualifying their subcontractors to avoid potential fines and citations.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-25
      DOI: 10.1108/ECAM-10-2021-0953
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Evolutionary game of government safety supervision for prefabricated
           building construction using system dynamics

    • Free pre-print version: Loading...

      Authors: Yuebin Zhang , Xin Yi , Shuangshuang Li , Hui Qiu
      Abstract: This study aims to reduce the construction safety accidents of prefabricated building (PB) projects, improve the efficiency and effectiveness of safety supervision by government departments, and provide theoretical reference for improving the safety supervision system of PB construction. Considering the information asymmetry between government supervision departments and construction contractors and the interactive relationship between the two parties under bounded rationality, we propose an evolutionary game model for the construction safety dynamic supervision of PBs and analyze the evolutionary strategy of the game. The system dynamics (SD) method is used to simulate and analyze the evolutionary game process under a dynamic supervision strategy and the adjustment of external variables. The cost difference between the government's strong and weak supervision, the construction contractor's additional expenditure for strengthening safety management, and other factors affect system stability. The government can dynamically adjust the penalties based on the construction contractor's subjective willingness to ignore safety management and further adjust their rate of change based on the completion of the supervision goals to improve the efficiency and effectiveness of construction safety supervision. This study makes contributions in two areas. Through a combination of SD and an evolutionary game, it provides new insights into the strategic choice of the main body related to PB construction safety. Additionally, considering the nonlinear characteristics of construction safety supervision, it provides useful universal suggestions for PB construction safety.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-21
      DOI: 10.1108/ECAM-06-2021-0501
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • The relationship between empowering leadership and project performance:
           a resource perspective

    • Free pre-print version: Loading...

      Authors: Junwei Zheng , Yu Gu , Zhenduo Zhang , Hongtao Xie , Peikai Li , Hongyang Li
      Abstract: While existing literature emphasizes the importance of empowerment in construction projects, the working mechanisms of empowering leadership in the project context are unclear. Based on conservation of resources (COR) theory, this study aimed to examine the relationship between empowering leadership and project performance, highlighting the mediation roles of creative self-efficacy and leadermember exchange and the moderation role of perceived overqualification. The authors collected data from 287 project members in different projects and tested the integrated conceptual model through moderated mediation analysis with bootstrapping strategy. The results revealed that empowering leadership was positively related to project performance through creative self-efficacy and leader–member exchange. Perceived overqualification served as significant moderator. The findings contribute to the understanding of empowering leadership in projects by verifying and extending the resource acquisition and investment process in the project context. The results of this study also demonstrated that creative belief and social exchange facilitate the effectiveness of project members' task efforts and outcomes and that perceived overqualification might not exert a detrimental effect on project performance.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-21
      DOI: 10.1108/ECAM-11-2021-1024
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Group management model for construction workers' unsafe behavior based on
           cognitive process model

    • Free pre-print version: Loading...

      Authors: Shuwen Deng , Yili Cai , Longpan Xie , Yonggang Pan
      Abstract: Unsafe behavior is a major cause of safety accidents, while in most management measures for unsafe behavior, the construction workers are generally managed as a whole. Therefore, this study aims to propose group management of construction workers' unsafe behavior considering individual characteristics. A cognitive process model with ten cognitive factors was constructed based on cognitive safety theory. The questionnaire was developed and validated based on the cognitive model, and the results showed that the questionnaire had good reliability and validity, and the cognitive model fitted well. Latent class analysis was used to classify the unsafe behaviors of construction workers. Four categories of cognitive excellent type, cognitive failure type, no fear type and knowingly offending type were obtained. Workers of cognitive excellent type have good cognitive ability and a small tendency for unsafe behaviors. Workers of cognitive failure type have poor cognitive ability and the potential for cognitive failure in all four cognitive links. Workers of no fear type have weak cognitive ability, and cognitive failure may occur in discovering information and choosing coping links. Workers of knowingly offending type have certain cognitive abilities, but cognitive failure may occur in choosing coping link. This study formulates targeted management measures according to the potential characteristics of these four types and provides scientific theoretical support for the personalized management of unsafe behavior.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-21
      DOI: 10.1108/ECAM-12-2021-1073
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Using evolutionary game theory to study construction safety
           supervisory mechanism in China

    • Free pre-print version: Loading...

      Authors: Xiaoyan Jiang , Haoyu Sun , Kun Lu , Sainan Lyu , Martin Skitmore
      Abstract: In China, external supervision on construction safety mainly comes from the government and supervision engineers (SEs). However, the construction safety supervisory mechanism (CSSM) contains some dilemmas affecting the improvement of safety performance, such as the declining impact of SEs, the increasing rent-seeking behaviors of contractor and excessive government interference. This study aims to depict and analyze the CSSM in China from an evolutionary game view. The objectives are to understand the supervision strategy and evolutionary behaviors of different stakeholders, propose suggestions for improving safety performance and help the key safety supervision stakeholders, especially the government, formulate a suitable safety supervision strategy. This research uses tripartite dynamic evolutionary game theory to study the CSSM in China and solve the stable equilibrium solution using system dynamics. This study has revealed the game relationship of construction safety supervision mechanisms in China and solved the stable equilibrium solution. The results prove that a supervision engineer (SE) plays a crucial role in the CSSM, and “supervision engineer useless” is an unreasonable assertion. For government supervision agency (GSA), excessive inspection and free-market regulation are neither wise strategies. GSA can reduce the inspection frequency when general contractors (GCs) input high safety investments and SEs implement responsible supervision. But keeping proper government supervision to avoid GC's unlawful behaviors and SE's rent-seeking is indispensable. In addition, excessive governmental supervision will weaken SE's role, so the government should transfer some supervision powers to SE. This study focuses on the dynamic evolution process between GSA, GC and SE. This method is different from most research that neglected the dynamic characteristic of system and game solution stability. The research methods not only contribute to construction safety supervision policy-making in China but also help to improve supervision efficiency in other countries and other fields.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-20
      DOI: 10.1108/ECAM-03-2020-0182
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Blockchain technology in construction organizations: risk assessment
           using trapezoidal fuzzy ordinal priority approach

    • Free pre-print version: Loading...

      Authors: Mahsa Sadeghi , Amin Mahmoudi , Xiaopeng Deng
      Abstract: In the digital transformation era, the construction industry is not immune to unintended consequences and disruptions of distributed ledger technologies like blockchain. At the micro-level, construction organizations need an in-depth understanding of blockchain risks to take proactive strategies for being on the safe side. This study seeks to answer “What are the risks associated with blockchain technology from the firm-level perspective' And how can this disruptive technology overshadow the business objectives and impact organizational criteria'” The current research proposes a novel model for risk assessment based on the trapezoidal fuzzy ordinal priority approach (OPA-F) in the multi-criteria decision-making (MCDM) context. The proposed model handles uncertainties of experts' judgment around three primary parameters: the importance of organizational criteria, the impact of blockchain risks on criteria and the probability of risk occurrence. The case study shows that organizational “communication and information” is exposed to the most blockchain risk. On the contrary, blockchain has less to do with an organization's “corporate social responsibility.” Furthermore, effective blockchain risk management can bring about cost efficiency, quality and improved customer experience for this case study. In the end, the authors develop a conceptual blockchain risk management framework based on findings. This study will broaden researchers' horizons regarding “blockchain in construction context” and “blockchain risk management.” Furthermore, executives looking for blockchain-based solutions can benefit from research findings and lessons learned from this case study before decision-making. Lastly, the risk assessment model based on trapezoidal OPA-F can be used both for research purposes and industrial decision problems. To the best of the authors’ knowledge, it is for the first time that the OPA-F is employed in a risk assessment model. Also, the original OPA-F is extended to trapezoidal OPA-F using trapezoidal fuzzy numbers, and it is the first attempt to evaluate blockchain risks facing construction organizations and develop a blockchain risk management framework accordingly.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-19
      DOI: 10.1108/ECAM-01-2022-0014
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • The values and barriers of BIM implementation combination evaluation based
           on stakeholder theory: a study in China

    • Free pre-print version: Loading...

      Authors: Yansheng Chen , Xiaotong Cai , Jie Li , Peng Lin , Huitong Song , Guoqing Liu , Dongming Cao , Xiaohui Ma
      Abstract: This paper aims to the perspective of stakeholders, from external variables of the Building Information Modeling (BIM) system, users, task flow, the nature of the development of the execution process, organizational structure and policy impacts, that established a relationship among the internal concepts and intentions for the BIM application, individual or organizational differences, controlling interference factors and environmental constraints, discussed the combination of the values and barriers of BIM implementation. Through the co-occurrence statistics and genre analysis based on co-citation context analysis and constructs the common information that impacts the combination of values and barriers of BIM implementation. Then, the paper chose the expert database of the green construction and intelligent building branch of the China construction association, and obtained 104 sample data through modified snowball sampling, using exploratory factor analysis with factor load linear functions, combined factor variance contribution rate weights.actor variance contribution rate weights. The results show that eight aspects can be defined as the values of BIM implementation (VI), and the barriers of BIM implementation (BI) mainly come from five aspects caused by insufficient cognition and two aspects of an uncertain value in China. This research reflects a combined evaluation of the values of BIM implementation and barriers of BIM and highlights the significance of the sustainable development of BIM technology and the value of building future informatization applications.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-19
      DOI: 10.1108/ECAM-08-2020-0607
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Quantifying the impact of ISO 9001 standard on the project and engineering
           management and success factors; A case of construction industry

    • Free pre-print version: Loading...

      Authors: Ahmed Ali Khatatbeh
      Abstract: This study evaluates the implementation of ISO 9001 using total quality management on the engineering, procurement and construction phases in the Jordanian construction sector. A quantitative design has been employed with a total of 132 project team members selected from 5 construction organizations working in Jordan. A close-ended questionnaire was used to gather data which was later evaluated using descriptive and inferential statistics. The results show a significant role in project performance, customer satisfaction, project quality, cost-effectiveness, time effectiveness, shared cooperation and motivation of employees. It emphasizes the role of engineering in achieving the ISO 9001 standard. Quality standards in the construction project were also endorsed by 46.2% of participants, while 33.3% responded neutrally. The time effectiveness aspects of ISO 9001 endorsed by 38.5% participants 33.3% participants disagreed. Majority of the managers (61.5%) agreed that poor planning is a major barrier in the engineering phase (p-value, 0.011), followed by the incomplete design (56.4%) as the prime impeding factors linked to the decline of the quality in the construction sector. With the integration of the ISO 9001 quality standard, project managers can improve the project quality and make it cost-effective. The successful adaptation of the ISO 9001 certification allows the company to not only market its product/service but also internally audit itself for the possible deficits in its work capacity.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-18
      DOI: 10.1108/ECAM-07-2021-0656
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Project management for sustainable buildings: a comprehensive insight
           into the relationship to project success

    • Free pre-print version: Loading...

      Authors: Quan Phung , Bilge Erdogan , Yasemin Nielsen
      Abstract: The paper aims to identify core components for managing sustainability in construction-building projects and to understand how these components support each other to achieve project success. It proposes a model for sustainable project management (SPM) to achieve sustainable project success (SPS). The research utilised structural equation modelling to empirically test the conceptual model and the hypotheses associated to the 35 project-management related success factors and 24 performance criteria identified in literature review. Data was collected through 143 questionnaires carried out with construction professionals who have minimum two years' experience in sustainable building projects across the UK. Mediation analysis was used to identify the inter-relationships between the variables and components in the model. The paper developed a model for SPM which consists of five components: (1) sustainability goal definition, (2) project team enhancement toward sustainability, (3) planning for sustainability, (4) sustainability assessment and (5) stakeholder management. Stakeholder management and sustainability goal definition were found to have a significant and direct impact to the achievement of SPS. The other three were found to generate an indirect but important impact on the SPS. The results showed that attention should be paid to all five components to fully support the development of sustainability in projects. Regarding the research approach, the generalisation of this research's findings is limited to the construction industry in the UK and similar developed countries. This paper provides a further understanding of the inter-related effects of SPM and their impact on SPS.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-15
      DOI: 10.1108/ECAM-09-2021-0766
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Explaining the alienation of megaproject environmental responsibility
           behavior: a fuzzy set qualitative comparative analysis study in China

         This is an Open Access Article Open Access Article

    • Free pre-print version: Loading...

      Authors: Linlin Xie , Ting Xu , Tianhao Ju , Bo Xia
      Abstract: The alienation of megaproject environmental responsibility (MER) behavior is destructive, but its mechanism has not been clearly depicted. Based on fraud triangle theory and the fuzzy set qualitative comparative analysis (fsQCA) method, this study explored the combined effect of antecedent factors on alienation of MER behavior. Based on the fraud triangle theory and literature review, eight influencing factors associated with the alienation of MER behavior were first identified. Subsequently, the fuzzy-set qualitative comparative analysis was used in this study to reveal configurations influencing alienation of MER behavior. The study found nine configurations of MER behavioral alienation antecedent factors, integrated into three types of driving modes, i.e. “economic pressure + learning effect,” “institutional defect + moral rejection,” and “information asymmetry + economic pressure + expectation pressure.” By analyzing the configuration effects of various induced conditions, this study puts forward a comprehensive analysis framework to solve the alienation of MER behavior in the megaprojects and a practical strategy to control alienation of MER behavior.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-15
      DOI: 10.1108/ECAM-10-2021-0919
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A comprehensive risk assessment model based on a fuzzy synthetic
           evaluation approach for green building projects: the case of Vietnam

         This is an Open Access Article Open Access Article

    • Free pre-print version: Loading...

      Authors: Hung Duy Nguyen , Laura Macchion
      Abstract: Risks in implementing green building (GB) projects have emerged as a significant obstacle for GB development, especially in developing countries. In recent years, both academics and construction practitioners have paid considerable attention to the risks associated with GB. In this study, the authors aimed to create a comprehensive risk assessment model that considers three crucial risk features: impact level, probability of occurrence and risk manageability. In the research, authors adopted the mean scoring and fuzzy synthetic evaluation method to assess GB risks. Based on expert assessments, this model can determine the significance of risk factors, risk groups and overall risk. Notably, this research applied the proposed model to assess GB risks in Vietnam by surveying 58 GB experienced professionals. The findings revealed that GB risks are relatively high in Vietnam, implying that risk management is essential for GB projects to succeed. The results also showed that “lack of experience of GB designers” is the most critical factor, and “human resources risk in the design phase” is the top crucial risk group. This study contributes a novel and practical model to help practitioners assess risks in GB projects. In addition, this research offers detailed GB risk evaluations in Vietnam and thus could be a valuable reference for construction practitioners and future studies.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-14
      DOI: 10.1108/ECAM-09-2021-0824
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Analysis of factors influencing project portfolio benefits with synergy
           considerations

    • Free pre-print version: Loading...

      Authors: Libiao Bai , Xue Qu , Jiale Liu , Xiao Han
      Abstract: Realizing project portfolio benefits (PPBs) is considered a key challenge faced by enterprises. This challenge can largely be attributed to an unclear understanding of the factors influencing PPBs. However, synergistic relationships create complexity for the management of influencing factors. In response to this dilemma, the objective of this study is to quantitatively investigate the factors influencing PPBs while considering the synergistic effect among factors to provide guidelines for benefits management. Through an integration of the synergy degree of the composite system model and social network analysis (SNA), a refined model is proposed to explore the factors influencing PPBs. First, a list that includes financial and nonfinancial influencing factors is clarified. Then, the corresponding network links, which represent the synergistic relationships among the factors, are innovatively assessed based on the synergy degree of the composite system. Finally, the influencing factor network is analyzed using both individual and overall indicators of SNA. The resulting evidence demonstrates that four critical influencing factors exist, namely, “project managers,” “purchasers,” “development capacity” and “tangible resources.” These factors are relatively important and should be prioritized. Furthermore, the factors are divided into three subgroups: participant, resource and governmental factors. A general observation from the results is that factors that share the same subgroup are more likely to have a synergistic effect advantage, which leads to an increase in PPBs. The value of this paper lies in its proposition of a quantitative model that can be used to measure and analyze the factors influencing PPBs with synergy considerations. This research contributes to the body of knowledge on benefits management by linking synergy with PPBs. It presents new insights for managers on how PPBs may be effectively managed and promoted from the perspective of influencing factors.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-14
      DOI: 10.1108/ECAM-11-2021-0986
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Identification of barriers, benefits and opportunities of using bamboo
           materials for structural purposes

    • Free pre-print version: Loading...

      Authors: Ezra Kassa Hailemariam , Leule Mebratie Hailemariam , Ermias Adane Amede , Denamo Addissie Nuramo
      Abstract: Bamboo is still a traditional material that requires additional development before it can be considered as a modern and reliable alternative to steel, wood, and concrete. When compared to the huge volumes of information available on timber and concrete, bamboo has a little quantity of information. When it comes to estimating bamboo structures, there are not many options. As a result, pinpointing the key qualities and events that aid or impede bamboo's integration into the construction sector is vital. Factor analysis (FA) was used for summarizing and reducing data to significant ones in identifying barriers, benefits and potentials of using bamboo materials for construction. In this method, small number of factors was aimed at to explain most of the variances observed in a much larger number of variables. The goal was to identify not-directly-observable barriers and opportunities based on a larger set of observable or measurable indicators identified from literature. It attempted to identify underlying challenges and potentials that lay the patterns of bamboo material usage in the construction sector. From the results of FA, six specific components with loadings greater than 0.5 were kept for both the barrier and the advantages of using bamboo Lack of awareness on bamboo material, Unorganized supply chain, Exclusion from standards, Outperformance of industrial products, Lack of innovation and institutional support and Bamboo's mechanistic limitation was considered to be the root causes of all barriers. On the other end, structural suitability of bamboo, viable timber alternative, meeting sustainability's demand, attractive economic model, cost effective material, positive social implications were labeled as benefits of bamboo. Finally, major recommendation regarding research, facility, institutionalizing and resource management were forwarded. Ethiopia is a major bamboo producer in Africa. The bamboo sector, on the other hand, remains a part of the undeveloped and informal rural economy, preventing it from reaching its full potential. Despite technological advancements, bamboo is not commonly used in construction. As a result, using bamboo as a building material is frowned upon. In order to take effective action to accommodate bamboo as an alternative building material, significant challenges, benefits, and potential of the material must be stated with this purpose in mind.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-14
      DOI: 10.1108/ECAM-11-2021-0996
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Rethinking lean synergistically in practice for construction industry
           improvements

    • Free pre-print version: Loading...

      Authors: Wei Pan , Mi Pan
      Abstract: Lean construction is widely known as a theory or methodology of organizational management, while seldom been studied as a solution for industry improvements through practice. This paper explores the practical role of lean for construction industry improvements beyond its theoretical inspirations by empirically examining the industry understanding and practice with the case of Hong Kong. The research was designed as a mixed-method study by combining a critical literature review, semi-structured interviews with relevant professionals, and a follow-up research workshop that includes eight focus group discussions over two break-out sessions with Hong Kong construction stakeholders. The research results indicate a low awareness of the term “lean construction” in use, but its principles were implicitly embedded in relevant practices and techniques, particularly building information modeling (BIM), low or zero carbon building (L/ZCB), and prefabrication and modular construction. Practitioners perceived wide-ranging benefits of lean for construction industry improvements but were reluctant to pioneer its adoption and concerned the multi-level challenges. The paper provides a new practical perspective to rethink lean for construction industry improvements through its synergies with emerging practices, i.e. BIM and ICT, L/ZCB and sustainability, and prefabrication and modular construction.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-12
      DOI: 10.1108/ECAM-04-2021-0346
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Determinants of immersive technology acceptance in the construction
           industry: management perspective

    • Free pre-print version: Loading...

      Authors: Chioma Sylvia Okoro , Chukwuma Nnaji , Abdulrauf Adediran
      Abstract: The usefulness of technology for managing projects in the construction industry is indisputable. The potential utility of immersive technologies (ImTs), including virtual and augmented reality, has recently received significant attention. However, the construction industry, especially in developing countries, lags on the implementation of technology generally and ImTs specifically. Forecasting the potential successful ImTs acceptance at the individual level is essential to strategic planning. The study's objective was to develop and test a conceptual model of factors influencing ImTs acceptance at the individual level in the construction industry. A survey of construction management-level professionals in South Africa was undertaken. The study extended two complementary models, the technology acceptance model (TAM) and the theory of planned behavior (TPB), to analyze behavior towards technology acceptance using structural equation modelling. Results indicated that attitude significantly influenced the intention to use ImTs and perceived usefulness (PU) positively and significantly predicted the intention to use and usage attitude (UA). Further, the effects of perceived enjoyment (PEn) on UA, and social norms (SNs) and perceived behavioral control (PBC) on intention to use were positive and significant. Perceived ease of use (PEU) had negative and non-significant effects on intention to use and UA. By explaining 82% of the variance, the study established that the proposed model successfully evaluates how management-level professionals in the construction industry accept ImTs. The study provides valuable insight into the acceptance of ImTs from the perspective of management-level stakeholders in the South African construction industry. It offers fundamental direction to create a general theory on integrating ImTs in construction. This study systematically surveyed the intention to accept ImTs in the South African construction industry using an extension of the TAM and TPB models.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-12
      DOI: 10.1108/ECAM-06-2021-0476
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Content analysis of e-inspection implementation for highway infrastructure
           construction projects

    • Free pre-print version: Loading...

      Authors: Mamdouh Mohamed , Dai Q. Tran
      Abstract: The use of digital inspection or e-inspection of transportation projects has been proven as an efficient method over the last decade. A wide range of studies were dedicated to developing and applying e-inspection techniques and technologies. However, there is a lack of a comprehensive systematic review and content analysis of using e-inspection in highway construction and maintenance projects. The main objectives of this study were to explore the current trend and identify relevant inspection technologies and their applications for highway construction projects. A systematic review of 172 articles from 16 high-ranked academic journals in construction engineering and management published during 2000–2021 was conducted. This process resulted in 67 relevant articles included in the detailed content analysis. The analysis involved synthesizing six main construction elements and work types, nine typical inspection activities, and 23 technologies. The result of the analysis showed that among the six construction elements and work types, bridge and hot mix asphalt (HMA) recorded the largest share of e-inspection research. For the nine inspection activities, progress monitoring of construction operations was the highest focused area of e-inspection research. The most common e-inspection technologies are geospatial tools, 3D modeling, and unmanned aircraft systems (UASs). Camera-based inspection has existed for decades, however, has limited research development. The critical success factors in implementing e-inspection in highway projects are sharing data among different technologies, inspector training, and reducing the cost of technology purchase. This study is one of the first attempts to conduct a content analysis of the e-inspection implementation for highway projects. The findings of this study expose knowledge gaps in contemporary research related to implementation barriers such as cost of purchase and operation of e-inspection technologies and transferring data between technologies.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-12
      DOI: 10.1108/ECAM-08-2021-0699
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A science mapping approach-based review of near-miss research in
           construction

    • Free pre-print version: Loading...

      Authors: Pinsheng Duan , Jianliang Zhou
      Abstract: Near misses are important references for the construction industry to move toward zero injuries, and are of great significance in reducing accidents and improving safety education. To fully improve the construction industry's understanding and standardize the management process of near-miss events, this paper describes a systematic review of the research front and intellectual basis of near-miss events based on scientometric technique and CiteSpace. The authors reviewed and summarized the research wave and definitions of near-miss events in construction. The science mapping approach is used to conduct quantitative analyses of 120 relevant articles published between 2009 and 2019. Three research themes are identified via author analysis, keyword analysis and co-citation analysis: the construction of near-miss management systems, near-miss events research and characteristic research. It is found that improving the data collection method to maximize the quality of near-miss reports, optimizing and verifying the event analysis model considering the characteristics of near-miss events in construction, establishing a more comprehensive framework for the analysis of near-miss events and building a highly inclusive technology integration platform are the four main development directions for the future. According to Heinrich's law, incidents are mainly blamed on near-miss events such as workers' unsafe behaviors. Due to the complexity and variability of the construction site, near-miss events in construction may have different features. This article helps promote the understanding of near misses in academia, standardizing the management process of near-miss events, which is conducive to mining the potential value of such events in practice. Some insights into the research front and the intellectual base of near-miss research in construction are proposed.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-12
      DOI: 10.1108/ECAM-09-2021-0797
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Towards attaining efficient joint ventures in international construction:
           the case of Saudi Arabia

    • Free pre-print version: Loading...

      Authors: Mahmoud Sodangi
      Abstract: Despite the numerous benefits of adopting international construction joint ventures (ICJVs), effective operation of the joint ventures in Saudi Arabia is impeded by various limitations. Thus, this paper is aimed at determining, analyzing, and prioritizing these major limitations and to propose a strategy that can provide guidance on how best to promote the achievement of efficient joint ventures in international construction in Saudi Arabian construction industry. Content analysis was augmented by the expert-based assessment process to identify the critical limitations while the interpretive structural modeling (ISM) technique was utilized to analyze and determine the hierarchical structure of the limitations. This is important in order to comprehend and describe the complex relationship between the limitations. The results identified “selecting unsuitable partner”, “divergent organizational cultures, policies and procedures”, and “poor knowledge of local regulations by foreign partners” as the most critical limitations affecting the efficiency of joint ventures in international construction in Saudi Arabia. The inclusion of many variables (limitations) increases the complexity of the ISM technique, which compels the researchers to consider reduced number of variables in establishing the ISM structural hierarchy. Other variables that were perceived to be less critical were not included in the development of the ISM structural hierarchy. On the other hand, the structural hierarchy was not validated statistically, and this requires the use of other linear structural relationship techniques like the Structural Equation Modeling to test the validity of the hypothetical ISM structural hierarchy. The proposed strategy to mitigate the limitations presented in this study was not validated, and this requires further study to verify the accuracy of the strategy. The implications inferred in this study are better performing ICJVs in the execution of mega infrastructure projects in Saudi Arabia. The findings and managerial implications of the study are expected to further provide an invaluable guide that can support policymakers and all key stakeholders to establish efficient strategies and suitable measures that can enhance the successful implementation of ICJVs. The findings of this study provide comprehensive understanding of the limitations affecting the efficiency of ICJVs in Saudi Arabia. This can assist in mitigating the potential impacts of these limitations and to advocate for the achievement of efficient joint ventures in international construction in Saudi Arabia. Meanwhile, there is a need to further develop a framework that can elucidate on the proposed strategy to promote better performing ICJVs in Saudi Arabia. Also, the further study will seek to investigate the influence of project duration, value, location, or ownership on the performance of the joint ventures in order to generalize the findings to all forms of ICJVs.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-08
      DOI: 10.1108/ECAM-07-2021-0647
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A systematic review of the knowledge domain of institutional theory in
           construction project management

    • Free pre-print version: Loading...

      Authors: Yumin Qiu , Hongquan Chen
      Abstract: The large scale of construction projects and the coexistence of multiple logics in the construction field are sparking interest in applying an institutional perspective to investigate managerial issues in construction projects. However, only a few conceptual papers have been published thus far, and a literature review is needed to identify how that knowledge domain has developed. Based on the results of bibliometric analysis and content analysis, this study proposes potential future avenues for institutional theory in construction project management (ITCPM) studies. This paper reports a bibliographic coupling analysis and a co-citation analysis conducted to identify existing research trajectories and determine the primary features of the current ITCPM literature. In addition, this paper employed a content analysis, identified the evolutionary stages of ITCPM knowledge over time and built a framework of existing research. This paper first identified that the existing ITCPM studies evolve through three stages, and that the intellectual core of ITCPM studies can be categorized into five clusters. In addition, this paper proposes that future research can be extended from two existing streams: the institutional responses of project actors and the institutional outcomes of construction projects. This paper proposes several major questions that should be addressed by project management scholars working in both streams in order to develop an understanding of construction projects from an institutional perspective. This is the first literature review of the existing body of knowledge based on a joining of institutional theory and construction project management literature. It uncovers knowledge gaps in contemporary research, notably a lack of broader consideration of how project actors respond to institutional environments and of the institutional outcomes of project management.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-08
      DOI: 10.1108/ECAM-08-2021-0754
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • System dynamics tool for entropy-based risk control on sleeve grouting in
           prefabricated buildings

    • Free pre-print version: Loading...

      Authors: Chen Wang , Fengqiu Zou , Jeffrey Boon Hui Yap , Lincoln C. Wood , Heng Li , Linghua Ding
      Abstract: The production of sleeve grouting in prefabricated construction is routinely plagued by a variety of factors, and lack of mass data and complex environmental conditions over time make problems inevitable. Thus, a dynamic risk control system is a valuable support for the successful completion of the sleeve grouting process. This study aims to develop an entropy-based sleeve grouting risk dynamic control system. First, static risk assessment was conducted through the structured interview survey using the entropy weight method, followed by a dynamic risk control technique, where indicators were simulated through system dynamics containing causal loop diagrams and stock-and-flow diagrams. Finally, three types of risk control models, namely, “tortuous type”, “stable type” and “peak loop type”, were developed in the entropy-based sleeve grouting risk dynamic control system and simulated using system dynamics in a real case. Compared to traditional sleeve grouting risk management, the developed system enabled dynamic control over time.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-07
      DOI: 10.1108/ECAM-01-2021-0048
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • The effective mediating role of stakeholder management in the relationship
           between BIM implementation and project performance

    • Free pre-print version: Loading...

      Authors: Hong Min Zhang , Heap-Yih Chong , Yu Zeng , Wei Zhang
      Abstract: Building information modeling (BIM) has brought great advantages to project delivery and performance. However, BIM has also increased the complexity of projects. Research shows that for BIM implementation to have a positive impact in this innovative environment, BIM should be synchronized with stakeholder management. Therefore, this research aims to incorporate the theory of stakeholder management in BIM-enabled projects and determine the theory's intermediary role between BIM implementation and project performance. An extensive literature review was conducted and 13 critical success factors (CSFs) for BIM implementation, 29 CSFs for stakeholder management and 6 CSFs for BIM project performance were identified. These measurement items were tested using a questionnaire survey method and analyzed using structural equation modeling. This research was focused on Chinese megaprojects or complex projects that were under a high level of development of BIM, which could reflect the complex stakeholder relationships and BIM implementation for project performance. The results indicate that effective use of BIM can directly improve project performance. Further, stakeholder management has an important and positive intermediary role within the path of BIM implementation and project performance, particularly through (1) stakeholder dynamics (SD) and (2) stakeholder engagement or empowerment (SE). The logical relationship of mutual influence among CSFs has been revealed for BIM-enabled projects. This research contributes to the effective collaboration and practice of BIM in the construction industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-04-05
      DOI: 10.1108/ECAM-04-2020-0225
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Strategies for implementation of green roofs in developing countries

    • Free pre-print version: Loading...

      Authors: Serdar Durdyev , Kerim Koc , Ferhat Karaca , Asli Pelin Gurgun
      Abstract: Reportedly, green roof (GR) makes a significant contribution towards a truly sustainable-built environment; however, its implementation is yet to hit a sufficient level in developing countries. Thus, this study assesses GR implementation strategies in developing countries by providing a comparative analysis through experts in Kazakhstan, Malaysia and Turkey. The study adopts a four-step methodological approach to achieve the research aim: literature review, focus group discussion, fuzzy analytical hierarchy process (FAHP) analysis and correlation analyses. First, a literature review followed by a focus group discussion is used to determine 18 (out of 25 initially) strategies for the selected context and these are classified into three categories: governmental and institutional support, knowledge and information and policy and regulation. Afterward, the identified GR strategies are evaluated using the FAHP with the data gathered from the experts in the countries studied. Finally, correlation analyses were used to observe the strength of agreement between the assessments of experts from the included countries. The findings indicate that financial incentives, low-cost government loans and subsidies and tax rebates are the essential strategies for the wider adoption of GR. Evaluating the policy and regulations strategies also showed that mandatory GR policies and regulations and better enforcement of the developed GR policies are ranked as the most prominent strategies. The findings show a low level of agreement among respondents from Kazakhstan, while there is a high level of agreement between the experts in Malaysia and Turkey. The research contribution is twofold. First (research implication), the study identifies the strategies through a complete literature review. Second, the identified strategies are evaluated through the lenses of experts in three developing countries which are hoped to provide (practical contribution) a better understanding of the most effective strategies that require attention and enable the frontline stakeholders (particularly government authorities) to focus on them. The study findings provide a good point of departure to explore the strategies for broader adoption of GRs in developing economic setting.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-30
      DOI: 10.1108/ECAM-12-2021-1147
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Exploring relationships of urban seismic resilience assessment indicators
           with a fuzzy total interpretive structural model method

    • Free pre-print version: Loading...

      Authors: Yonggang Zhao , Xiaodong Yang , Changhai Zhai , Weiping Wen
      Abstract: The purpose of this paper is to investigate relationships of urban seismic resilience assessment indicators. To achieve this aim, construction of the urban seismic resilience assessment indicators system was conducted and 20 indicators covering five dimensions, namely building and lifeline infrastructure, environment, society, economy and institution were identified. Following this, this study used evidence fusion theory and intuitionistic fuzzy sets to process the information from experts then developed the fuzzy total interpretive structure model. A total of 20 urban seismic resilience assessment indicators are reconstructed into a hierarchical and visual system structure including five levels. Indicators in the bottom level including debris flow risk, landslide risk, earthquake experience and demographic characteristics are fundamental indicators that significantly impact other indicators. Indicators in the top level including open space, gas system and public security are direct indicators influenced more by other indicators. Other indicators are in middle levels. Results of MICMAC analysis visually categorize these indicators into independent indicators, linkage indicators, autonomous indicators and dependent indicators according to driving power and dependence. This paper attempts to explore relationships of urban seismic resilience assessment indicators with the interpretive structural model method. Additionally, Fuzzy total interpretive structure model is developed combined with evidence fusion theory and intuitionistic fuzzy sets, which is the extension of total interpretive structure model. Research results can assist the analytic network process method in assessing urban seismic resilience in future research.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-29
      DOI: 10.1108/ECAM-09-2021-0806
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Detecting the most appropriate delay analysis methods for mega airport
           projects

    • Free pre-print version: Loading...

      Authors: Murat Cevikbas , Zeynep Işık
      Abstract: This study aims to detect the most appropriate delay analysis method in mega airport projects. First, the criteria affecting the selection of delay analysis methods were detected through an in-depth literature review and an expert panel, which was conducted with 12 experts who have experience in delay analysis domain in mega airport projects. Later, fuzzy VIKOR (VIsekriterijumska optimizacija i KOmpromisno Resenje) approach was conducted by considering the detected selection criteria and the most common delay analysis methods. Windows Analysis method was detected as the best option for mega airport projects. It was followed by Time Impact Analysis (TIA), collapsed as-built analysis, as-planned vs as-built method and impacted as-planned method, respectively. Each project has its own characteristics and thus requires specific management techniques; therefore, selecting a delay analysis method without considering the project types and size may cause conflicts between the contracting parties. On the one hand, numerous fruitful studies concerning delay analysis methods have been conducted in the literature, but on the other hand, none of them has considered project characteristics in terms of project size and type while selecting the most appropriate delay analysis method. Moreover, the larger the size of a project is, the more vulnerable it is to encounter with delays. Mega airport construction projects are complex in their nature in that they are large size and involve multi-disciplinary processes; thus, they need special attention in the process of resolving delays. This study intended to fill this gap in the literature by focusing on selection of the most appropriate delay analysis method for mega airport projects, and it is clear that considering the project type and size in the selection of delay analysis methods will provide more reliable outcomes.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-29
      DOI: 10.1108/ECAM-12-2021-1107
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Social network analysis of the Construction Community in the anti-epidemic
           emergency project: a case study of Wuhan Huoshenshan Hospital, China

    • Free pre-print version: Loading...

      Authors: Xiaoming Wang , Nanjun He , Xiaokang Li
      Abstract: Anti-epidemic Emergency Projects (AEEPs) have unique characteristics such as a short construction period, high-quality requirements, complex construction environment, many construction participants and many uncertain affecting factors. The purpose of this paper was to propose the establishment method for the Construction Community (CC) of AEEPs (CC-AEEPs) by analyzing the management features of AEEPs, to establish the method of the Social Network Analysis (SNA) for CC-AEEPs, and to apply this method and the framework to Wuhan Huoshenshan Hospital for their verification. According to the CC theory, this paper explored the member composition and the establishment method for CC-AEEPs. The optimal management factors of CC-AEEPs were proposed by combining the management features of AEEPs and the SNA method for CC-AEEPs was further established. Finally, the applicability of the method was verified through a case study, and some countermeasures for the CC-AEEP social networks were proposed. The establishment of CC-AEEPs is an important guarantee to complete AEEPs with top speed and high quality. Ten types of CC-AEEP members all played different but irreplaceable roles in cooperative construction, among which the Government, the Contractor, and the Supervisor had outstanding performances. The SNA method could effectively analyze the complexity and cooperative relationship among the members in four aspects. The case study of Huoshenshan Hospital validated the important role of CC-AEEP and its social network in the AEEP research providing beneficial enlightenment for the cooperative optimization path of the AEEP construction participants. The new establishment method for CC-AEEPs was proposed from the perspective of “cooperation among human, society, and engineering” according to the theories of the engineering sociology and the CC. In this paper, the SNA method was applied to the research on the AEEP construction for the first time and the SNA method for CC-AEEPs was purposed. The optimal management factors of CC-AEEPs and the expansion path of the CC-AEEP social networks were proposed according to the whole-process tracking of AEEPs in Wuhan.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-18
      DOI: 10.1108/ECAM-08-2021-0724
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Risk events recognition using smartphone and machine learning in
           construction workers' material handling tasks

    • Free pre-print version: Loading...

      Authors: Pinsheng Duan , Jianliang Zhou , Shiwei Tao
      Abstract: The outbreak of the pandemic makes it more difficult to manage the safety or health of construction workers in infrastructure construction. Risk events in construction workers' material handling tasks are highly relevant to workers' work-related musculoskeletal disorders. However, there are still many problems to be resolved in recognizing risk events accurately. The purpose of this research is to propose an automatic and non-invasive recognition method for construction workers in material handling tasks during the pandemic based on smartphone and machine learning. This research proposes a method to recognize and classify four different risk events by collecting specific acceleration and angular velocity patterns through built-in sensors of smartphones. The events were simulated with anterior handling and shoulder handling methods in the laboratory. After data segmentation and feature extraction, five different machine learning methods are used to recognize risk events and the classification performances are compared. The classification result of the shoulder handling method was slightly better than the anterior handling method. By comparing the accuracy of five different classifiers, cross-validation results showed that the classification accuracy of the random forest algorithm was the highest (76.71% in anterior handling method and 80.13% in shoulder handling method) when the window size was 0.64 s. Less attention has been paid to the risk events in workers' material handling tasks in previous studies, and most events are recorded by manual observation methods. This study provided a simple and objective way to judge the risk events in manual material handling tasks of construction workers based on smartphones, which can be used as a non-invasive way for managers to improve health and labor productivity during the pandemic.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-18
      DOI: 10.1108/ECAM-10-2021-0937
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • At the end of the world, turn left: examining toxic leadership, team
           silence and success in mega construction projects

    • Free pre-print version: Loading...

      Authors: Umer Zaman , Laura Florez-Perez , Mahwish Anjam , Muddasar Ghani Khwaja , Noor Ul-Huda
      Abstract: Failures in both followership and leadership become inevitable as mega construction projects are directed and controlled by toxic leaders. Consequently, team member's desire for knowledge hoarding silence is triggered and goal alignment between the leader and team members suddenly fades away to realize success in mega projects. Considering the growing importance of these rarely examined constructs and fragmented literature on toxic leadership (TL), team silence and mega project success (PS) in the global construction industry, the present study aimed to examine the effects of TL and project team member's silence (PTMS) on the success of mega construction projects. Moreover, the mediating influence of PTMS to link TL and mega construction PS has also been explored. Drawing on survey data of 326 project professionals directly associated with mega construction projects worth US$62bn under the China–Pakistan Economic Corridor (CPEC), the conceptual model was tested with covariance-based structural equation modeling (CB-SEM) using Mplus program. Scales were adapted from previous research to measure TL (with its five-dimensions including abusive supervision, authoritarian leadership, self-promotion, narcissism and unpredictability), PS (with its three-dimensions including project management success, project ownership success and project investment success) and project team members' silence. Reflective–formative second order assessments were specifically applied to measure the multi-dimensional nature of TL and PS, respectively. Mplus estimations revealed that TL negatively influences PS, besides forcing a culture of silence among project team members. Interestingly, the relationship between TL and PS is also negatively mediated by the PTMS. The present study's findings are derived from data of project professionals (N = 326) to examine success in megaprojects under the CPEC. Hence, these findings may be re-validated through future studies on similar megaprojects (e.g. China's Belt and Road Initiative (BRI) worth US$8tn) that may also be predicated by TL tendencies, silent cultures and high-stakes involved to seize PS. Policymakers, construction practitioners and other key stakeholders (e.g. departmental heads/supervisors) can take advantage of this new evidence to better interpret the success paradox in mega projects, and to reduce the spread and long-term damage of TL on team members and eventually create opportunities for PS. The present study's novelty is manifested within this first empirical evidence on TL that breeds team silence in underperforming mega projects. Notably, present study offers alarming evidence on mega projects that can be easily derailed from success, as they continue to suffer from team silence and TL.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-16
      DOI: 10.1108/ECAM-08-2021-0755
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Critical factors of construction workers' career promotion: evidence from
           Guangzhou city

         This is an Open Access Article Open Access Article

    • Free pre-print version: Loading...

      Authors: Lin-lin Xie , Ziyuan Luo , Xianbo Zhao
      Abstract: This study aims to build a framework of the influencing factors of construction workers' career promotion and identifies the critical determinants so as to propose suggestions for the government and enterprises to offer construction workers a path for career promotion. In line with the theory of human resources, such as Herzberg's two-factor theory, this study constructs a theoretical framework that affects the career promotion of construction workers. Using evidence from Guangzhou city, valid data provided by 464 workers from 50 sites were collected by a questionnaire survey, and the significance test on the influencing factors of construction workers' career promotion was taken by binary logistic regression. The overall career development of construction workers in Guangzhou is worrying. The binary logistic regression indicates that age, working years, type of work, career development awareness, legal awareness, professional mentality, vocational psychological training and career development path are critical factors that affect construction workers' career promotion. This study for the first time explores the career promotion of frontline construction workers. Specifically, it identifies the critical factors that affect the career promotion of workers and thus lays a foundation for further research and the promotion and continuous and healthy development of the construction industry. Thus, this study is original and has theoretical and practical significance.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-15
      DOI: 10.1108/ECAM-08-2021-0691
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Border-crossing frequencies of CO embodied in international trade of
           construction products for final demand

    • Free pre-print version: Loading...

      Authors: Qun Gao , Bin Liu , Jide Sun , Chunlu Liu , Youquan Xu
      Abstract: This paper aims to better understand the linkage between CO2 emitters and industrial consumers. The border-crossing frequency is applied to calculate the average number of steps that a country takes in relation to the CO2 emissions of its construction industry. The maximum border-crossing frequency and declining speed of CO2 transfer are used to reveal the relationship between the length of production chains and the transfer efficiency of construction products. This paper maps the CO2 transfer that accompanies global production chains using the frequency of border crossing in the production processes of construction products. As the basic analysis framework, a multi-regional input–output model is adopted to analyse the average border-crossing frequency of CO2 transfer. Additionally, indicators including the maximum border-crossing frequency and declining speed of CO2 transfer are employed. Also, the maximum border-crossing frequency and declining speed of CO2 transfer are used to reveal the relationship between the length of production chains and the transfer efficiency of construction products. The results indicate that 85.49% of the CO2 in construction products needs to be processed in at least one country, reflecting that direct trade is the major pattern of transfer of CO2 from primary producers in global construction industries. The maximum border-crossing frequency is 4.88 for 15 economies, meaning that construction products cross the international borders up to 4.88 times before they are absorbed by the final users. The scale of the average border-crossing frequency ranged from 1.16 to 1.87 over 2000–2014, indicating that the original construction products crossed the international borders at least 1.16 times to satisfy the final demand of the consuming countries. The data from the economic MRIO tables in the WIOD are only available until 2014, which is a limitation for conducting this research in recent years. The fragmentation of production is not only reshaping global trade patterns, but also leading to the separation of CO2 emitters and final consumers in production chains. A growing number of studies have focussed on the impact of production fragmentation on accounting for regional and national CO2 emissions, but little research has been done at the scale of a specific industry. The major contribution of this paper lies in mapping the CO2 emissions that accompany the production chains of construction products from the perspectives of both magnitude and length. Additionally, this paper is the first to propose using maximum border-crossing frequency and declining speed to analyse the characteristics of global production chains induced by the final demand of major economies for construction products.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-11
      DOI: 10.1108/ECAM-03-2021-0262
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Pedestrian evacuation method based on improved cellular automata in
           emergencies

    • Free pre-print version: Loading...

      Authors: Zhai Longzhen , ShaoHong Feng
      Abstract: The rapid evacuation of personnel in emergency situations is of great significance to the safety of pedestrians. In order to further improve the evacuation efficiency in emergency situations, this paper proposes a pedestrian evacuation model based on improved cellular automata based on microscopic features. First, the space is divided into finer grids, so that a single pedestrian occupies multiple grids to show the microscopic behavior between pedestrians. Second, to simulate the velocity of pedestrian movement under different personnel density, a dynamic grid velocity model is designed to establish a linear correspondence relationship with the density of people in the surrounding environment. Finally, the pedestrian dynamic exit selection mechanism is established to simulate the pedestrian dynamic exit selection process. The proposed method is applied to single-exit space evacuation, multi-exit space evacuation, and space evacuation with obstacles, respectively. Average speed and personnel evacuation decisions are analyzed in specific applications. The method proposed in this paper can provide the optimal evacuation plan for pedestrians in multiple exit and obstacle environments. In fire and emergency situations, the method proposed in this paper can provide a more effective evacuation strategy for pedestrians. The method proposed in this paper can quickly get pedestrians out of the dangerous area and provide a certain reference value for the stable development of society. This paper proposes a cellular automata pedestrian evacuation method based on a fine grid velocity model. This method can more realistically simulate the microscopic behavior of pedestrians. The proposed model increases the speed of pedestrian movement, allowing pedestrians to dynamically adjust the speed according to the specific situation.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-11
      DOI: 10.1108/ECAM-10-2021-0921
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Decision support system for tower crane location and material supply point
           in construction sites using an integer linear programming model

    • Free pre-print version: Loading...

      Authors: Roya Amiri , Javad Majrouhi Sardroud , Vahid Momenaei Kermani
      Abstract: The site layout has a significant impact on the efficiency of construction operations. Planning an effective site layout partly involves identifying and positioning temporary facilities such as tower cranes and areas on the jobsite for materials storage. This study proposes an approach to optimizing the type and location of the tower crane and material supply point on construction sites. The problem is formulated into an integer linear programming (ILP) model considering the total cost of material transportation as the objective function and site conditions as constraints. The efficacy of the approach is demonstrated by finding the optimum site layout for a numerical example. The proposed model is validated and verified using two methods. Results indicate that the proposed model successfully identifies the type and location of the tower crane and the location of material supply point, leading to approximately 20% cost reduction compared with when such features of a site layout are decided solely based on experience and educated guesses of the construction manager. The primary contribution of this study is to present a modified linear mathematical model for site layout optimization that exhibits improved performance compared with previous models. The type and location of the tower crane and the material supply point as decision variables are extracted directly from solving the proposed model. The proposed model will help enhance time and cost efficiency on construction sites.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-08
      DOI: 10.1108/ECAM-06-2021-0517
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Towards enhancement in reliability and safety of construction projects:
           developing a hybrid multi-dimensional fuzzy-based approach

    • Free pre-print version: Loading...

      Authors: Saeed Reza Mohandes , Serdar Durdyev , Haleh Sadeghi , Amir Mahdiyar , M. Reza Hosseini , Saeed Banihashemi , Igor Martek
      Abstract: In the study, a five-dimensional-safety risk assessment model (5D-SRAM) is developed to improve the construction safety risk assessment approaches available in the literature. To that purpose, a hybrid multi-dimensional fuzzy-based model is proposed, which provides a comprehensive ranking system for the safety risks existing in a project by considering the contextualization of the construction-related activities resulting in an accident. The developed 5D-SRAM is based on an amalgamation of different fuzzy-based techniques. Through the proposed fuzzy analytic hierarchy process (AHP) method, the importance weights of essential risk dimensions playing role in defining the magnitude of the construction-related risks are obtained, while a precise prioritized ranking system for the identified safety risks is acquired using the proposed fuzzy technique of order preference similarity to the ideal solution (FTOPSIS). Through the application of the proposed 5D-SRAM to a real-life case study – which is the case of green building construction projects located in Hong Kong – contributions are realized as follows: (1) determination of a more complete range of risk dimensions, (2) calculation of importance weightings for each risk dimension and (3) obtainment of a precise and inclusive ranking system for safety risks. Additionally, the supremacy of the developed 5D-SRAM against the other safety assessment approaches that are commonly adopted in the construction industry is proved. The developed 5D-SRAM provides the concerned safety decision-makers with not only all the crucial dimensions that play roles toward the magnitude of safety risks posing threats to the workers involved in construction activities, but also they are given hindsight regarding the importance weights of these dimensions. Additionally, the concerned parties are embellished with the final ranking of safety risks in a more comprehensive way than those of existing assessment methods, leading to sagacious adoption of future prudent strategies for dealing with such risks occurring on construction sites. Numerous studies have documented the safety risks faced by construction workers including proposals for risk assessment models. However, the dimensions considered by such models are limited, generally constrained to risk event probability combined with risk impact severity. Overlooking other dimensions that are essential towards the calculation of safety risks' magnitude culminates in overshadowing the further adoption of fruitful mitigative actions. To overcome this shortcoming, this study proposes a novel 5D-SRAM.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-07
      DOI: 10.1108/ECAM-09-2021-0817
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Understanding subcontracting organizational arrangements for construction
           projects in China: integrating capabilities and uncertainty

    • Free pre-print version: Loading...

      Authors: Chenxi Shi , Yongqiang Chen , Yuanyuan Hua , Yinqiu Tang
      Abstract: Chinese construction projects commonly implement subcontracting, but organizational arrangements have received little attention. Some studies have debated the impact of firm capabilities on subcontracting. To address these issues, this study differentiates the general contractor’s technological capabilities and alliance management capabilities and investigates how capabilities affect the degree of subcontracting and subcontracting dispersion based on the resource-based view and transaction cost economics. By conducting a survey, 219 valid questionnaires were collected from Chinese construction companies. Multiple regression analyses were conducted to test the influence of capabilities on subcontracting organizational arrangements and the moderating role of uncertainty. The results show that technological capabilities decrease the degree of subcontracting, whereas alliance management capabilities increase the degree of subcontracting as well as subcontracting dispersion. The results also indicate that the positive effects of alliance management capabilities are weakened by project uncertainty. This study provides a better understanding of the diversity of subcontracting organizational arrangements in China. In addition, the findings may help general contractors carry out a rational arrangement by considering their capabilities and transaction hazards. This study contributes to a holistic understanding of how capabilities determine subcontracting by distinguishing technological capabilities and alliance management capabilities and refining the degree of subcontracting and subcontracting dispersion. Meanwhile, the findings highlight the complementarity of the resource-based view and transaction cost economics by examining the moderating effect of uncertainty.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-04
      DOI: 10.1108/ECAM-11-2019-0631
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Analysis of contractors' administrative characteristics in bid
           decision factors

    • Free pre-print version: Loading...

      Authors: Oluwole Alfred Olatunji , Chamil Dilhan Erik Ramanayaka , Funmilayo Ebun Rotimi , James Olabode Bamidele Rotimi
      Abstract: The normative literature suggests that there are more than seventy decision factors that contractors must consider if they intend to success in their bid and projects. In addition, such factors have been grouped in relation to project characteristics, client attributes, contractors' business administration and external factors. The extant literature suggests that the relationships between many of the bid decision factors are orthogonal and may not explain how bid-decisions shape project outcomes. This knowledge gap has stagnated research in this area. Building on findings of recent studies, this study unbundles bid decision themes by analysing key factors amongst contractors' administrative characteristics. In addition, the study determines intrinsic predictive correlation between the sub-themes. A total of 17 variables were listed in a structured questionnaire survey and presented to participants recruited through purposive snowballing. In total, 50 responses were received and formed the basis of descriptive and inferential statistical analyses. The study found that the 17 factors are significant in bid decisions and consequently in bid successes. However, the explanatory variables attached to the themes are most efficient if categorised into six sub-themes. These are contractor's administration depth, strategic direction, commercial intention and own market advantage, resources, experience as well as openness to technology imposed by new projects. Furthermore, four theoretical positions are significant. Contractors bid for projects strategically; they are less reliant on their resource capabilities in bid decisions; every bid decision aligns with a risk strategy, and financial stability enables them to establish appropriate risk mitigation arrangements that could ensure project success. These findings provide some support for the conceptual premise that bid decisions need to be rational, considered and strategically contribute to project outcomes.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-04
      DOI: 10.1108/ECAM-12-2021-1063
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Barriers to incorporation of indoor environmental quality (IEQ) principles
           into building designs

    • Free pre-print version: Loading...

      Authors: Aba Essanowa Afful , Joshua Ayarkwa , Godwin Kojo Kumi Acquah , Dickson Osei-Asibey , Ama Antwi Darkwah Osei Assibey
      Abstract: This research presents a comprehensive review of the literature on the barriers to incorporating indoor environmental quality (IEQ) principles into building designs. The aim was to identify these barriers in the literature and subsume them under broad categories for the development of a framework showing the interrelationships among the barriers. The research design used a systematic desktop review which comprised of three levels of screening. The first level allowed for a broad selection of papers; the second level of screening was done to limit the results to papers within the construction industry, and the third level of screening limited the documents strictly to the publication period of 2000–2021. Twenty-four (24) barriers were identified in the literature, including lack of integrated design teams, which ranked the highest in appearance, high initial costs, poor market for IEQ buildings and higher design charges among others. The identified barriers were classified into six (6) categories namely capacity barriers, economic barriers, process-related barriers, cultural barriers, client-related barriers and steering barriers. The findings of this study would enable practitioners and policymakers to better understand what is preventing the widespread adoption of IEQ designs in the built environment and devise actionable strategies to overcome them. It adds to the body of knowledge on IEQ research by categorizing the various barriers that prevent the delivery of IEQ projects. The developed barriers in this research can serve as a useful checklist to future researchers who may want to validate the barriers to IEQ designs in empirical studies and in different settings. The interconnectivity revealed by the web-like framework allows for an appreciation of the various barriers of IEQ adoption which would help in expanding the current knowledge on IEQ beyond the narrow scope of isolated barriers. The fact that the papers selected in this study are not limited geographically, underscores the wide applicability of the findings in the global construction industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-02
      DOI: 10.1108/ECAM-07-2021-0628
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Moderating effect of project size on the relationship between COVID-19
           safety protocols and economic performance of construction projects

    • Free pre-print version: Loading...

      Authors: Hilary Omatule Onubi , Ahmad Sanusi Hassan , Nor'Aini Yusof , Ali Ahmed Salem Bahdad
      Abstract: The COVID-19 health crisis has brought about a set of extra health and safety regulations, and procedures to the construction industry which could influence projects' economic performance (EP). The aim of this paper is to examine the effect of adopting COVID-19 safety protocols on construction sites on the economic performance (EP) of construction projects. Employing the survey method using a structured questionnaire, data were collected from small- and large-sized construction projects in Nigeria and analysed using partial least squares structural equation modelling (PLS-SEM) technique. The findings reveal that job re-organization and sanitization have negative significant effects on EP, while social distancing and specific training have no effect on EP. Furthermore, project size moderates the relationship between job re-organization, sanitization, specific training and EP with the stronger effect on the relationships observed in big projects, except for the relationship between sanitization and EP where the moderating relationship is stronger in small projects. However, there is no significant moderating effect of project size on the relationship between social distancing and EP. As construction project sites continue to operate amidst strict safety protocols, this study offers theoretical and practical insights on how construction projects can adhere to the safety protocols while performing economically. The originality of this study's findings stems from the fact that it is among the first to provide greater insight on how construction projects have fared economically considering the impact of the various COVID-19 protocols.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-02
      DOI: 10.1108/ECAM-11-2021-1035
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Quantification and benchmarking of construction waste and its impact on
           cost – a case of Pakistan

    • Free pre-print version: Loading...

      Authors: Muhammad Usman Shahid , Muhammad Jamaluddin Thaheem , Husnain Arshad
      Abstract: The construction industry struggles in environmental and economic performance due to waste generation. Several studies have measured this waste in the construction industry of developing countries like India, Brazil, China, Nigeria and Iran, and proposed strategies to enhance the overall efficiency. But no such work exists in Pakistan's context. The construction industry of Pakistan contributes significantly to the country's gross domestic product (GDP). And with several mega projects in progress to overcome the energy crises and improve the infrastructure of the country, the absence of proper waste management policies and plans calls for empirical research. Therefore, this study quantifies and benchmarks material waste in the local context, its impact on project cost and the effect of multiple subcontracting arrangements on waste generation. It also proposes a conceptual waste management plan (WMP) for local conditions which can be generalized for developing countries. This paper uses a mixed research approach by leveraging Saunders's research onion model. To benchmark the current wastage practices, quantitative data of material waste in the Pakistani construction industry are gathered through document review of accounting systems, inventory and payment records of 40 completed building projects. Using the data, the waste rate of different materials is measured along with their impact on cost. Additionally, the role of subcontracting arrangements in waste generation is also investigated. Also, semi-structured interviews are conducted with project managers of high- and low-performing construction organizations to propose a conceptual WMP for the local industry and developing countries. The highest wasteful materials by quantity are wood, sand and concrete blocks, and those by cost are wood, bricks and steel. By quantity, 123% more material was used on average than the actual productive work. Also, the labor only (L-O) subcontracting arrangement causes maximum waste. Moreover, the difference between the highest (155%) and lowest wasting company (104%) is 51%, highlighting the proactive and resistive waste management culture and approach by the worst- and best-performing companies. Further, the impact of waste quantities is more than 2% of the project cost. Finally, a conceptual model consisting of measures at the project, industry and national levels is also proposed as a guide for developing countries. The findings of this benchmarking study can help improve the project planning, execution and monitoring, and control practices by providing a better understanding of the material waste potential. This will help economize the construction industry and improve its sustainability. This is the first benchmarking study that quantitatively measures material waste in the construction industry of Pakistan. It highlights that costly as well as sustainability-implicating materials are frequently wasted in the local construction projects. Also, this study correlates the wastage with subcontracting arrangements. Additionally, an original conceptual WMP is proposed that could help the industry improve its performance. The findings could help the construction professionals identify the loopholes in their material management practices and not only save money but also ensure better sustainability.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-01
      DOI: 10.1108/ECAM-07-2019-0375
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Optimization of triage time and sample delivery path in health
           infrastructure to combat COVID-19

    • Free pre-print version: Loading...

      Authors: Cheng Zhou , Rao Li , Xiaoju Xiong , Jie Li , Yuyue Gao
      Abstract: This study presented the experience of improving the nucleic acid sample collection and transportation service in response to the epidemic. The main purpose is that through intelligent path planning, combined with the time scheduling of sample points, the process of obtaining results to determine the state of COVID-19 patients could be speeding up. The research optimized the process, including finding an optimal path to traverse all sample points in the hospital area via intelligent path planning method and standardizing the operation through the time sequence scheduling of each round of support staff to collect and send samples in the hospital area, so as to ensure the shortest time in each round. And the study examines these real-time experiments through retrospective examination. The real-time experiments' data showed that the proposed path planning and scheduling model could provide a reliable reference for improving the efficiency of hospital logistics. Testing is a very important part of diagnosis and prompt results are essential. It shows the possibility of applying the shortest-path algorithms to optimize sample collection processes in the hospital and presents the case study that gives the expected outcomes of such a process. The value of the study lies in the abstraction of a very practical and urgent problem into a TSP. Combining the ant colony algorithm with the genetic algorithm (ACAGA), the performance of path planning is improved. Under the intervention and guidance, the efficiency of hospital regional logistics planning was greatly improved, which may be of greater benefit to critical patients who must go through fever clinic during the epidemic. By detailing how to more rapidly obtain results through engineering method, the paper contributes ideas and plans for practitioners to use. The experience and lessons learned from Tongji Hospital are expected to provide guidance for supporting service measures in national public health infrastructure management and valuable reference for the development of hospitals in other countries or regions.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-01
      DOI: 10.1108/ECAM-10-2021-0877
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Quantifying the evolutionary mechanism of COVID-19 impact on international
           construction multi-projects: a risk driver perspective

    • Free pre-print version: Loading...

      Authors: Feng Jin , Wenwu Xiang , Zheng Ji , Bochen Zhang
      Abstract: The purpose of this paper is to quantify the evolutionary mechanism of coronavirus disease 2019 (COVID-19) impact on international construction multi-projects. From three concepts of complexity, stressor and detractor risks, a multi-project simulation model under COVID-19 outbreak is proposed to study the characteristics of contingency with three peaks of ordered and disordered states. Specially, COVID-19 brings forth mitigation fee, epidemic prevention fee, holdup fee and schedule delay fee of multi-projects. By integrating parametric model, Monte Carlo and chaos theory, a comparative analysis of its contingency with or without COVID-19 is conducted. Summarizing the simulated results, their total contingencies at certain risk tolerance are obtained at two status of static at one-time point and dynamic over time. Meanwhile, some major risks including detractors, complexities and stressors are screened out for mitigation, especially for epidemic prevention and control. Eventually, the real case is illustrated to demonstrate its validity. It provides a quantitative analysis framework for the impact of epidemic, a once-in-a-century black swan event with a long tail, on construction multi-projects. It conduct an effective model to quantify impacts of COVID-19 on international construction multi-projects for implementing effective counter-measures, which lay foundation for claims among different stakeholders. The term of detractor risk is applied to describe COVID-19 and quantify its impact upon international construction multi-projects. Further, a hybrid model by integrating parametric model and Monte Carlo in type I/II model is proposed to simulate their contingencies at disordered states. Finally, the simulated outcomes of these models are used to guide effective risk control to meet the requirements by the client.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-01
      DOI: 10.1108/ECAM-10-2021-0887
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Impacts of management control mechanisms on the performance of
           international construction joint ventures: an empirical study

    • Free pre-print version: Loading...

      Authors: Mershack Opoku Tetteh , Albert P.C. Chan , Gabriel Nani , Amos Darko , Goodenough D. Oppong
      Abstract: While previous studies have focused on identifying management control (MC) mechanisms in international construction joint ventures (ICJVs), the impacts of such MC mechanisms on the performance of ICJVs remain largely unknown. This study aims to investigate the impacts of MC mechanisms on the performance of ICJVs hosted in the developing country of Ghana. Through a comprehensive review of the literature, a theoretical model was developed, and data were collected through a questionnaire survey with 190 project managers composed of Ghanaians/locals and their foreign partners of ICJVs. The data were analyzed using partial least squares structural equation modeling. Results showed that both personnel and support and training control mechanisms have a positive and significant impact on project and company/partner performance. Surprisingly, insignificant and negative impacts exist between both mechanisms and socioenvironmental and company/partner performance from the local partners' view, respectively; the reverse is rather true from the foreign partners' perspective. This study contributes to the ICJV body of knowledge by analyzing the impacts of MC mechanisms on the ICJVs’ performance, enabling ICJVs frontliners (i.e. top managers) and project managers to better enhance their control structures and the ICJVs’ performance. This is arguably the first study to take the bipartite perspective rather than the unilateral view of studying the impacts of MC mechanisms on the performance of ICJVs.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-03-01
      DOI: 10.1108/ECAM-11-2021-0998
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • An integrated model of BIM return on investment for Australian small- and
           medium-sized enterprises (SMEs)

    • Free pre-print version: Loading...

      Authors: Apeesada Sompolgrunk , Saeed Banihashemi , M. Reza Hosseini , Hamed Golzad , Aso Hajirasouli
      Abstract: The business benefits envisaged for BIM represent the main criteria for decision-making about BIM implementation – or shy away from BIM. Despite the significance, traditional evaluation techniques have difficulty to capture “the true value” of BIM from multiple levels and dimensions – as an effective evaluation method is supposed to. This study aims to identify the significant factors that affect BIM return on investment (ROI), develop an integrated model for companies and examine the influence of intangible returning factors of BIM on the rate of BIM implementation. A cluster sampling technique was used; 92 questionnaires completed by Australian architecture, engineering and construction small- and medium-sized enterprises (SMEs) provided the basis to identify and analyse the key measurable returning factors, value drivers and strategic benefits associated with BIM ROI. Applying the PLS-SEM technique, findings reveal that a lack of reliable quantification methods for the ROI factors associated with BIM significantly affects the organisation's commitments to implement BIM. In essence, the failure to adequately identify and assess these benefits could result in the system not being appropriately implemented and supported by executive sponsors, who give priority to hard and tangible ROI measurements. The outcome of this study would be of direct appeal to policymakers, industry professionals and the academic community alike, in providing data-informed insight into the intersection between the implementation of BIM and the concept of ROI. Findings would provide a springboard for further research into using ROI factors to increase BIM implementation. Though the findings are directly applicable and contextualised for Australia, they provide lessons and offer a blueprint for similar studies in other countries and settings. That is, regardless of the context, findings raise awareness and provide a point of reference for the quantification of intangible returning factors rather than the tangible returning factors, as one of the first studies in its kind. The study provides original insight in drawing attention to an untapped area for research in BIM implementation, namely BIM ROI. Apart from raising awareness around BIM ROI, the study is novel in providing a quantified model that establishes the links and level of impacts of various factors associated with BIM ROI. Findings of this study, particularly add value to the body of knowledge related to the business implications associated with BIM implementation in the context of Australian SMEs, while providing lessons for other countries and settings.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-25
      DOI: 10.1108/ECAM-09-2021-0839
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Practical solutions for improving the suboptimal performance
           of construction projects using Dubai construction projects as an example
           

    • Free pre-print version: Loading...

      Authors: Hany Omar , Lamine Mahdjoubi
      Abstract: Poor performance remains a challenge for the construction industry worldwide. One of the key performance indicators of the construction industry is the timely delivery of projects. Despite the recent methodological and technological advances in the field, project-overrun remains a significant challenge for the industry. This paper seeks to propose practical solutions that allow overcoming the challenges and promote the opportunities for improving the performance of the construction projects in Dubai. This study focussed on the construction projects in Dubai; therefore, this research adopted a sequential mixed approach in two stages. The first stage involved face-to-face interviews with seven carefully selected construction professionals. Their answers were analysed to provide with the literature study “the informed-basis for the development of the online questionnaire”. The second stage involved an online survey administrated to 425 carefully selected construction organisations working in Dubai. Accordingly, a meticulous analysis for the prime causes of project overruns has also been undertaken. This analysis assisted proposing the most suitable solutions-based technologies that enabled alleviating overruns in the construction projects. The findings revealed that, there was a consensus agreement on the formidable opportunities for improving the performance of the construction industry in general and in particular in Dubai. These opportunities are intrinsically linked with the adoption of the latest technologies such as building information modelling, augmented reality, virtual reality and the artificial intelligence (AI). Whereas, adopting AI has already assisted two public authorities to release No Objection Certificates and work permits effectively within one day instead of 14 working days, which has saved 90% of the time and cost. Likewise, adoption of the AI has assisted delivering the construction project with a 9% of time saving and a 6% of cost saving due to embracing an automated system that enabled them to instantly detect and report the delays, once occurred. The main limitation of this study is that the study was limited to the construction industry in the Emirate of Dubai. Therefore, future research could target the whole United Arab Emirates construction industry to propose the practical solution on the country level. The literature study is replete with solutions, which tend to be theoretical more than practical. Therefore, the proposed practical recommendations will significantly assist the construction industry to improve its suboptimal performance to rescind the sovereignty of the irrelevant involvements. The research recommended establishing independent entity to lead the change in the construction industry; this entity will have the power of enacting rules and legislations. Furthermore, this independent entity will have the power and authority of dictations and impose sanctions on the non-committed organisations that are reluctant to adopt the recommended technologies and approaches. Based on the findings of the study, this paper draws a road map for the construction industry by determining practical solutions for improvements starting with an establishment of an independent authority that selects and tests the most appropriate technologies and approaches to contribute to performance improvements.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-25
      DOI: 10.1108/ECAM-10-2021-0956
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Framework proposal for BIM implementation in Brazilian construction and
           development companies

    • Free pre-print version: Loading...

      Authors: Tito Ceci de Sena , Márcio Minto Fabricio
      Abstract: This study proposes a framework for collaborative building information modeling BIM implementation in construction and development companies in the Brazilian architecture, engineering and construction (AEC) market. The study addresses aspects concerning BIM collaboration, levels of adoption and maturity, classification of BIM objects and use of tools. The study conclusions are based on a bibliographic review and on active participation in a BIM implementation process conducted with two construction and development companies that participated in the study, which allowed examining the practical problems of the elaboration of BIM in various technical specialties, and the proposition of a framework to help overcome these limitations. The research identified the importance of adopting standardized methods to develop models, establishing common classifications for objects to allow the use by different stakeholders on 3D, 4D and 5D processes, in a context that information is scattered and, in many cases, divergent across different companies and even different areas from the same company. The study presents a practical set of methods and tools to be used within a context common to the Brazilian AEC market, on which construction and development companies are responsible for the management of the design and construction phase of a building. The recommendations of the research take into account the shortage of nationwide frameworks and classification standards, so it contributes to filling some gaps of current literature that cover theoretical aspects of guidance documents for BIM implementation but do not detail specific practical applications within a determined context. The limitations of the framework proposed are its focus on establishing context-specific guidelines, which may not be suitable universally.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-25
      DOI: 10.1108/ECAM-11-2020-0942
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Productization and product structure enabling BIM implementation in
           construction

         This is an Open Access Article Open Access Article

    • Free pre-print version: Loading...

      Authors: Solmaz Mansoori , Janne Harkonen , Harri Haapasalo
      Abstract: This study aims to facilitate consistency of information in building information modelling (BIM) and address the current BIM gaps through the perspectives of the productization concept and product structure (PS). The study follows a conceptual research approach in conjunction with a single case study. First, the previous studies on BIM implementation, productization and PS are reviewed. Further, a case study is used to analyse the current state of productization in the construction sector and develop a functional PS for construction. A Part-Phase-Elements Matrix is proposed as a construction-specific PS to facilitate consistency in information and to enhance BIM. The proposed matrix provides new avenues to facilitate consistent information exchange through the interconnection between conceptual PS and standard building objects library, and encourage collaborative communication between stakeholders. This study explores the core of the productization concept and PS as means to facilitate consistency of information and thus address the current gaps in BIM. This as building projects progressively move towards systematic modular and prefabricated construction where the flow of reliable information about product and construction offerings becomes increasingly important.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-22
      DOI: 10.1108/ECAM-09-2021-0848
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Impact of transformational leadership on green learning and green
           innovation in construction supply chains

    • Free pre-print version: Loading...

      Authors: Hai Thanh Pham , Tho Pham , Huy Truong Quang , Chau Ngoc Dang
      Abstract: This study aims to examine the impact of transformational leadership on green innovation and green learning in construction supply chains. A theoretical framework of research hypotheses between transformational leadership, green learning and green innovation is developed. Using a survey questionnaire, data are collected from construction firms in Vietnam. Structural equation modeling is used to test the research hypotheses. The results indicate that transformational leadership promotes both green learning and green innovation (i.e. green product innovation and green process innovation) while green learning positively affects green process innovation. Furthermore, it is found that green learning mediates the linkage between transformational leadership and green process innovation. This study contributes to the development of leadership research in construction by showing the significance of leadership at the supply chain level. Leadership is regarded as a key factor for most organizations' success and competitive advantages. In construction, leadership has been widely studied at the project and organizational levels while its important role is also explored at the supply chain level. Nevertheless, in terms of construction supply chains, there has been still very limited evidence about the effects of transformational leadership. Thus, this study fills the gap in knowledge by empirically examining the relationships between transformational leadership, green learning and green innovation.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-21
      DOI: 10.1108/ECAM-05-2021-0379
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • The empirical relationship between contractor success and project
           innovation

    • Free pre-print version: Loading...

      Authors: Craig Langston
      Abstract: Innovation during project delivery is contested space. The aim in this research is to empirically explore the theory of this contested space and how project implementation can be optimized by the contractor to deliver better outcomes. It is hypothesized that project innovation has a proportional and measurable relationship to contractor success. Based on a novel conceptual framework, this research applies a case study methodology to analyse 31 construction projects undertaken by a single Australian middle-tier contractor. Benefits from innovation are not often equitably shared. There are risks and rewards. The project innovation zone is defined as a combination of three key performance indicators – efficacy, efficiency and margin – merged into a single index that most likely shows evidence of “working smarter”. Client–contractor project innovation (c2pi) is demonstrated to be strongly correlated with head contractor success (HCS), yielding an r2 value of 71%. Innovative projects mostly show positive change in efficacy, efficiency and margin when comparing “planned” and “actual” outcomes. Across the cases studied, 35% demonstrated likely evidence of innovative delivery and 52% demonstrated evidence of success from the construction contractor's perspective. These findings verify that, within the studied sample, the pursuit of innovation leads to projects that are likely to also have greater success for the head contractor, evidenced by the mix of five critical success factors: finishing on schedule, making profit, and having less defects, less accidents and higher quality workmanship. These outcomes arguably also apply to sub-contractors, where the head contractor assumes the role of “client”.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-21
      DOI: 10.1108/ECAM-05-2021-0460
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Nexus between construction sector and economic indicators for Turkey and
           European Union evidenced by panel data analysis

    • Free pre-print version: Loading...

      Authors: Mohammad Qabaja , Goktug Tenekeci
      Abstract: The research aims to study the regression, cointegration and causality between the construction sector (CS) and the Gross Domestic Product (GDP), considering other variables in the study such as interest rate, taxation, industry sector, investment and Foreign Direct Investment (FDI), which are analyzed through unique panel models. The study was conducted in Turkey and the ten other countries of the European Union (EU) from 1988 to 2019. Regression, cointegration and causality methods were used to investigate the different types of relationships between variables in the models. Data were obtained from official databases and the study contains four main stages, which are explained in detail in the methodology section. The study used the analysis methods of regression, cointegration and causality tests and found that the CS and GDP have long-run estimates and the relationship between the two for different countries is negative in a two-way direction. Results are detailed in the analysis section. No data were available for the variables before 1988 for most countries, which led to a limited number of observations and issues in statistical analysis methods. Previously, only input and output tables were used in the analysis. The impact of interest rate, taxation, investment and FDI has not been analyzed. Key variables are very relevant for Turkey, which suffers from chronical inflation and taxation regimes. These show variability with the EU countries for comparative analysis and have not been explored to date, remaining as a major gap for the construction industry. No attempts were made to use regression, cointegration and causality methods with variables. These analysis methods enable an understanding of the differences in variance (heteroscedasticity) and the presence of cross-sectional dependence (CSD), both critical for the reliability of the comparison of data sets and analysis.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-21
      DOI: 10.1108/ECAM-10-2021-0927
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Choosing to be a craftsperson: factors influencing career decision-making
           among apprentices

    • Free pre-print version: Loading...

      Authors: Innocent Chigozie Osuizugbo , Patricia Omega Kukoyi , Abiodun Olatunji Abisuga , Kabir Ibrahim
      Abstract: Human resource contributes significantly to the outcome of construction projects. In recent years, apprenticeship programs are being implemented to train young people to address shortage of skills workers and ageing workforce problem. This study aims to understand the factors influencing career decisions among apprentices in the construction sector. A qualitative research approach was used to address the objectives of the study. Forty semi-structured interviews were conducted to gain insights into the reason why young people decide to participate in construction craftsperson apprenticeship in Nigeria. The study reveals that “interest and passion”, “role model”, “macroeconomic environment and government policies”, “spirit of entrepreneurship”, “formal, informal and non-formal education” and “family socioeconomic status” are the factors influencing career decisions among construction craftspeople. The study provides fresh insights that can be used to develop strategies for attracting and increasing the number of young people that sign up for construction craftspeople apprenticeships. The apprentice training programmes are essential for addressing labour shortage, which is one of the factors affecting the performance of construction projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-16
      DOI: 10.1108/ECAM-03-2021-0198
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Comparing insolation on building façades in five different climates

    • Free pre-print version: Loading...

      Authors: Thanos N. Stasinopoulos
      Abstract: The objective is to provide a quantitative insight on the dynamic nature of insolation on the building perimeter according to location, season and orientation. Such understanding is necessary for deciding on solar control strategies in diverse climatic environments, from low to high availability of insolation. This study explores the seasonal changes of solar irradiation on building façades of various orientations at five locations with diverse climates (Reykjavík, London, Athens, Riyadh, Lagos). Solar data collected from the European PVGIS database is used to study the monthly distribution of global solar radiation incident on building façades at cardinal and ordinal orientations, as well as the proportions of its components. The results illuminate the effects of the various factors on insolation. Among others: In all locations, horizontal surfaces receive more annual irradiation than any façade. In summer, east/west facades receive more radiation than south, hence solar protection on those directions is more important than on south. The beam fraction varies seasonally on south and north facades, but not so on east/west. Local atmospheric conditions can offset the importance of latitude on insolation levels and composition. The paper utilises commonly available data to correlate insolation values and types under different factors across the globe, offering a better understanding on insolation for the design of greener buildings.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-16
      DOI: 10.1108/ECAM-05-2021-0409
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Evaluating and selecting the supplier in prefabricated megaprojects using
           

    • Free pre-print version: Loading...

      Authors: Ru Liang , Rui Li , Xue Yan , Zhenzhen Xue , Xin Wei
      Abstract: Prefabricated components sustainable supplier (PCSS) selection is critical to the success of prefabricated projects. However, limited studies have addressed the uncertainty and complexities during the selection process, particularly in multi-criterion group decision-making (MCGDM) circumstances. Hence, the research aims to develop a group decision-making model using a modified fuzzy MCGDM approach for PCSS selection under uncertain situation. The proposed study develops a framework for sorting decisions in PCSS selection by using the hesitant fuzzy technique for order preference by similarity to ideal solution (HF-TOPSIS) method. The maximum consistency (MC) model is used to calculate the weights of decision makers (DMs) based on the cardinality and sequence of decision data. The proposed framework has been successfully applied and illustrated in the case example of CB01 contract section in Hong Kong-Zhuhai-Macao Bridge (HZMB) megaproject. The results show various complicated decision-making scenarios can be addressed through the proposed approach. The MC model is able to calculate the weights of DMs based on the cardinality and sequence of decision data. The research contributes to improving accuracy and reliability decision-making processes for PCSS selection, especially under hesitant and fuzzy situations in prefabricated megaprojects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-16
      DOI: 10.1108/ECAM-09-2021-0793
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Key practices and impact factors of corporate social responsibility
           implementation: Evidence from construction firms

    • Free pre-print version: Loading...

      Authors: Qian Zhang , Bee Lan Oo , Benson Teck-Heng Lim
      Abstract: The ability of construction firms to become more environmentally conscious and socially responsible for their business activities has been touted as the key driver for improved individual firms' competitiveness. This study explores the key dimensions of corporate social responsibility (CSR) practices and their impact factors among construction firms. Through the institutional, stakeholders and self-determination theories, this study proposed a conceptual framework of CSR implementation. For its validation, data were collected from 90 top-tier construction firms using an online survey and analyzed via a two-pronged factor analysis method. The empirical results demonstrate that the CSR practices of construction firms include eight key dimensions, e.g. shareholders' interests, government commitment and CSR institutional arrangement. The three key groups of impact factor of CSR implementation are (1) identified factors (i.e. contractors' perceived importance of CSR practices); (2) external institutional factors (i.e. coercive and normative factors and mimetic factors); and (3) intrinsic factors (i.e. strategic business direction, resource and capability and organizational culture). The research findings inform the practitioners about how to enact, manage and improve firms' socially responsible goals so as to fulfill their key stakeholders' requirements and expectations and thus enhance their legitimacy in construction businesses. This study contributes to CSR knowledge by identifying and empirically demonstrating valid measurements of the key dimensions of practices and impact factors toward CSR implementation by construction firms.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-16
      DOI: 10.1108/ECAM-11-2020-0973
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Construction productivity prediction through Bayesian networks for
           building projects: case from Vietnam

    • Free pre-print version: Loading...

      Authors: Ha Duy Khanh , Soo Yong Kim , Le Quoc Linh
      Abstract: This study aims to focus on exploring the construction productivity of building projects under the influence of potential factors. The three primary purposes are (1) determining critical factors affecting construction productivity; (2) identifying causal relationship and occurrence probability of these factors to develop a Bayesian network (BN) model; and (3) validating the accuracy of predictions from the proposed BN model via a case study. A conceptual framework that includes three performance stages was used. Twenty-two possible factors were screened from a comprehensive literature review and evaluated through expert opinions. Data were collected using a structured questionnaire-based survey and case-study-based survey. The sampling methods were based on non-probability sampling. Worker characteristic-related factors significantly affect labour productivity for a construction task. Construction productivity is dominated by the working frequency of workers (overtime), complexity of the task, level of technology application and accidents. Labour productivity is defined as nearly 50% of the baseline productivity using the BN model created by the caut 2sal relationship and probability of factors. The prediction error of the BN model was 6.6%, 10.0% and 9.3% for formwork (m2/h), reinforcing steel (ton/h) and concrete (m3/h), respectively. The evaluation or prediction of productivity performance has become a necessary topic for research and practice. Managers and practitioners in the construction sector can utilise the outcome of this study to create good productivity management policies for their prospective projects. Worker-related characteristics are dominant among critical factors affecting labour productivity for a construction task; the proposed BN-based predictive model is built based on these critical factors. The BN approach is highly accurate for construction productivity prediction. The findings of this study can fill gaps in the construction management body of knowledge when modelling construction productivity under the effects of multiple factors and using a simple probabilistic graphic tool.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-15
      DOI: 10.1108/ECAM-07-2021-0602
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A critical review of studies on renegotiation within the public-private
           partnerships (PPPs) scheme

    • Free pre-print version: Loading...

      Authors: Xiaowei Feng , Jiming Cao , Guangdong Wu , Kaifeng Duan
      Abstract: Frequent renegotiations within public-private partnership (PPP) have been recognised and affect project efficiency. Literature has focussed on diverse issues associated with renegotiation within PPP, especially in Latin America and Europe. However, a systematic summary what they have already provided appears lacking. Thus, the paper aims to conduct a critical review of publications concerning PPP renegotiation and explore the status quo, future interests and gaps in research. This study carried out a four-phase literature review research framework to identify the quality PPP-renegotiation articles published from 2003 to 2020. Assessing the full articles for eligibility by providing a structured summary including: background; objectives; data sources; study appraisal; results; limitations; conclusions and implications of key findings. After that, filtering papers associated with PPP renegotiation in terms of the structured summary, and a total of 60 research papers were selected in the database of web of science and Scopus for review. Methods adopted by researchers, research topics and theoretical foundations of PPP renegotiation research in different disciplines were identified through content analysis. Amongst the popular research topics identified were renegotiation factors, the outcomes with renegotiations, the framework to deal with renegotiations and contract design dealing with renegotiation based on rigid or flexible contracts. This study contributes to the current body of PPP knowledge by revealing the research trend in the past 20 years. It also points out the directions that the renegotiations of PPP research may go towards in the future. Moreover, this study is very valuable in understanding how governments and concessionaires effectively handle renegotiations.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-15
      DOI: 10.1108/ECAM-09-2021-0790
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Impact of mobilization costs on schedule performance of highway projects

    • Free pre-print version: Loading...

      Authors: Shristy Maharjan , Pramen P. Shrestha , Deekshitha Srirangam
      Abstract: The purpose of this study is to determine whether there is a correlation between mobilization costs and project schedule performance of highway projects. In addition to this, the study will also determine if the mobilization costs are helping small or large highway projects in terms of improving the schedule performance. The data of 206 highway projects were collected from the Department of Transportation of two states with the help of questionnaire survey. The cost, schedule and mobilization costs data were collected. The performance metrics related to construction schedule growth and construction intensity were developed in order to test the research hypotheses: mobilization costs will increase the schedule performance of highway projects. The data were also divided into two groups based on project cost and analyzed to check whether the mobilization costs impact the schedule performance of these highway projects. Spearman's correlation test was conducted to determine the correlation between dependent and independent variables. In addition, a Mann–Whitney test was conducted to determine the difference in medians of construction schedule growth and the construction intensity of these two groups of projects. One major study finding was that there was no strong linear correlation between the mobilization cost percentage and the construction schedule growth and construction intensity of highway projects. However, the study found the projects that have 9% or more mobilization costs had significantly better schedule growth compared to the projects that have less than 9% mobilization costs. When data were analyzed based on the project size, it was found that this pattern was seen only in large projects costing equal to or more than $5 million. This study's findings have very crucial practical implications to state DOTs contract engineers. This study shows that the highway contract engineers need to provide the right amount of mobilization costs to complete their projects on and before schedule. If the correct amount of mobilization costs is not provided to the contractors, the impact of these mobilization costs on reducing the schedule growth will be negligible. The findings of this study will assist public agency decision makers to complete their projects on or before time by including the mobilization costs provision in the contract. The state DOTs can improve their schedule performance by providing enough financial help to the contractors so that they can improve their cash flows and complete projects successfully within the given timeframe. This paper contributes to the existing body of knowledge by validating the impact of mobilization costs on the schedule performance of highway projects. There has been no empirical study conducted prior to this to identify the role of mobilization costs on reducing the schedule growth of highway projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-14
      DOI: 10.1108/ECAM-10-2021-0852
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Integration of risk management within the building information modeling
           (BIM) framework

    • Free pre-print version: Loading...

      Authors: Farzaneh Moshtaghian , Esmatullah Noorzai
      Abstract: This research has been conducted with a view to creating a framework to integrate risk management based on building information modeling (BIM) information. In this research, all the information related to the construction of a residential project including 3D, 4D and 5D BIM models and the execution and control phases information was collected, and the risk list was determined for each activity accordingly. The present study has suggested a framework for risk management in order to optimize project changes. The lack of integration between 3D, 4D and 5D modeling besides execution information is a fundamental problem in many projects. The gap between these two groups of information will lead to improper management and late decisions, eventually imposing unforeseen delays and cost overruns. Risk management by the means of adopting a new approach has been addressed in recent studies using new methods, such as BIM and its associated technologies, some of which were mentioned in the review of theoretical literature in this research.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-09
      DOI: 10.1108/ECAM-04-2021-0327
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Computing the severities of critical onsite assembly risk factors for
           modular integrated construction projects

    • Free pre-print version: Loading...

      Authors: Ibrahim Yahaya Wuni , Geoffrey Qiping Shen , Abdullahi B. Saka
      Abstract: Modular integrated construction (MiC) reengineers the traditional construction process. By introducing factory production and onsite assembly (OA) of modules, MiC reinvents construction projects' uncertainties and risk profiles. The OA stage constitutes the highest end of the MiC delivery and supply chains, where several inherited and symbiotic errors and risk events become realities, negatively impacting the MiC project's success. This study explored the severities of OA risk factors for MiC projects. A comprehensive literature review, consultation of experts and a questionnaire survey of domain experts were conducted to assess the severity of fifteen OA risk factors for MiC projects. The risk severity index was used to compute and rank the severities of critical OA risk factors for MiC projects, followed by proposed mitigation strategies. The study revealed that the top five OA risk factors with the severest impact on MiC projects include modules installation discrepancies and errors, poor cooperation among critical onsite stakeholders, a mismatch between production schedules and site conditions, improper lifting equipment selection for onsite installation and site-fit rework due to discrepancies in drawings. This study is the first to offer some important insights into the uncertainties that could compromise the OA objectives of MiC projects. It discussed risk management strategies for known and unknown OA risks and made a unique contribution to the theory, practice, and praxis of MiC supply chain risk management.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-09
      DOI: 10.1108/ECAM-07-2021-0630
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Adoptions of prefabrication in residential sector in China: agent-based
           policy option exploration

    • Free pre-print version: Loading...

      Authors: Hua Du , Qi Han , Jun Sun , Cynthia Changxin Wang
      Abstract: This study aims to evaluate the effectiveness of different prefabricated construction (PC) policies using a case study in Wuhan, considering the local context. The effectiveness of PC policies is falling behind expectations. The main reason lies in an insufficient understanding of the policy impacts. An agent-based model was built by choosing the residential sector in a typical large city of Wuhan, China, as the study case. Different cost reduction scenarios were introduced for investigating the PC policy effectiveness. The proposed model and simulation approach can be used for other cities and generalized to the whole Chinese PC industry with the potential to include more local policies and corresponding data. Simulation results show that carbon emission reduction will be between 60,000 and 80,000 tons with policy incentives, nearly double that of the no policy intervention scenario. The target of 30% PC in all new buildings by 2026 in China is achievable with the subsidy policies of linear cost reduction, or cost reduction conforms to the learning curve. Simulation results of three kinds of policy show that subsidy policy optimization is necessary regarding reducing the level of subsidy needed. The carbon credit policy is not essential since it has little influence on PC development. Implementing the project procurement restriction policy is not recommended if the scale of development of PC is more important than achieving the development target. This study can help the government and developers make better policy and strategic decisions on PC development and boost the sustainability transition of the construction industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-08
      DOI: 10.1108/ECAM-04-2021-0330
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Rural access programs in Yemen: delay of international funded road
           projects

    • Free pre-print version: Loading...

      Authors: Niyazi Alashwal , Ali Alashwal
      Abstract: Road projects are essential for poverty reduction and the socio-economic development of Yemeni people living in rural areas. Rural access programs, which are mainly sponsored by foreign countries and international organisations, are often delayed. The purpose of this paper is to identify the delay factors of rural road projects with a focus on stakeholder-related factors. The data was collected using a questionnaire survey from 164 participants representing 7 groups, namely, owner, government, donors, consultants, designers, contractors and beneficiaries. The data was analysed using the partial least squares path modelling (PLS-SEM). The results show that the identified factors contribute to 16% of the variance of project delay. Donor and government-related factors have a significant relationship with delay. Further analysis of data using the IPMA procedure in PLS-SEM revealed the top factors contributing to delay, which are project selection criteria imposed by donors, government bureaucracy, decision-making process, weak laws and guidelines that regulate the work of project implementation units, procurement procedures, delay of payment to contractor and delay of transactions. The timely completion of rural road projects can have a positive impact on the current and future rural access programs aiming to reduce poverty and increase access to health and education services of over 70% of Yemeni people living in rural areas. Such programs will reduce the misfortune of displaced people due to the ongoing war in the country.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-08
      DOI: 10.1108/ECAM-09-2021-0818
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Knowledge transfer among members within cross-cultural teams of
           international construction projects

    • Free pre-print version: Loading...

      Authors: Qianwen Zhou , Shou Chen , Xiaopeng Deng , Amin Mahmoudi
      Abstract: This paper aims to explore the key factors affecting knowledge transfer within cross-cultural teams in international construction projects from three levels: individual factors, team factors and knowledge characteristics. It also provides a comprehensive framework to examine how trust, cultural distance, team identification, knowledge tacitness and complexity and members' transfer willingness impact knowledge transfer effectiveness within cross-cultural teams. A conceptual model and 16 hypotheses were put forward through the literature review and pilot investigation. This study used structural equation modeling to examine how factors affect the effectiveness of knowledge transfer within cross-cultural teams based on the questionnaire data of samples from Chinese international construction projects. The findings show that affect-based trust and team identification positively affect the willingness to contribute knowledge. Conversely, knowledge tacitness, knowledge complexity and cultural distance negatively influence contribute willingness. Moreover, affect-based trust, cognition-based trust and team identity positively affect receive willingness, while cultural distance negatively impacts receive willingness. Additionally, affect-based and cognition-based trust, knowledge tacitness and complexity affect transfer effectiveness through the full mediation of transfer willingness, while cultural distance and team identity affect transfer effectiveness through the partial mediation of transfer willingness. On the one hand, this research provides a holistic framework for factors affecting knowledge transfer within cross-cultural teams from three levels: individual factors, team factors and knowledge characteristics. On the other hand, the paper gives other researchers in international project management the enlightenment of focusing on members' cultural structure and the cross-cultural training of the team. This study offers the direction for cross-cultural team managers to formulate helpful approaches for knowledge transfer and assist corporate leaders in taking integral control measures to enhance knowledge transfer effectiveness within the team. This study provides other researchers with a comprehensive understanding of the key factors affecting knowledge transfer within cross-cultural teams in international construction projects and insight for further research on project management and knowledge management.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-08
      DOI: 10.1108/ECAM-09-2021-0838
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Quantifying the predictability and preventability of conflicts between
           construction project parties

    • Free pre-print version: Loading...

      Authors: Mohammad Hadi Charkhakan , Gholamreza Heravi
      Abstract: Although several studies have aimed to present models to predict conflict outcomes, fewer methods have been developed to analyze conflict manageability and provide management strategies based on prediction models. This research pitches into the manageability analysis of conflicts occur during the implementation of a proposed change in construction projects. In this way, a framework has been developed by defining two parameters: the predictability index and the preventability index. Within this framework, the predictability index determines how many outcomes of the prediction model can be used for conflict management based on the degree of clarity. The preventability index demonstrates how preventive measures for conflict management can be identified. Eventually, three preventive measures can be determined: (1) identifying weaknesses of decision-making patterns and organizational culture, (2) identifying events that may be prevented using soft skills and (3) identifying differences among similar change-implementation scenarios and evaluating causes of the differences. To demonstrate the capabilities of proposed framework, a practical example has been analyzed. The results show that the behavior of the project parties can be psychologically analyzed, and psychological conflicts can be distinguished from technical conflicts. Moreover, identifying the weaknesses of parties' decision-making patterns and their organizational culture is the most effective measure to prevent the conflicts. This research contributes to the construction body of knowledge by quantifying the predictability and preventability of conflicts between the project parties in a construction project based on: (1) the certainty level of the conflict occurrence and (2) the level of alignment between predicted outcomes of the conflict occurrence and the issued change request and/or change order.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-08
      DOI: 10.1108/ECAM-11-2019-0651
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Enablers for the adoption and use of BIM in main contractor companies in
           the UK

    • Free pre-print version: Loading...

      Authors: Reyhaneh S. Shojaei , Kwadwo Oti-Sarpong , Gemma Burgess
      Abstract: Widespread efforts to promote the use of building information modelling (BIM) as part of the construction industry transformation agenda in many advanced countries are yet to reach the wished-for effects. While there are various studies on the factors influencing BIM adoption, empirical evidence detailing how construction companies can successfully adopt BIM in their organisations remains scarce. This paper identifies and describes how enabling factors are implemented by large UK contractor firms to transform their organisations using BIM for projects. A qualitative exploratory approach is employed in this paper. Data are gathered through 42 semi-structured interviews with professionals in strategic and management roles in construction companies in the UK, followed by case studies of five leading main contractor companies selected to provide examples of how they implemented the identified enablers. This research identifies and describes six key enabling factors that influence successful BIM adoption and implementation, namely, committed leadership and management; a digital transformation strategy with realistic objectives; building a capable supplier network; building trust-based relationships with clients; upskilling employees; and establishing a robust structure for effective collaboration and communication. Nine practical recommendations are provided to guide construction firms in taking steps to adopt and use BIM in their organisations and for their projects. This study provides empirical evidence detailing how key enablers are implemented towards successful BIM adoption and use by large UK contractors.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-04
      DOI: 10.1108/ECAM-07-2021-0650
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Complex network-based research on organization collaboration
           and cooperation governance responding to COVID-19

    • Free pre-print version: Loading...

      Authors: Lin Yang , Jiaming Lou , Junuo Zhou , Xianbo Zhao , Zhou Jiang
      Abstract: With multiple-related organizations, worldwide infections, deep economic recession and public disorder, and large consumption amount of anti-epidemic resources, the coronavirus disease 2019 (COVID-19) has been defined as a public health emergency of international concern (PHEIC). Nowadays, Wuhan has recovered from the pandemic disaster and reentered normalization. The purposes of this study are to (1) summarize organization collaboration patterns, successful experience and latent defects under across-stage evolution of Wuhan's cooperation governance mode against the pandemic, and on the basis, (2) reveal how the COVID-19 development trends and organizations' collaborative behaviors affected each other. Detailed content analysis of online news reports covering COVID-19 prevention and control measures on the website of Wuhan Municipal Government was adopted to identify organizations and their mutual collaborative interrelationships. Four complex network (CN) models of organization collaboration representing the outbreak, preliminary control, recession and normalization stages, respectively, were established then. Time-span-based dynamic parameter analyses of the proposed networks, comprising network cohesiveness analysis and node centrality analysis, were undertaken to indicate changes of global and local characteristics in networks. First, the definite collaborative status of Wuhan Headquarters for Pandemic Prevention and Control (WHPPC) has persisted throughout the period. Medical institutions and some other administrations were the most crucial participants collaborating with the WHPPC. Construction-industry organizations altered pandemic development trends twice to make the situation controllable. Media, large-scale enterprises, etc. set about underscoring themselves contributions since the third stage. Grassroots cadres and healthcare force, small and medium-sized enterprises (SMEs), financial institutions, etc. were essential collaborated objects. Second, four evolution mechanisms of organization collaboration responding to the COVID-19 in Wuhan has been proposed. First, universality of Wuhan-style governance experience may be affected. Second, the stage-dividing process may not be the most appropriate. Then, data source was single and link characteristics were not considered when modeling. This study may offer beneficial action guidelines to governmental agencies, the society force, media, construction-industry organizations and the market in other countries or regions suffering from COVID-19. Other organizations involved could also learn from the concluded organizations' contributions and four evolution mechanisms to find improvement directions. This study adds to the current theoretical knowledge body by verifying the feasibility and effectiveness of investigating cooperation governance in public emergencies from the perspectives of analyzing the across-stage organization collaboration CNs.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-04
      DOI: 10.1108/ECAM-08-2021-0731
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Improved biogeography-based optimization algorithm for lean production
           scheduling of prefabricated components

    • Free pre-print version: Loading...

      Authors: Juan Du , Yan Xue , Vijayan Sugumaran , Min Hu , Peng Dong
      Abstract: For prefabricated building construction, improper handling of the production scheduling for prefabricated components is one of the main reasons that affect project performance, which causes overspending, schedule overdue and quality issues. Prior research on prefabricated components production schedule has shown that optimizing the flow shop scheduling problem (FSSP) is the basis for solving this issue. However, some key resources and the behavior of the participants in the context of actual prefabricated components production are not considered comprehensively. This paper characterizes the production scheduling of the prefabricated components problem into a permutation flow shop scheduling problem (PFSSP) with multi-optimization objectives, and limitation on mold and buffers size. The lean construction principles of value-based management (VBM) and just-in-time (JIT) are incorporated into the production process of precast components. Furthermore, this paper applies biogeography-based optimization (BBO) to the production scheduling problem of prefabricated components combined with some improvement measures. This paper focuses on two specific scenarios: production planning and production rescheduling. In the production planning stage, based on the production factor, this study establishes a multi-constrained and multi-objective prefabricated component production scheduling mathematical model and uses the improved BBO for prefabricated component production scheduling. In the production rescheduling stage, the proposed model allows real-time production plan adjustments based on uncertain events. An actual case has been used to verify the effectiveness of the proposed model and the improved BBO. With respect to limitations, only linear weighted transformations are used for objective optimization. In regards to research implications, this paper considers the production of prefabricated components in an environment where all parties in the supply chain of prefabricated components participate to solve the production scheduling problem. In addition, this paper creatively applies the improved BBO to the production scheduling problem of prefabricated components. Compared to other algorithms, the results show that the improved BBO show optimized result. The proposed approach helps prefabricated component manufacturers consider complex requirements which could be used to formulate a more scientific and reasonable production plan. The proposed plan could ensure the construction project schedule and balance the reasonable requirements of all parties. In addition, improving the ability of prefabricated component production enterprises to deal with uncertain events. According to actual production conditions (such as the occupation of mold resources and storage resources of completed components), prefabricated component manufacturers could adjust production plans to reduce the cost and improve the efficiency of the whole prefabricated construction project. The value of this article is to provide details of the procedures and resource constraints from the perspective of the precast components supply chain, which is closer to the actual production process of prefabricated components. In addition, developing the production scheduling for lean production will be in line with the concept of sustainable development. The proposed lean production scheduling could establish relationships between prefabricated component factory manufacturers, transportation companies, on-site contractors and production workers to reduce the adverse effects of emergencies on the prefabricated component production process, and promote the smooth and efficient operation of construction projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-03
      DOI: 10.1108/ECAM-04-2021-0311
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • The gold standard: developing a maturity model to assess
           collaborative scheduling

    • Free pre-print version: Loading...

      Authors: Natalie M. Scala , Min Liu , Thais da Costa Lago Alves , Vincent Schiavone , Dominique Hawkins
      Abstract: The overall contribution of this work is to provide a usable maturity model for collaborative scheduling (CS) that extends the literature, identifies inconsistencies in schedule development, and improves collaboration in the construction industry. Via subject matter expert elicitation and focus groups, the maturity model establishes five pillars of collaboration—scheduling significance, planners and schedulers, scheduling representation, goal alignment with owner, and communication. The maturity model is then validated through iterative feedback and chi-squared statistical analysis of data obtained from a survey. The five pillars are tied to the literature and previous work in CS. The analysis shows that current industry projects are not consistent in collaboration practice implementation, and the maturity model identifies areas for collaboration improvement. The study's contributions to the body of knowledge are (1) developing a maturity model-based approach to define and measure the current level of collaboration and (2) discovering the level of consistency in scheduling collaboration practice implementation. The findings provide a benchmark for self-evaluation and peer-to-peer comparison for project managers. The model is also useful for project managers to develop effective strategies for improvement on targeted dimensions and metrics. The construction engineering and management (CEM) literature does not contain targeted models for scheduling collaboration in the context of maturity and, broadly speaking, neither does the literature at large. The literature also lacks actionable items as presented for the maturity model for collaborative scheduling (MMCS).
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-03
      DOI: 10.1108/ECAM-07-2021-0609
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Research on the influencing factors of knowledge transfer among
           construction workers based on social cognitive theory

    • Free pre-print version: Loading...

      Authors: Shan Zhou , Luping Qin , Jixuan Zhang , Xinying Cao
      Abstract: This paper aims to employ social cognitive theory (SCT) as a theoretical framework to investigate the influencing factors affecting the knowledge transfer effectiveness of construction workers in China. The mediating role of their knowledge transfer willingness is also assessed. A questionnaire on knowledge transfer among Chinese construction workers is designed and subsequently analyzed by structural equation modeling (SEM), with a total sample of 288 construction workers. The SEM results show that the knowledge self-efficiency, blood and geographic relationships, and trust relationship promote knowledge transfer willingness and positively influence the knowledge transfer effectiveness of construction workers. However, the effect of organizational culture on knowledge transfer willingness and effectiveness is nonsignificant. The results are conducive to managers and governments formulating strategies to optimize the learning mechanism of construction workers and facilitate their obtaining of resources from the project, thus easing skill shortages and promoting the transformation of construction workers into industrial workers. This paper innovatively proposes blood and geographic relationships as research variables, expanding their scope. Furthermore, SCT is applied to enable future research to better understand individual knowledge transfer behavior from both personal and environmental perspectives.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-03
      DOI: 10.1108/ECAM-07-2021-0621
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Studies on the success criteria and critical success factors for mega
           infrastructure construction projects: a literature review

    • Free pre-print version: Loading...

      Authors: Ting Wang , Junyan Xu , Qinghua He , Albert P.C. Chan , Emmanuel Kingsford Owusu
      Abstract: This study intends to review studies on the success criteria and critical success factors (CSFs) for mega infrastructure construction projects (MICPs) from journal articles between 2000 and 2018 to (1) identify the publication trend of success criteria and CSFs for MICPs; (2) explore distributions of selected papers, including the distribution of journals, authors’ origin/country and publications by country or region focus; and (3) summarize the findings of success criteria and CSFs studies of MICPs. A methodical and systematic analysis of 38 selected journal articles was conducted using descriptive analysis to obtain the annual trend of publications, distributions of publication sources, contributors’ origin/country, regions/countries of research focus, methods involved in publications and thematic analysis to identify and categorize success criteria and CSFs for MICPs. Australia, the USA, UK, China and Hong Kong had been the leading contributors for publications on success criteria and CSFs for MICPs; meanwhile, China, Australia and the UK have been the countries of focus for most studies on this specific topic. This review identified 20 success criteria grouped into 5 constructs and 36 CSFs grouped into 5 categories and, respectively, integrated them into two conceptual frameworks. The top five CSFs were adequate resource availability, partnering/relationships with key stakeholders, adequate communication and coordination among related parties, public support or acceptance and clear strategic vision. Three implications, namely, evaluation indicators, relationships between CSFs and the success of MICPs and human-related factors, are highlighted in future research. The identified success criteria and CSFs provide a basis for evaluating the success possibility of MICPs and serve to identify areas for further improvement. Additionally, the CSFs checklist and framework have been established, which could help to conduct further empirical studies. Finally, the holistic analysis identifies gaps in the body of knowledge, revealing avenues for future research.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-03
      DOI: 10.1108/ECAM-12-2020-1042
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Assessing the impact of project brief clarity using project definition
           rating index tool and system dynamic

    • Free pre-print version: Loading...

      Authors: Ali Vahabi , Farnad Nasirzadeh , Anthony Mills
      Abstract: Briefing in a project delivery context is one of the most critical factors in the project success. It defines client requirements, translates these needs into design criteria and generates a design concept. A lack of briefing clarity is one of the main causes of design changes and may lead to project cost and time overruns. This research aims to assess the brief clarity and its influence on project cost and duration. This research created the PDRI-SD technique by utilising a system dynamic (SD) approach and project definition rating index (PDRI) tool to model the complex system of project briefing and associated variables. Stock and flow diagrams of the main subsystems including the briefing, the detailed design and the construction process, were developed to assess the influence of brief clarity on project cost and time. The PDRI was adopted to measure the briefing clarity and apply in the model. PDRI-SD was then tested in Australian building refurbishment projects to assess the model's effectiveness. The simulation results indicated that a minor reduction of the lack of clarity throughout the initial briefing process could significantly mitigate unpredicted delay and cost overruns during the detailed design and the construction stage. This research contributed to the existing body of knowledge by developing an effective technique to measure the impact of lack of brief clarity on project cost and time performance. PDRI-SD can also aid project clients to predict the influence of the initial defined brief on the detailed design and construction process using the historical data of similar previous projects. It provides clients with feedback, indicating whether the brief meets project requirements or whether parts of the project brief require more clarification/rectification before the project handover to the builders.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-02
      DOI: 10.1108/ECAM-07-2021-0618
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A multiproject scheduling and resource management model in projects
           construction

    • Free pre-print version: Loading...

      Authors: Esmail Cheraghi , Shakib Zohrehvandi , Mario Vanhoucke , Babak Mohamadpour Tosarkani
      Abstract: This research presents a multiproject scheduling and resource management (MPSRM) model that includes an M/M/c/n queue system, a p-hub median model, a parallel machine scheduling and a hub location problem solution method. This research aims to design a project network and then sequence raw materials delivery to hub factories. This research is implemented as a case study in construction and industrial company. It considers several mines to supply raw materials for production in hub factories. In the sequencing phase, a parallel mine scheduling problem specifies the delivery of raw materials to hub factories. Furthermore, a multisource project scheduling model is studied and designed for building project-oriented companies. The results suggest that the proposed MPSRM model in this study significantly reduces project transportation costs. Therefore, creating accurate planning in projects, especially in construction projects where transportation plays an important role, can help reduce time and costs. Researchers, project managers and those dealing with projects can use this model to exploit their projects. When the number of construction projects in a construction company increases in a region, choosing an appropriate strategy to supply resources and raw materials becomes very important in terms of profit and loss and project completion as scheduled. An increase in transportation demands alongside the economic development on the one hand and providing competitive transportation services, on the other hand, have increasingly spotlighted the significance of hub networks in transportation systems. In addition, in this research, there is no suitable access road from the mines to the project sites, and considering the workload, if any of the projects become a hub, a proper road should be built. To the best of the knowledge, there is no outstanding research in which a p-hub median location problem by considering queuing model and different transportation modes and a parallel machine scheduling problem are studied simultaneously.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-01
      DOI: 10.1108/ECAM-02-2021-0177
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Measuring competitiveness with data-driven principal component analysis:
           a case study of Chinese international construction companies

    • Free pre-print version: Loading...

      Authors: Hui Guo , Weisheng Lu
      Abstract: Defining and measuring competitiveness has been a major focus in the business and competition literature over the past decades. The paper aims to use data-driven principal component analysis (PCA) to measure firm competitiveness. A “3Ps” (performance, potential, and process) firm competitiveness indicator system is structured for indicator selection. Data-driven PCA is proposed to measure competitiveness by reducing the dimensionality of indicators and assigning weights according to the endogenous structure of a dataset. To illustrate and validate the method, a case study applying to Chinese international construction companies (CICCs) was conducted. In the case study, 4 principal components were derived from 11 indicators through PCA. The principal components were labeled as “performance” and “capability” under the two respective super-components of “profitability” and “solvency” of a company. Weights of 11 indicators were then generated and competitiveness of CICCs was finally calculated by composite indexes. This study offers a systematic indicator framework for firm competitiveness. The study also provides an alternative approach to better solve the problem of firm competitiveness measurement that has long plagued researchers. The data-driven PCA approach alleviates the difficulties of dimensionality and subjectivity in measuring firm competitiveness and offers an alternative choice for companies and researchers to evaluate business success in future studies.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-01
      DOI: 10.1108/ECAM-04-2020-0262
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Evolution modeling of stakeholder performance on relationship management
           in the dynamic and complex environments of megaprojects

    • Free pre-print version: Loading...

      Authors: Jin Xue , Geoffrey Qiping Shen , Xiaomei Deng , Adedayo Johnson Ogungbile , Xiaoling Chu
      Abstract: Relationship management evolves with dynamic and complex environments of megaprojects. However, studies on the longitudinal measurement of relationship management performance for each stakeholder in dynamic and complex project environments are lacking. The purpose of this research is to propose an NK-network evolution model to evaluate stakeholder performance on relationship management in the development of megaprojects. The model input includes the stakeholder-associated issues and stakeholders' relational strategies, the co-effects of which determine the internal effects of relationship management in megaprojects. The model processing simulates the stakeholder performance of relationship management under the dynamic and complex nature of megaprojects. The NK model shows the dynamic stakeholder interactions on relationship management, whereas the network model presents the complex stakeholder structures of the relationships between stakeholders and relevant issues. The model output is the evolution graph to reveal the weak stakeholder performance on relationship management in the timeline of the project duration. The research finding reveals that all stakeholders experience the plunge of stakeholder performance of relationship management at the decision-making moment of the planning stage. Construction, environmental and pressure groups may experience the hardship of relationship management at the start of the construction stage. The government is likely to suffer difficulties in relationship management in the late construction stage. Local industry groups would face challenges in relationship management in the middle of the construction stage and handover stage. The research provides a useful approach to measuring weak moments of relationship management for each stakeholder in various project phases, considering the dynamic and complex environments of megaprojects. The proposed model extends the current knowledge body on how to make project stakeholder analysis by modelling dynamic and complex environments of megaprojects, with bridging the knowledge domains of evolution modeling techniques and network methods.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-01
      DOI: 10.1108/ECAM-06-2021-0504
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Sharp schedule compression in urgent emergency construction projects via
           activity crashing, substitution and overlapping: a case study of and 
           Hospital projects in Wuhan

    • Free pre-print version: Loading...

      Authors: Hui Lu , Hongwei Wang , Dihua Yu , Jian Ye
      Abstract: To meet the rapidly increasing demand for medical treatment during the outbreak of COVID-19, Huoshengshan and Leishenshan Hospital are rapidly built (9–12 days) in Wuhan. These two urgent emergency projects are unprecedented. In general, substantial literature suggests that the possibility of shortening a schedule by more than a quarter of its original duration is implausible. By contrast, the two projects had successfully compressed the schedules from months and years to about ten days. This study aims to investigate how this was done and provide references for future projects. The study uses qualitative case study techniques to analyze the project practices in two urgent emergency projects. Data were gathered through semi-structured interviews and archival research. During interviews, interviewees were asked to describe the project practices adopted to overcome the challenges and freely share their experiences and knowledge. The results illustrate that a high degree of schedule compression is achievable through tactful crashing, substitution and overlapping applications. The successful practices heavily rely on the high capacity of participants and necessary organization, management and technology innovations, such as three-level matrix organizational structure, reverse design method, site partition, mock-up room first strategies and prefabricated construction technology. For instance, the reverse design method is one of the most significant innovations to project simplification and accelerate and worthy of promotion for future emergency projects. The empirical findings are significant as they evoke new thinking and direction for addressing the main challenges of sharp schedule compression and provide valuable references for future emergency projects, including selecting high-capacity contractors and replacing the conventional design methods with reverse design. Substantial studies indicate that the maximum degree of schedule compression is highly unlikely to exceed 25%, but this study suggests that sharp compression is possible. Although with flaws in its beauty (i.e. compressing schedule at the expense of construction cost and quality), it is also a breakthrough. It provides the building block for future research in this fertile and unexplored area.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-01
      DOI: 10.1108/ECAM-07-2021-0654
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Evaluating construction delays using productivity-based resource
           reallocation for economic feasibility

    • Free pre-print version: Loading...

      Authors: Chijoo Lee
      Abstract: Work crew productivity and the application of limited resources are necessary elements in construction duration delay analysis. This study thus proposes a method to analyze construction delays and resource reallocation based on work crew productivity and resource constraints. The study also presents an economic feasibility analysis that maximizes economic effect by reducing construction duration, the cost of resource reallocation, delay liquidated damages (DLDs) and incentives for reducing contractual duration. The proposed method involved three steps. First, work crew characteristics such as productivity, unit price and workload helped analyze delay information, including delay duration, reducible duration and daily reduced cost. Next, a goal programming method assessed resource reallocation based on the priority (as determined by decision-makers) of each constraint condition, such as the available number of workers, cost, goal workload and statutory working hours. Lastly, the level of reallocation was analyzed based on the results of the economic feasibility analysis and decision-makers’ delay attitudes. A case study was performed to test the proposed method's applicability. Its involved sensitivity analysis indicated proposing to decision-makers a scenario based on the prioritization of economic feasibility. The proposed method's applicability proved high for decision-makers, as they can determine whether to reduce construction duration per the proposed data. The proposed method's main contribution is the reallocation of resources to reduce construction duration based on work crew productivity and the prioritization of limited resources. The proposed method can analyze the differences in productivity between the plan and actual progress, as well as calculate the necessary number of workers. Decision-makers can then reduce the appropriate level of contractual duration based on their own delay attitude, constraint condition prioritization and results from daily economic feasibility analyses.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-01
      DOI: 10.1108/ECAM-09-2019-0503
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Multidimensional drivers: exploring contractor rule violations in the
           construction industry

    • Free pre-print version: Loading...

      Authors: Junying Liu , Yuqing Wang , Zhixiu Wang
      Abstract: This research aims to build a three-tiered driver system that entices contractor rule violations and explores the importance and the relationships among these drivers, hence providing theoretical support for the contractor rule violations governance. A literature review based on fraud diamond theory identified drivers from Pressure, Opportunity, Rationalization and Capability that drive contractor rule violations. In the Chinese context, through feedback, discussion and analysis of semistructured interviews with ten experts, an improved three-tiered driver system was drafted. Based on this system, a survey was conducted and scored with experts to provide the data for this research. The decision-making trial and evaluation laboratory (DEMATEL) method was used to determine relationships and influences between factors, and the DEMATEL-based analytic network process method was used to weigh these factors. This paper systematically studied the drivers of contractor rule violations, specifically, the results showed that pressure had an important driving effect across the driver system, and those five factors – poor cultural atmosphere, weak internal control, prior experience, moral disengagement and information asymmetry – had the most influence on contractor rule violations. The results also indicated the strong effect pressure has on enticing rule violations and revealed that culture atmosphere and internal company governance played crucial roles in the occurrence of rule violations. This study provided construction practitioners with a robust tool to analyze the drivers of contractor rule violations. The rule violation drivers in the construction practice scenes identified in this study can provide more direct and effective violation-related guidance for contractors, regulators and the industry. Based on the new perspective of fraud diamond, this paper systematically bulit a three-tiered driver system combining theory with practice. This study contributed to understand the driver mechanism of contractor rule violations especially the importance of internal factors of contractors, which provided theory reference for compliance governance of construction industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-02-01
      DOI: 10.1108/ECAM-10-2021-0928
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Recognizing workers' construction activities on a reinforcement processing
           area through the position relationship of objects detected by faster R-CNN
           

    • Free pre-print version: Loading...

      Authors: Jiaqi Li , Guangyi Zhou , Dongfang Li , Mingyuan Zhang , Xuefeng Zhao
      Abstract: Recognizing every worker's working status instead of only describing the existing construction activities in static images or videos as most computer vision-based approaches do; identifying workers and their activities simultaneously; establishing a connection between workers and their behaviors. Taking a reinforcement processing area as a research case, a new method for recognizing each different worker's activity through the position relationship of objects detected by Faster R-CNN is proposed. Firstly, based on four workers and four kinds of high-frequency activities, a Faster R-CNN model is trained. Then, by inputting the video into the model, with the coordinate of the boxes at each moment, the status of each worker can be judged. The Faster R-CNN detector shows a satisfying performance with an mAP of 0.9654; with the detected boxes, a connection between the workers and activities is established; Through this connection, the average accuracy of activity recognition reached 0.92; with the proposed method, the labor consumption of each worker can be viewed more intuitively on the visualization graphics. With this proposed method, the visualization graphics generated will help managers to evaluate the labor consumption of each worker more intuitively. Furthermore, human resources can be allocated more efficiently according to the information obtained. It is especially suitable for some small construction scenarios, in which the recognition model can work for a long time after it is established. This is potentially beneficial for the healthy operation of the entire project, and can also have a positive indirect impact on structural health and safety.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-01-28
      DOI: 10.1108/ECAM-04-2021-0312
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Integrated project delivery in the Nigerian construction sector:
           an unexplored approach from the stakeholders’ perspective

    • Free pre-print version: Loading...

      Authors: Andrew Ebekozien , Clinton Ohis Aigbavboa , Marvelous Aigbedion , Iliye Faith Ogbaini , Ibeabuchi Lawrence Aginah
      Abstract: Over the past years, high waste and inefficiencies in the construction industry may have contributed to many projects failing to meet clients’ expectations. Among the new project delivery mechanisms to tackle this problem is integrated project delivery (IPD). IPD has been proved as a mechanism that increases stakeholders’ collaboration at the early stage and delivers the highest value-for-money projects. In Nigeria, research regarding practitioners in the application of IPD in construction delivery is scarce. Thus, this study aims to investigate the level of awareness, issues hindering the implementation of IPD and proffer solutions to promote the use of IPD in project delivery. Qualitative research was adopted. Twenty virtual interviews via Zoom and Whatsapp Videos were used to collect data from the selected participants and analysed via a thematic method. This is because of the unexplored dimension of the issues. Results show that practitioners are aware of IPD but lax in the application. The emerged issues hindering the adoption and implementation of IPD were grouped into technological, legal, financial and cultural in Nigeria’s context. This study is restricted to the relevance and hindrances facing the usage of IPD in the Nigerian built environment. The study proffers solutions to promote the use of IPD in the built environment via a qualitative approach. This paper will contribute towards stirring Nigeria’s stakeholders to create an enabling environment within the industry via IPD friendly policies and promote the use of IPD on construction projects. This paper is one of the few papers that attempted to uncover issues that hinder the use of IPD on construction projects in Nigeria via a qualitative approach.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-01-25
      DOI: 10.1108/ECAM-09-2021-0823
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Application framework for safety-centric construction acceleration
           planning

    • Free pre-print version: Loading...

      Authors: Samin Mahdavian , Ming Lu , Estacio Pereira
      Abstract: Previous research regarding shaping factors and major causes behind accidents in the construction field is reviewed. In particular, a hypothetical model is established to correlate activity time, cost and safety in the context of construction activity acceleration planning. Two demonstration cases are presented to illustrate the proposed theoretical model in the context of critical activity expedition planning. Further, a third case uses a 100-activity project to perform the global level total project time and cost analysis, identifying specific activity acceleration plans that would materialize the shortened total project time at the lowest total project cost. This research proposes a safety-centric application framework to guide construction acceleration planning at both activity and project levels while taking sufficient preventive measures against safety hazards and accidents. As planning construction acceleration by factoring in safety constraints inevitably drives up cost, it is imperative to control increases in activity costs at the local level in connection with schedule acceleration planning while at the same time not compromising on safety. This research also addresses this critical question through performing global level total project time and cost analysis. An application framework is proposed for guiding a planner through identifying accident shaping factors, obeying schedule acceleration rules and accounting for safety-related costs in attempts to mitigate hazardous situations on-site at both activity level (local) and project level (global), resulting in (1) minimizing the increase of total project cost in schedule acceleration while at the same time not compromising on safety at individual activities; (2) producing specific execution plans on each individual activity in terms of the amount of time to crash and the associated activity cost. This study is original in developing theories and methods for evaluating the impact of safety constraints upon construction time and cost in activity acceleration planning and project time-cost analysis. The research fills a gap in knowledge in terms of how to factor in sufficient safety constraints while achieving project time and cost objectives on construction acceleration planning at both activity and project levels.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-01-24
      DOI: 10.1108/ECAM-03-2021-0195
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Mitigation of contractual breaches in international construction joint
           ventures under conditions of absent legal recourse: case studies from Iran
           

    • Free pre-print version: Loading...

      Authors: Ali Mohammad Mirzaee , M. Reza Hosseini , Igor Martek , Payam Rahnamayiezekavat , Mehrdad Arashpour
      Abstract: Legal remedies are incorporated into international construction joint ventures (ICJVs) to mitigate contractual breaches. The effectiveness of remedies is predicated on two conditions; the comprehensiveness of the contract and its enforceability within the jurisdiction of interpretation. Relational-related weaknesses contribute to contracting parties placing a premium on the contract's capacity for mediating the relationship. However, contracts are not always enforceable. This study aims to examine means by which joint venture relational governance can be maintained under conditions of minimal legal recourse. A relational contracting (RC) theory was used as the theoretical underpinning of the paper. Data were collected and analyzed following a multiple-case study approach from case projects in which ICJVs' was used. The findings reveal (1) 17 relational and contractual governance problems; the main six being contractual flexibility, contractual joint venture system, contract reviewing, project conflict, national culture and leader–follower transgressions; (2) relational and contractual governance problems are managed differently, depending on financing sources and partners' national culture; and (3) that a developed RC-based framework comprising four stages is able to facilitate relational and contractual governance in ICJVs. This study is novel in providing a guided approach to developing non-legal remedies for the mitigation of contractual breaches in ICJVs, grounded in theory and contextualized for the construction sector.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-01-21
      DOI: 10.1108/ECAM-08-2021-0751
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • What leads to the high capital cost of prefabricated construction in
           China: perspectives of stakeholders

    • Free pre-print version: Loading...

      Authors: Yu Liu , Rui-Dong Chang , Jian Zuo , Feng Xiong , Na Dong
      Abstract: Prefabricated construction (PC) will play a vital role in the transformation and upgrading of the construction industry in the future. However, high capital cost is currently one of the biggest obstacles to the application and promotion of PC in China. Clarifying the factors that affect the PC cost from the perspectives of stakeholders and exploring key cost control paths help to achieve effective cost management, but few studies have paid enough attention to this. Therefore, this research aims to explore the critical cost influencing factors (CIFs) and critical stakeholders of PC based on stakeholder theories and propose corresponding strategies for different stakeholders to reduce the cost of PC. Based on the stakeholder theory and social network theory, literature review and two rounds of expert interviews were used to obtain the stakeholder-associated CIFs and their mutual effects, then the consistency of the data was tested. After that, social network analysis was applied to identify the critical CIFs, critical interaction and key stakeholders in PC cost control and mine the influence conduction paths between CIFs. The results reveal that the cognition and attitude of developer and relevant standards and codes are the most critical CIFs while the government, developer and contractor are crucial to the cost control of PC. The findings further suggest that measures should be taken to reduce the transaction costs of the developer, and the contractor ought to efficiently apply information technology. Moreover, the collaborative work between designer and manufacturer can avoid unnecessary cost consumption. This research combines stakeholder management and cost management in PC for the first time and explores the effective cost control paths. The research results can contribute to clarifying the key points of cost management for different stakeholders and improving the cost performance of PC projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-01-19
      DOI: 10.1108/ECAM-06-2021-0538
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Gauging the impact of personal lifestyle, indoor environmental quality and
           work-related factors on occupant productivity when working from home

    • Free pre-print version: Loading...

      Authors: Xingzhou Guo , Hongyue Wu , Yunfeng Chen , Yuan Chang , Yibin Ao
      Abstract: Personal lifestyle, work environments and work-related factors can significantly affect occupant productivity. Although many studies examine the affecting factors of occupant productivity in offices, explorations for the home-based work environment, which is designed mainly for living purposes, are still scarce. Moreover, current pandemic has made work from home a new normal for workers around the world. Therefore, it is important to identify key causal factors of occupant productivity when working from home. This study employed descriptive analysis and regression analysis method to explore the relationship among personal lifestyle, indoor environmental quality and work-related factors toward occupant productivity. A questionnaire including a comprehensive list of key measures was designed and 189 valid responses were collected from more than 13,000 participants. Results show that a healthy lifestyle, the perceived satisfaction of visual and acoustic environment, communication, interest in work, workload, flexible schedule and privacy positively affect occupant productivity when working from home, while coffee consumption, outside views and windows have negative effect. Opportunities to enhance occupants' home-based work productivity include developing a healthy lifestyle by taking advantage of flexible schedule, equipping a working room at home with advanced and intelligent environment control systems, and improving communication, workload and schedule by changing the policy of companies.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-01-17
      DOI: 10.1108/ECAM-10-2021-0941
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Effect of photovoltaic installation power and façade glazing ratio
           on the energy performance of a nursery building

    • Free pre-print version: Loading...

      Authors: Janusz Marchwiński , Karolina Kurtz-Orecka
      Abstract: The aim of the research is to determine the influence of photovoltaic (PV) installation and the share of façade glazing on the energy profile of nursery buildings in the Baltic Sea region, as well as defining the most favorable configuration in terms of energy efficiency. The article provides comparative calculations of energy performance indicators (Ep, Ed, Eu) and CO2 emissions (mCO2) made for the defined model of the nursery. It includes calculations concerning energy performance of the building, depending on its PV power (0–60 kWp), PV efficiency (100 and 85%) and façade glazing ratio (GR = 25%, 50% and 75%). The results of the research indicate that an increase in the PV power exerts proportional impact on the reduction of the Ep and Ed indicators, as well as on the CO2 emissions. Only low GR values (25%) reduce the Eu indicator significantly. Decrease in high range of GR values (over 50%) does not provide proportional effects. In the variant: 60 kWp (100% efficiency) with GR = 25%, the biggest share (99.5%) of RES was obtained. This proves that the concept of energy independent nursery buildings is feasible and reasonable in the examined location. Designing buildings towards environmental neutrality requires laborious pre-design conceptual work before developing the right solutions. The set of results of the relationship between the variables of the building's envelope, energy performance indicators and the required involvement of active RES installations to achieve high energy performance of a building presented in the article is valuable. It allows for a preliminary decision of the direction of the design solutions selection in the design process of public utility buildings, such as nurseries. Thus, it may significantly shorten the pre-design analysis process for the location of the southern part of the Baltic Sea region. The novelty of the paper relies on examining the dependences between PV power and façade glazing ratio in terms of their influence on energy profile of nursery buildings.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-01-11
      DOI: 10.1108/ECAM-08-2021-0735
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Diagnostic intervention program based on construction workers' internal
           factors for persistent reduction of unsafe behavior

    • Free pre-print version: Loading...

      Authors: Mehdi Mohajeri , Abdollah Ardeshir , Hassan Malekitabar
      Abstract: This study aims to show what interventions in human factors can effectively reduce construction workers' unsafe behavior. A diagnostic intervention model targeted the construction workers' weakest internal factors. The workers' behavior and cognition data were collected via a questionnaire and a video camera system from two medium-sized construction sites. A safety supervisor accompanied each site supervisor to improve construction workers' internal factors by implementing the designed intervention measures. The statistical analysis results confirmed a persistent positive effect on construction workers' safe behavior by improving internal factors. Among the intervention programs applied, those aimed to improve the subjective norms, safety knowledge and attitudes had the most significant effect sizes. The findings of this case study advise project managers to design a specific behavioral intervention that aims at improving construction workers' significant internal factors, including subjective norms, safety attitudes, habits and knowledge together with demographic characteristics to reduce construction workers' unsafe behavior. While the declining rate of construction accidents approaches an asymptote which is still high, this study suggests that targeting the individual internal factors through diagnostic interventions is the key to further reduce the rate by improving construction workers' behavior.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-01-05
      DOI: 10.1108/ECAM-05-2021-0435
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Is the construction site a safer place under the USACE or local government
           guidelines' The case of Afghanistan

    • Free pre-print version: Loading...

      Authors: Mohammad Hashim Ibrahimkhil , Laith Hadidi
      Abstract: The aim of this paper is to assess the safety level of construction sites in Afghanistan following the US Army Corps of Engineers (USACE) safety practices and compare this with other construction sites in Afghanistan that follow local government safety guidelines. The USACE oversees and funds many infrastructure projects in Afghanistan, and these projects are supposed to follow the same standards implemented in the USA, including safety standards. The local government of Afghanistan also funds infrastructure projects in Afghanistan; however, these do not follow USACE best practices. This research explores the question of whether the USACE standards provide a safer construction site. The effect of the USACE standards on safety practices in construction projects is also investigated in the Afghanistan construction industry. A literature review and other safety checklists were used to develop a safety checklist containing 104 items (questions) in 17 categories. Subsequently, the checklist was used to assess the safety performance of 57 construction projects (25 USACE projects, and 32 governmental projects). Utilizing quantitative analysis, the Spearman rank correlation coefficient (Rho) and Mann–Whitney tests were carried out for correlation and statistical disparity between USACE and governmental projects. The safety performance level of Afghan government projects was found to be poor in relation to other developing countries, while in USACE projects it was excellent. In addition, fire prevention, safety administration, PPE, heavy equipment, and handling and storage of materials for all types of contractors were the most overlooked aspects of Afghan Government projects. The findings clearly demonstrate the deficiencies in construction sites observed during this study and also support the adoption of USACE standards in Afghanistan projects. To the best of the authors’ knowledge, this study is the first to investigate the safety of construction sites in Afghanistan. The study also demonstrates the benefits of adopting international standards (USACE) to improve the safety of construction sites in a developing country such as Afghanistan. The findings provide evidence of the safety of the Afghanistan construction industry compared to other developing countries. These findings will contribute to the Afghan Government's efforts to track injury statistics.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2022-01-03
      DOI: 10.1108/ECAM-05-2020-0361
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Understanding design change propagation in complex engineering systems
           using a digital twin and design structure matrix

    • Free pre-print version: Loading...

      Authors: Long Chen, Jennifer Whyte
      Abstract: As the engineering design process becomes increasingly complex, multidisciplinary teams need to work together, integrating diverse expertise across a range of disciplinary models. Where changes arise, these design teams often find it difficult to handle these design changes due to the complexity and interdependencies inherent in engineering systems. This paper aims to develop an innovative approach to clarifying system interdependencies and predicting the design change propagation at the asset level in complex engineering systems based on the digital-twin-driven design structure matrix (DSM). The paper first defines the digital-twin-driven DSM in terms of elements and interdependencies, where the authors have defined three types of interdependency, namely, geospatial, physical and logical, at the asset level. The digital twin model was then used to generate the large-scale DSMs of complex engineering systems. The cluster analysis was further conducted based on the improved Idicula–Gutierrez–Thebeau algorithm (IGTA-Plus) to decompose such DSMs into modules for the convenience and efficiency of predicting design change propagation. Finally, a design change propagation prediction method based on the digital-twin-driven DSM has been developed by integrating the change prediction method (CPM), a load-capacity model and fuzzy linguistics. A section of an infrastructure mega-project in London was selected as a case study to illustrate and validate the developed approach. The digital-twin-driven DSM has been formally defined by the spatial algebra and Industry Foundation Classes (IFC) schema. Based on the definitions, an innovative approach has been further developed to (1) automatically generate a digital-twin-driven DSM through the use of IFC files, (2) to decompose these large-scale DSMs into modules through the use of IGTA-Plus and (3) predict the design change propagation by integrating a digital-twin-driven DSM, CPM, a load-capacity model and fuzzy linguistics. From the case study, the results showed that the developed approach can help designers to predict and manage design changes quantitatively and conveniently. This research contributes to a new perspective of the DSM and digital twin for design change management and can be beneficial to assist designers in making reasonable decisions when changing the designs of complex engineering systems.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-07-06
      DOI: 10.1108/ECAM-08-2020-0615
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Developing engineering students' capabilities through game-based virtual
           reality technology for building utility inspection

    • Free pre-print version: Loading...

      Authors: Huai Jian Beh, Ali Rashidi, Amin Talei, Yee Sye Lee
      Abstract: The construction site operates under a hazardous environment that requires a high level of understanding in building systems to minimise accidents. However, the current building education generally adopts paper-based learning approaches that lack hands-on experiences. Furthermore, to achieve Industrial Revolution 4.0 in line with any unforeseen pandemic, the most optimum solution is to transition from physical to technological-based building education. This paper aims to address the problems by proposing a game-based virtual reality (GBVR) for building utility inspection training. The feasibility of the GBVR for building the utility inspection training approach is validated on a sample of undergraduate engineering students through user experience (survey) and performance-based comparisons against traditional paper-based training method. The results show that the developed GBVR training has higher system usability in terms of visual output and knowledge retention than paper-based training due to visualisation technologies. The GBVR training method has also higher user-friendliness because of the higher motivational and engagement factors through the adoption of virtual reality and game-based learning. GBVR training required a longer training duration and achieved a lower performance score (effectiveness) but can be improved by transitioning into hands-on tasks. This study has the potentials to be extended to vocational training platforms for competency development in the construction workforce by using cutting-edge extended reality technologies. This paper portrays the benefits of integrating virtual reality technology in building education to overcome the low practicality and engagement of paper-based training.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-07-05
      DOI: 10.1108/ECAM-02-2021-0174
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Selection of wearable sensor measurements for monitoring and managing
           entry-level construction worker fatigue: a logistic regression approach

    • Free pre-print version: Loading...

      Authors: Wonil Lee, Ken-Yu Lin, Peter W. Johnson, Edmund Y.W. Seto
      Abstract: The identification of fatigue status and early intervention to mitigate fatigue can reduce the risk of workplace injuries. Off-the-shelf wearable sensors capable of assessing multiple parameters are available. However, using numerous variables in the fatigue prediction model can elicit data issues. This study aimed at identifying the most relevant variables for measuring occupational fatigue among entry-level construction workers by using common wearable sensor technologies, such as electrocardiogram and actigraphy sensors. Twenty-two individuals were assigned different task workloads in repeated sessions. Stepwise logistic regression was used to identify the most parsimonious fatigue prediction model. Heart rate variability measurements, standard deviation of NN intervals and power in the low-frequency range (LF) were considered for fatigue prediction. Fast Fourier transform and autoregressive (AR) analysis were employed as frequency domain analysis methods. The log-transformed LF obtained using AR analysis is preferred for daily fatigue management, whereas the standard deviation of normal-to-normal NN is useful in weekly fatigue management. This study was conducted with entry-level construction workers who are involved in manual material handling activities. The findings of this study are applicable to this group. This is the first study to investigate all major measures obtainable through electrocardiogram and actigraphy among current mainstream wearables for monitoring occupational fatigue in the construction industry. It contributes knowledge on the use of wearable technology for managing occupational fatigue among entry-level construction workers engaged in material handling activities.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-07-01
      DOI: 10.1108/ECAM-02-2021-0106
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Public administration strategies that stimulate reverse logistics within
           the construction industry: a conceptual typology

    • Free pre-print version: Loading...

      Authors: Rayra Brandão, M. Reza Hosseini, Alcebíades N. Macêdo, André C. Melo, Igor Martek
      Abstract: Reverse logistics (RL) is a waste revaluation process aimed at reintroducing once-used materials back into the production cycle. Public administration (PA) plays a strong role in influencing the implementation of RL in the construction industry through policy and laws. While much research identifies PA as an important driver in RL, no research yet describes how this occurs. A systematic literature review was conducted on the theme PA in RL with 93 relevant publications retrieved. Six strategies used by PA to promote RL were extracted: (1) legislation, (2) government subsidies, (3) landfill disposal fee, (4) government inspection, (5) use in public construction works and (6) penalties and fines. Moreover, a typology built on these six strategies was developed, mapping 15 interactional relationships between strategies, according to three levels of influence: (1) encouragement (2) requirement and (3) regulation. It was found that legislation and government subsidies prove to be the more effective strategies, with the remaining strategies greatly neglected. Importantly, however, this study reveals that a combination of strategies are most effective when appropriately combined. This study confirms the importance of PA in RL, in construction, while documenting the extent of current research. The resulting proposed typology, along with 15 identified future research priorities, is expected to be of value to academics and policy makers looking to advance understanding in this domain.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-07-01
      DOI: 10.1108/ECAM-07-2020-0547
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Barriers to corporate social responsibility practices in construction and
           roles of education and government support

    • Free pre-print version: Loading...

      Authors: Hai Pham, Tho Pham, Chau Ngoc Dang
      Abstract: This study aims to empirically investigate the impact of barriers (i.e. organizational and industrial barriers, corporate social responsibility (CSR) characteristics) on CSR practices and the roles of education and government support in mitigating these barriers. In addition, the positive effect of CSR practices on social sustainability performance (SSP) is examined. A framework of hypotheses between barriers, CSR practices and SSP is established. Using a survey questionnaire, empirical data are collected from 17 construction firms in Vietnam. PLS-SEM is used to test the proposed hypotheses. The results indicate that organizational and industrial barriers negatively affect CSR practices. This study also finds that education and training and government support could enable construction firms to reduce the impact of such barriers. The data are collected in Vietnam; thereby the findings are only applicable in developing countries. Further research should also be conducted in other countries to improve the generalizability of the theoretical framework. The findings of this study suggest that construction firms could apply several strategies (e.g. providing their employees with CSR training and education; embedding CSR into their firm policy, mission and vision) to mitigate the impact of CSR barriers and, accordingly, ensure the success of adopting CSR practices. This study is one of the first efforts in the construction industry that empirically investigates the impact of barriers on CSR practices and the moderating effects of training and education as well as government support.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-30
      DOI: 10.1108/ECAM-03-2020-0199
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Stakeholders' impact on the leadership potential of small and medium-sized
           construction enterprises

    • Free pre-print version: Loading...

      Authors: Xinyu Cai, Dmitry Gura, Anastasia Kurilova
      Abstract: This study aimed to develop a methodological approach to assessing the impact of stakeholders on leadership potential of small and medium-sized construction enterprises. The research methodology was based on taxonomic analysis to determine the coefficient of leadership potential in the following areas: financial growth of an enterprise, internal processes, human resources development and market potential. The examination process was grounded on the materials from small and medium-sized construction companies located in Russia and China. Subgroups of companies with positive dynamics of indicators, an unstable situation and negative trends of leadership potential formation are identified. Russian small and medium-sized construction companies prioritize the development of sales policies and the management of internal business processes, while Chinese companies–human potential. The generated regression equations indicate a direct relationship between stakeholder engagement and the leadership potential of construction companies in both countries. The scientific contribution of this study is the proposed methodological approach to assessing the development of the leadership potential of an enterprise and diagnosing the degree of stakeholders' influence on the latter. This is facilitated by comprehensive analysis, which includes an assessment of leadership potential based on the results of taxonomic analysis, construction of vector diagrams and regression analysis. This study can be useful for persons conducting research in the direction of small and medium-sized business management, forming a strategy for business development and competition policy to form a company's leadership position in the market.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-30
      DOI: 10.1108/ECAM-04-2021-0290
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Identifying focus areas to decode the decision to litigate contractual
           disputes in construction

    • Free pre-print version: Loading...

      Authors: Murali Jagannathan, Venkata Santosh Kumar Delhi
      Abstract: Strong and independent judiciary symbolizes transparency and impartiality in the dispute resolution process. However, litigation is often time-consuming and affects the working relationship between the disputants. In the construction context, where projects typically have a short life span of three to four years, dispute resolution through litigation induces unaffordable process delays. Despite the inherent challenges associated with litigation, it is observed that disputing parties resort to litigation. This behavior, called the litigation dilemma, ostensibly appears counterintuitive to rational decision-making. The study identifies 35 “decision to litigate” (DTL)-triggers from a review of the literature and court cases followed by expert interviews and groups them into thematic research domains using Exploratory Factor Analysis (EFA) followed by Confirmatory Factor Analysis (CFA). DTL studies in construction stands benefited through interdisciplinary research. “Presumptuous decision-making,” “construction project characteristics,” “milieu influence,” “interest in amicable resolution,” “positional focus” and “opportunism” are the six focus areas to decode the DTL in construction. The study identifies factors that consolidate the knowledge from various fields with the substantive experience of construction professionals from across the world to help understand the dynamics behind the DTL in the context of contract-linked disputes in construction. The findings from the domains of law, behavior, sociology and economics can help understand the above dilemma in the context of contractual disputes in construction. However, studies that explore the “decision to litigate” (DTL) contractual disputes in construction are limited, providing a vast scope for further research. The current study addresses a part of this gap.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-29
      DOI: 10.1108/ECAM-01-2021-0014
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Key drivers for green building project financing in Ghana

    • Free pre-print version: Loading...

      Authors: Kofi Agyekum, Chris Goodier, James Anthony Oppon
      Abstract: The majority of the literature on green buildings in Ghana focuses on environmental benefits, innovative designs, construction technologies and project management techniques. However, little is known about how such facilities are financed. This issue creates potential knowledge gaps, one of which this study aims to address. This study examines the key drivers for green building project financing in Ghana. The study uses an explanatory sequential design with an initial quantitative instrument phase, followed by a qualitative data collection phase. An extensive critical comparative review of the literature resulted in the identification of eight potential drivers. One hundred and twenty-seven questionnaire responses based upon these drivers from the Ghanaian construction industry were received. Data were coded with SPSS v22, analysed descriptively (mean, standard deviation and standard error) and via inferential analysis (One Way ANOVA and One-Sample t-Test). These data were then validated through semi-structured interviews with ten industry professionals within the Ghana Green Building Council. Data obtained from the semi-structured validation interviews were analysed through the side-by-side comparison of the qualitative data with the quantitative data. Though all eight drivers are important, the five key drivers for the Ghanian construction industry were identified as, in order of importance, “high return on investment”, “emerging business opportunity”, “ethical investment”, “conservation of resources” and “mandatory regulations, standards, and policies”. The interviewees agreed to and confirmed the importance of these identified drivers for green building project financing from validating the survey's key findings. Key limitations of this study are the restrictions regarding the geographical location of the collected data (i.e. Kumasi and Accra); timing of the study and sample size (i.e. the COVID-19 pandemic making it difficult to obtain adequate data). Though this study was conducted in Ghana, its implications could be useful to researchers, policymakers, stakeholders and practitioners in wider sub-Saharan Africa. For instance, financial institutions can invest in green buildings to expand their green construction and mortgage finance products to build higher value and lower risk portfolios. The findings from this study can provide investors with the enhanced certainty needed to help guide and inform their investment decisions, i.e. what to invest in, and when, by how much and how a scheme being “green” may influence their rate of return. Also, for building developers, it will give them a clearer understanding of the business case for green buildings and how to differentiate themselves in the market to grow their businesses. This study's findings provide insights into an under-investigated topic in Ghana and offer new and additional information and insights to the current state-of-the-art on the factors that drive green building project financing.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-29
      DOI: 10.1108/ECAM-02-2021-0131
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Application of stacking ensemble machine learning algorithm in predicting
           the cost of highway construction projects

    • Free pre-print version: Loading...

      Authors: Meseret Getnet Meharie, Wubshet Jekale Mengesha, Zachary Abiero Gariy, Raphael N.N. Mutuku
      Abstract: The purpose of this study to apply stacking ensemble machine learning algorithm for predicting the cost of highway construction projects. The proposed stacking ensemble model was developed by combining three distinct base predictive models automatically and optimally: linear regression, support vector machine and artificial neural network models using gradient boosting algorithm as meta-regressor. The findings reveal that the proposed model predicted the final project cost with a very small prediction error value. This implies that the difference between predicted and actual cost was quite small. A comparison of the results of the models revealed that in all performance metrics, the stacking ensemble model outperforms the sole ones. The stacking ensemble cost model produces 86.8, 87.8 and 5.6 percent more accurate results than linear regression, vector machine support, and neural network models, respectively, based on the root mean square error values. The study shows how stacking ensemble machine learning algorithm applies to predict the cost of construction projects. The estimators or practitioners can use the new model as an effectual and reliable tool for predicting the cost of Ethiopian highway construction projects at the preliminary stage. The study provides insight into the machine learning algorithm application in forecasting the cost of future highway construction projects in Ethiopia.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-28
      DOI: 10.1108/ECAM-02-2020-0128
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Managing project scope creep in construction industry

    • Free pre-print version: Loading...

      Authors: Mian M. Ajmal, Mehmood Khan, Angappa Gunasekaran, Petri T. Helo
      Abstract: Project scope creep is a nightmare and nearly intolerable task. Most project managers struggle to curtail the expanse and degree of scope creep. This study examines different likely project scope creep factors associated with the construction industry projects. After many brainstorming sessions with construction stakeholders, several project scope creep factors were identified. Then, a detailed survey was executed in big construction projects of the United Arab Emirates (UAE). The data were analyzed using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). The results derived and validated five conspicuous factors leading to project scope creep. Respectively, the highest and the lowest impact on project scope appears to be imposed by tasks/specifications and complexity/uncertainty. It offers crucial support to the project stakeholders in scrutinizing different factors that stand as hurdles to project success and allows them to seek remedies to resolve them. It is among the first study in the region that identifies and validates the factors that hinder construction project success.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-28
      DOI: 10.1108/ECAM-07-2020-0568
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • A model for work packages optimization in results-based-finance projects

    • Free pre-print version: Loading...

      Authors: Amira Shalaby, A. Samer Ezeldin
      Abstract: In many developing countries, the sanitation sector constitutes a major part of their strategic plans of reform. Yet with the very limited budget of the public treasury, countries opt to major lending institutions for funds. “Results-Based-Finance” is a new funding mechanism that has proven its efficiency in achieving the necessary reform in sanitation sectors. Due to the complexity of the funding tool, it is crucial to be able to decompose the project into smaller packages to be able to effectively control the project. The objective of this paper is to reach an optimum packaging scheme that enables the project to be successfully managed through better planning and cost control practices. With the aid of Unified Modelling Language (UML), an algorithm is developed to map the logic behind the model suggested with detailed illustrations of its different modules. Object-oriented processes and operations are modeled using different diagrams of the language, which automatically generate the optimum packaging combination. The packaging model is then implemented via a number of computer-aided programs. The Microsoft Excel 2019 is used for calculation purposes. Visual Basic for Applications (VBA) programming language is used to make the model user-friendly for non-engineering stakeholders. The Palisade's Decision Tools Suite is used for the optimization process The model is validated through a case study of a mega sanitation project located in Egypt. The model output is not only the content of the packages but also a complete managing plan which demonstrates many useful information to the decision-makers and government officials. The research aim is to provide the construction industry with a tool that makes the packaging process of mega projects funded through the “Results-Based-Finance” mechanism, done in an automated manner. Moreover, the packages are selected in a way to optimize the project cashflow. Having the optimum package size shall ensure better planning and a more accurate cost control. Yet it is a challenging task; especially, when the project cash flow is very sensitive and intolerant to delays like in the “Results-Based-Finance” mechanism.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-25
      DOI: 10.1108/ECAM-10-2019-0556
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Collaboration strategy selection in BIM-enabled construction projects: a
           perspective through typical collaboration profiles

    • Free pre-print version: Loading...

      Authors: Guangchong Chen, Jiayu Chen, Yuchun Tang, Yan Ning, Qiming Li
      Abstract: Collaboration is essential to BIM-enabled construction projects (BECPs). To facilitate collaboration, various strategies have been proposed. Usually, project team adopts single collaboration strategy for convenience. However, BIM-based collaboration is rather dynamic and exposed to a lot of barriers and risks, which easily changes collaboration conditions among partners. Therefore, better understanding of collaboration conditions in BECPs is crucial to develop flexible and suitable strategies. To fill in the gap, this study intends to identify typical collaboration profiles in BECPs and develop a profile-oriented strategy selection framework. This study establishes a six-dimensional collaborative behavior matric based on a comprehensive literature review to profile collaboration. Then a questionnaire survey is conducted to collect the collaboration data from 162 BECPs in China. Finally, latent profile analysis (LPA) is utilized to identify the typical collaboration profiles in BECPs. Through LPA, four profiles are identified, including restricted collaboration profile, smarmy collaboration profile, intuitive collaboration profile, and modest collaboration profile. A profile-oriented strategy selection framework is also established to match strategies with collaboration profiles. Two major categories of strategies are proposed to promote these collaboration profiles including trust building and elevating strategies and collaborative behaviors facilitating strategies. These identified profiles can provide an insightful understanding on the diversified collaboration conditions in BECPs. The profile-oriented strategy selection framework will help managers develop strategies flexibly to promote collaboration in BECPs. This study validates four typical collaboration profiles in BECPs. Moreover, a profile-oriented strategy selection framework is also established for collaboration facilitation in BECPs.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-23
      DOI: 10.1108/ECAM-01-2021-0004
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Productivity monitoring in building construction projects: a systematic
           review

    • Free pre-print version: Loading...

      Authors: Wesam Salah Alaloul, Khalid M. Alzubi, Ahmad B. Malkawi, Marsail Al Salaheen, Muhammad Ali Musarat
      Abstract: The unique nature of the construction sector makes it fall behind other sectors in terms of productivity. Monitoring construction productivity is crucial for the construction project's success. Current practices for construction productivity monitoring are time-consuming, manned and error prone. Although previous studies have been implemented toward reducing these limitations, a gap still exists in the automated monitoring of construction productivity. This study aims to investigate and assess the different techniques used for monitoring productivity in building construction projects. Therefore, a mixed review methodology (bibliometric analysis and systematic review) was adopted. All the related publications were collected from different databases, which were further screened to get the most relevant based on the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) criteria. A detailed review was performed, and it was found that traditional methods, computer vision-based and photogrammetry are the most adopted data acquisition for productivity monitoring of building projects, respectively. Machine learning algorithms (ANN, SVM) and BIM were integrated with monitoring tools and technologies to enhance the automated monitoring performance in construction productivity. Also, it was observed that current studies did not cover all the complex construction job sites and they were applied based on a small sample of construction workers and machines separately. This review paper contributes to the literature on construction management by providing insight into different productivity monitoring techniques.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-23
      DOI: 10.1108/ECAM-03-2021-0211
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Early-stage cost estimation model for power generation project with
           limited historical data

    • Free pre-print version: Loading...

      Authors: Jin Gang Lee, Hyun-Soo Lee, Moonseo Park, JoonOh Seo
      Abstract: Reliable conceptual cost estimation of large-scale construction projects is critical for successful project planning and execution. For addressing the limited data availability in conceptual cost estimation, this study proposes an enhanced ANN-based cost estimating model that incorporates artificial neural networks, ensemble modeling and a factor analysis approach. In the ANN-based conceptual cost estimating model, the ensemble modeling component enhances training, and thus, improves its predictive accuracy and stability when project data quantity is low; and the factor analysis component finds the optimal input for an estimating model, rendering explanations of project data more descriptive. On the basis of the results of experiments, it can be concluded that ensemble modeling and FAMD (Factor Analysis of Mixed Data) are both conjointly capable of improving the accuracy of conceptual cost estimates. The ANN model version combining bootstrap aggregation and FAMD improved estimation accuracy and reliability despite these very low project sample sizes. The generalizability of the findings is hard to justify since it is difficult to collect cost data of construction projects comprehensively. But this difficulty means that our proposed approaches and findings can provide more accurate and stable conceptual cost forecasting in the early stages of project development. From the perspective of this research, previous uses of past-project data can be deemed to have underutilized that information, and this study has highlighted that — even when limited in quantity — past-project data can and should be utilized effectively in the generation of conceptual cost estimates.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-22
      DOI: 10.1108/ECAM-04-2020-0261
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • A multivariate regression approach toward prioritizing BIM adoption
           barriers in the Ethiopian construction industry

    • Free pre-print version: Loading...

      Authors: Shihunegn Alemayehu, Ali Nejat, Tewodros Ghebrab, Souparno Ghosh
      Abstract: Building information modeling (BIM) is a process of creating an intelligent virtual model integrating project data from design to construction and operation. BIM models enhance the process of communicating the progress of construction to stakeholders and facilitate integrated project delivery, coordination and clash detection. However, barriers within the construction industry in Ethiopia has led to slow BIM adoption in the country. The aim of this paper is to identify perceived BIM barriers, provide a platform to quantify their importance and develop a regression model to link individual's personal/professional attributes to their perception of BIM barrier. To address the objectives of this research, an online survey was developed to collect feedback from construction professionals in Ethiopia on 20 major adoption barriers extracted from a thorough review of literature. Relative importance index and strength of consensus metric were employed to identify the significance of barriers. This was then succeeded by performing exploratory factor analysis to determine the major constructs of BIM barriers which was then used to develop a multivariate regression model linking respondents' personal attributes to their perception of BIM barrier. Results revealed the importance of project complexity and BIM maturity level in prioritizing barriers that are more relevant under various contexts. More specifically, results indicated the following study highlights: Project complexity led to higher perceived weights for lack of appropriate physical/cloud infrastructures, and a BIM standard. Higher levels of BIM maturity signified the importance of BIM internal issues such as liability, licensing and maintenance issues among other adoption barriers. Female participants tended not to consider intangibility of BIM benefits as a major barrier towards BIM adoption compared to male participants. Age of the participants turned out to be the least important factor in their prioritization of BIM perceived adoption barriers. While many research studies have explored BIM adoption barriers in various countries around the world, none to the best of the authors' knowledge have attempted to develop a model to highlight the impact of individuals' personal/professional attributes on their perception of adoption barriers within their community which can help with prioritizing the barriers that are deemed to be more important given the characteristics of the community under study. Our result indicated the importance of BIM maturity level and project complexity in prioritizing barriers associated with BIM adoption within Ethiopia's construction industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-21
      DOI: 10.1108/ECAM-02-2021-0165
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Critical considerations on tower crane layout planning for high-rise
           modular integrated construction

    • Free pre-print version: Loading...

      Authors: Zhiqian Zhang, Wei Pan, Mi Pan
      Abstract: Modular integrated construction (MiC) is the most advanced off-site construction technology. However, the application of MiC for high-rise buildings is still limited and challenging. One critical issue is tower crane layout planning (TCLP) to guarantee safe and efficient multiple crane-lifts for module installation, which, however, has been insufficiently explored. For filling this knowledge gap, this paper aims to systematically explore the critical considerations on TCLP for high-rise MiC to support contractors in determining the optimal crane layout plan. This study employed a multimethod strategy. First, previous studies on TCLP and critical features of MiC were reviewed to develop a conceptual model of TCLP considerations. Second, expert interviews with 15 construction planners were conducted to identify the critical TCLP considerations for high-rise MiC. Third, a multicase study with three high-rise MiC projects was undertaken to demonstrate and verify the identified considerations. The paper characterises critical considerations on TCLP as performance criteria and influencing factors and identifies 7 critical performance criteria and 25 influencing factors for high-rise MiC. Specifically, the features of MiC (e.g. various modularised layout design, heavyweight and large size of modules) were found to significantly affect the crane layout performance (i.e. technical feasibility, safety and economic efficiency). The paper is the first-of-its-kind study on crane layout planning for high-rise modular buildings, which contributes a two-stage multicriteria decision-making framework integrated with systematic TCLP considerations. The findings should help contractors determine safe and efficient tower crane layout plans for high-rise MiC projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-18
      DOI: 10.1108/ECAM-03-2021-0192
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Transition from traditional to alternative project delivery methods in
           water and wastewater project: executive decision-makers' perspective

    • Free pre-print version: Loading...

      Authors: Pramen P. Shrestha, Jacimaria R. Batista
      Abstract: The purpose of this study is to determine the barriers and constraints executive decision-makers have to face during the delivery method selection stage of water and wastewater projects using alternative project delivery (APD) methods, e.g. design-build (DB), design-build-operate (DBO) and construction management-at-risk (CMAR). Structured interviews were conducted with 18 executive decision-makers from public agencies to identify the reasons for transitioning to APD from the design-bid-build (DBB) method. Respondents were also asked about the major obstacles they faced during the decision-making process, as well as key positive and negative factors in using APD methods. The executive decision-makers were also asked about their lessons learned during this process. In addition, this study collected key steps in making APD water and wastewater projects successful. All of the findings from the interview phase were validated by seven public agency executive decision-makers of water and wastewater industries. One major study finding was that executive decision-makers chose the APD method because it provided cost and schedule benefits and the owner could also choose the designer or builder based on qualifications. The study also found that the main obstacles executive decision-makers faced were: (1) difficulty in implementing APD methods because they do not follow the low-bid process, (2) reluctance to use DB/CMAR because of the status quo and (3) unfamiliarity of city councils/elected commissions with the DB/CMAR process. The validation survey found that most findings from the initial phase of interviews were confirmed by the executives who took part in validation phase. The major limitation of this research is the small sample size. As the executive decision-makers are very hard to reach for interviews, the authors failed to get interviews from a large number of them, despite repeated efforts made by the authors. Another limitation of this study is that the authors contacted most of the executive decision-makers listed in the WDBC list. These executive decision-makers worked for public agencies and, therefore, the views from private agencies could not be included in this research. The authors understand that the validation of the study findings is very important. However, due to the scope and limited time available for the research, the authors could not validate the findings of this study with other public agencies. Selecting APD methods instead of DBB methods in water and wastewater projects for public agencies is a crucial issue during the project planning phase. Agencies' executive decision-makers need to understand the advantages and disadvantages of APD methods, along with the transition process in order to smoothly deliver projects. The findings of this study will assist public agency executive decision-makers to mitigate risks, overcome obstacles and become more educated about the APD method process, so that these projects can be successfully delivered within budget and on time. This paper contributes to the existing body of knowledge by identifying lessons learned related to various APD method issues, which can be utilized by municipal executive decision-makers to successfully complete future APD projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-18
      DOI: 10.1108/ECAM-10-2020-0791
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Inflation rate and labours’ wages in construction projects: economic
           relation investigation

    • Free pre-print version: Loading...

      Authors: Muhammad Ali Musarat, Wesam Salah Alaloul, M.S. Liew
      Abstract: Labours are one of the key resources of construction projects having a significant impact on economic development. With time, the construction industry is getting a boom due to numerous construction projects in which labours’ contribution is significant. Project betterment is associated with the project productivity which relates to the labours. Wages play a vital role in retaining labours in the construction industry. This study focuses on investigating the increasing and decreasing behaviour of labour wages in the construction industry and observing the impact of the inflation rate in deviating labour wages. Initially, the percentage deviation was calculated to observe the changing behaviour of the data and then the Spearman correlation test was used to find the relationship between the inflation rate and the labour wages. It is evident that even with a good economy and a stable construction sector, still, the labour wages faced a decline over time, which is a matter of concern. Also, based on the correlation coefficient, it was revealed that several labour wages categories are moderately and strongly correlated with the inflation rate and can impact project cost if the inflation rate is not considered while finalizing the budget. Besides that, the changing behaviour of labour wages due to the inflation rate impacts significantly on gross domestic product (GDP); therefore, it requires vital attention. Changes in labour wages are not considered in budget estimation which drag the project towards cost overrun. This study brings the attention of the stakeholders on the issue with experimental justification. Also, how the inflation rate is affecting the labour wages has also been addressed.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-16
      DOI: 10.1108/ECAM-07-2020-0478
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Investigating the causes preventing the fulfillment of construction
           contract requirements

    • Free pre-print version: Loading...

      Authors: Fadi A. Fatayer, Amjad Z. Issa, Mohammed Abunemeh, Mohammed A.M. Dwikat
      Abstract: Construction contractors in Palestine, as in many other developing countries, suffer from many problems. One of their main problems is their inability to meet contractual requirements, such as completing projects within time, at the agreed cost and to the desired quality. Therefore, this paper aims to investigate the causes of the non-fulfillment of contractual requirements in three different types of projects: building, road and electro-mechanical projects. Two methods were adopted to collect the data – qualitative and quantitative. In total, 65 causes were identified from the literature and qualitative semi-structured interviews with professional experts. These causes were classified into five categories: managerial, financial, contractor capabilities, regulations and laws and political. In the quantitative approach, a questionnaire was developed and then distributed to 50 professional experts: 20 building experts, 15 road experts and 15 experts in electro-mechanical projects. A five-point Likert scale was used to assess the importance, from the perspective of the subject matter experts, of the causes that had been identified. About 35 responses, which represent a combined response rate of 70%, were received. The quantitative data were analyzed using descriptive statistics, with the mean, standard deviation and degree of importance for each of the identified causes being determined, and the SPSS software platform used to rank them. The results reveal that the most important reasons why contractors did not fulfill their contractual requirements in building projects were that contracts were awarded to the contractor offering the lowest price, and the profit margin was low because of intense competition among contractors. In road projects, the most important causes were the poor estimation of the equipment required and a lack of standardized conditions in the construction sector, while in electro-mechanical projects, the most important causes were the inability of the contractor to estimate the cost of the project accurately because of unclear bid documents and a lack of contractor capital. The results of this study will be useful to stakeholders and Palestinian contractor unions. They can be disseminated to give guidance so that contractors can avoid these problems in future construction projects and enhance their compliance with contractual requirements. Moreover, knowing about these causes may lead to the reduction of conflicts and disputes between contractual parties (owners and contractors), which in turn will be reflected in the work quality and reputation of contractors.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-15
      DOI: 10.1108/ECAM-01-2021-0083
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Empirically validating five propositions regarding 3D visualizations for
           subsurface utility projects

    • Free pre-print version: Loading...

      Authors: Mechiel van Manen, Léon olde Scholtenhuis, Hans Voordijk
      Abstract: This study aims to empirically validate five propositions about the benefits of three-dimensional (3D) visualizations for the management of subsurface utility projects. Specifically, the authors validate whether benefits from 3D in the literature of building construction project management also apply to subsurface utility projects and map them using a taxonomy of project complexity levels. A multiple case study of three utility construction projects was carried out during which the first author was involved in the daily work practices at a utility contractor. 3D visualizations of existing project models were developed, and design and construction meetings were conducted. Practitioners' interactions with and reflections on these 3D visualizations were noted. Observational data from the three project types were matched with the five propositions to determine where benefits of 3D visualizations manifested themselves. Practitioners found that 3D visualizations had most merit in crowded urban environments when constructing rigid pipelines. All propositions were validated and evaluated as beneficial in subsurface utility projects of complexity level C3. It is shown that in urban projects with rigid pipelines (project with the highest complexity level), 3D visualization prevents misunderstanding or misinterpretations and increases efficiency of coordination. It is recommended to implement 3D visualization approaches in such complex projects There is only limited evidence on the value 3D visualizations in managing utility projects. This study contributes rich empirical evidence on this value based on a six-month observation period at a subsurface contractor. Their merit was assessed by associating 3D approaches with project complexity levels, which may help utility contractors in strategically implementing 3D applications.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-15
      DOI: 10.1108/ECAM-11-2020-0980
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • A systematic review of factors influencing the implementation of health
           promotion programs in the construction industry

    • Free pre-print version: Loading...

      Authors: Tamara Fuller, Abid Hasan, Imriyas Kamardeen
      Abstract: The construction industry has a poor reputation for an unhealthy lifestyle and a high prevalence of health problems such as obesity, stress and hypertension among construction workers. The review examines the factors influencing the design and delivery of health promotion programs implemented by construction organisations to educate workers and promote a healthy lifestyle. It also identifies gaps in research and practices and proposes directions for future research. A systematic review of 51 relevant journal articles published during 2010–2019 was undertaken to achieve the aim of the study. The review reveals 46 different factors grouped into four major themes related to individuals, organisations, industry and the program, influencing the successful implementation of health promotion programs. The top ten most cited factors are cost, time, facilities and resources, transient workforce, delivery method, influence from managers, long working hours, masculine culture, production pressure and interest. The review also found a noticeable lack of studies on implementing health promotion programs in the context of developing countries, small and medium-sized construction organisations, residential sector workers, and construction professionals and female workers. The review's scope is limited to research on health promotion programs, and it did not investigate the factors affecting the health of construction workers in construction projects. A better understanding of various influencing factors present at different decision levels will inform the future implementation of targeted workforce health promotion strategies to foster construction workers' health and well-being. The review reveals bottlenecks that need to be addressed to successfully implement health promotion programs in the construction industry. It provides new insights that can improve existing health and workplace policies and health promotion programs in the construction industry. Finally, it identifies new research directions in a neglected but crucial area of workers' health and safety management.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-14
      DOI: 10.1108/ECAM-03-2021-0257
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Social sustainability in Public–Private Partnership projects: case study
           of the Northern Beaches Hospital in Sydney

    • Free pre-print version: Loading...

      Authors: Kun Wang, Yongjian Ke, Tingting Liu, Shankar Sankaran
      Abstract: The purpose of this paper is to present evidence to the heated debate “whether Public-Private Partnership (PPP) model should be introduced into the hospitals” and, if so, how to promote the social sustainability of such PPP projects. This paper has established an analytical framework to analyse the social sustainability of PPP projects. Using content analysis method, a single case study was carried out on the Northern Beaches Hospital in Sydney, Australia. The results show that there are many problems related to social sustainability in the project, due to which employees and patients were exposed to most of them. Some recommendations are provided, including to strengthen the supervision of the project, provide sufficient information, establish communication channels and stakeholder participation, improve hospital policies and procedures, and strengthen government support. This paper can provide guidance for the stakeholders in a partnership, including the public and private sectors, to analyse the social sustainability implications, and then plan and implement hospital PPP projects to achieve social sustainability goals. Meanwhile, it can also provide important reference for the employees, patients, local community and society to assess social sustainability issues, and provide relevant inputs to inform decision-makers in the development, delivery and management of hospital projects. The research will contribute to knowledge of social sustainability of hospital PPP projects. The proposed analytical framework can be used to analyse and assess the social sustainability of such projects from the perspective of stakeholders.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-11
      DOI: 10.1108/ECAM-10-2020-0835
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Failure factors–a comparative study of private and government
           construction firms

    • Free pre-print version: Loading...

      Authors: Yogeshwar V. Navandar, Chintaman Bari, P. G. Gaikwad
      Abstract: The purpose of the present study is to examine the failure factors for the construction firms in a developing nation. Furthermore, the comparison of failure factors for private and government firms are evaluated. In the present study, comparison between private and government construction firms is done in the context of a construction firm failure. About 60 construction firms were selected in and around the Nashik region for the investigation, where a simple multi-attribute rating technique (SMART) is used for analysis purpose. It is found that for private firms (private contractors and builders) lack of experience is the major factor for failure of the business as against lack of managerial experience is a critical factor in case of a government contractor. The outcome of the present study will be used to guide the policymakers during the implementation of governmental and private projects in order to lessen the construction project failures. Construction company failure is an important aspect in developing countries like India. The limited studies were available in literature which shows failure factors for government and private firms and distinguished them. Hence, the present study extends the construction company failure literature by focusing on government and private firms. Also, the study provides some theoretical guidelines for management to avoid construction company failure in India.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-10
      DOI: 10.1108/ECAM-03-2020-0184
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Enhancing users involvement in architectural design using mobile augmented
           reality

    • Free pre-print version: Loading...

      Authors: Bassam Shouman, Ayman Ahmed Ezzat Othman, Mohamed Marzouk
      Abstract: Mobile augmented reality (MAR) is one of the advanced three-dimensional (3D) representation tools that has been recently utilized in the construction industry. This paper aims to assess a user’s involvement levels through MAR application that has been experimented against traditional involvement techniques through an existing facility, plan re-designing scenario. Through reviewing related literature studies in the MAR field, an application has been developed that can superimpose real design alternatives on paper-based markers, allowing for flexible wall positioning, interior and exterior wall material application. As such, an enhanced user involvement experience is created. To measure user involvement levels, the application is experimented with 33 participants having the British University in Egypt’s library building as a case study, followed by survey questionnaires to gather and evaluate user responses. The results of the analyzed data using SPSS indicated that MAR showed a positive impact on enhancing user involvement and better understanding of design projects. It also allowed users to produce different design alternatives in comparison to the traditional involvement approaches where users showed low design interaction and understanding. The interactive features of the proposed application facilitate implementing ideas in design of construction projects that require user involvement.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-09
      DOI: 10.1108/ECAM-02-2021-0124
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Formalizing knowledge representation in earthwork operations through
           development of domain ontology

    • Free pre-print version: Loading...

      Authors: Alhusain Taher, Faridaddin Vahdatikhaki, Amin Hammad
      Abstract: This study proposes a framework for Earthwork Ontology (EW-Onto) to support and enhance data exchange in the project and the efficient decision-making in the planning and execution phases. The development of EW-Onto started from defining the concepts and building taxonomies for earthwork operations and equipment following the METHONTOLOGY approach. In addition, several rules have been extracted from safety codes and implemented as SWRL rules. The ontology has been implemented using Protégé. The consistency of EW-Onto has been checked and it has been evaluated using a survey. The assessment of EW-Onto by experts indicates an adequate level of consensus with the framework, as an initial step for explicit knowledge exchanges within the earthwork domain. The use of an ontology within the earthwork domain can help: (1) link and identify the relationships between concepts, define earthwork semantics, and classify knowledge in a hierarchical way accepted by experts and end-users; (2) facilitate the management of earthwork operations and simplify information exchange and interoperability between currently fragmented systems; and (3) increase the stakeholders' knowledge of earthwork operations through the provision of the information, which is structured in the context of robust knowledge. This paper proposes a framework for Earthwork Ontology (EW-Onto) to support and enhance data exchange in the project and the efficient decision-making in the planning and execution phases. EW-Onto represents the semantic values of the entities and the relationships, which are identified and formalized based on the basic definitions available in the literature and outlined by experts.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-09
      DOI: 10.1108/ECAM-10-2020-0810
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • A fuzzy synthetic evaluation of vulnerabilities affecting supply chain
           resilience of industrialized construction in Hong Kong

    • Free pre-print version: Loading...

      Authors: E.M.A.C. Ekanayake, Geoffrey Shen, Mohan Kumaraswamy, Emmanuel Kingsford Owusu
      Abstract: Demands for Industrialized Construction (IC) have intensified with growing construction industry imperatives to (A) boost performance; (B) reduce reliance on “in-situ and on-site” operations; and (C) strengthen supply chain resilience (SCR) not just for survival but also to fulfill obligations to clients in the coronavirus disease 2019–induced (COVID-19–induced) “new normal”. In addressing these imperatives, this paper targets more effective leveraging of latent efficiencies of off-site-manufacture, based on findings from a Hong Kong (HK)–based study on assessing and improving SCR in IC in a high-density city. Starting with the identification of critical supply chain vulnerabilities (CSCVs), this study developed a multilevel–multicriteria mathematical model to evaluate the vulnerability levels of IC supply chains (SCs) in HK based on an in-depth questionnaire survey followed by experts' inputs and analyzing them using fuzzy synthetic evaluation (FSE). The overall vulnerability index indicates that IC in HK is substantially vulnerable to disruptions, while production-based vulnerabilities have the highest impact. Top management attention is needed to address these CSCVs in IC in HK. To the authors' knowledge, this is the first structured evaluation model that measures the vulnerability level of IC, providing useful insights to industry stakeholders for well-informed decision-making in achieving resilient, sustainable and performance-enhanced SCs.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-08
      DOI: 10.1108/ECAM-12-2020-1010
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Optimized resource-constrained method for project schedule compression

    • Free pre-print version: Loading...

      Authors: Moaaz Elkabalawy, Osama Moselhi
      Abstract: This paper aims to present an integrated method for optimized project duration and costs, considering the size and cost of crews assigned to project activities' execution modes. The proposed method utilizes fuzzy set theory (FSs) for modeling uncertainties associated with activities' duration and cost and genetic algorithm (GA) for optimizing project schedule. The method has four main modules that support two optimization methods: modeling uncertainty and defuzzification module; scheduling module; cost calculations module; and decision-support module. The first optimization method uses the elitist non-dominated sorting genetic algorithm (NSGA-II), while the second uses a dynamic weighted optimization genetic algorithm. The developed scheduling and optimization methods are coded in python as a stand-alone automated computerized tool to facilitate the developed method's application. The developed method is applied to a numerical example to demonstrate its use and illustrate its capabilities. The method was validated using a multi-layered comparative analysis that involves performance evaluation, statistical comparisons and stability evaluation. Results indicated that NSGA-II outperformed the weighted optimization method, resulting in a better global optimum solution, which avoided local minima entrapment. Moreover, the developed method was constructed under a deterministic scenario to evaluate its performance in finding optimal solutions against the previously developed literature methods. Results showed the developed method's superiority in finding a better optimal set of solutions in a reasonable processing time. The novelty of the proposed method lies in its capacity to consider resource planning and project scheduling under uncertainty simultaneously while accounting for activity splitting.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-08
      DOI: 10.1108/ECAM-12-2020-1019
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Applications of Bayesian approaches in construction management research: a
           systematic review

    • Free pre-print version: Loading...

      Authors: Carol K.H. Hon, Chenjunyan Sun, Bo Xia, Nerina L. Jimmieson, Kïrsten A. Way, Paul Pao-Yen Wu
      Abstract: Bayesian approaches have been widely applied in construction management (CM) research due to their capacity to deal with uncertain and complicated problems. However, to date, there has been no systematic review of applications of Bayesian approaches in existing CM studies. This paper systematically reviews applications of Bayesian approaches in CM research and provides insights into potential benefits of this technique for driving innovation and productivity in the construction industry. A total of 148 articles were retrieved for systematic review through two literature selection rounds. Bayesian approaches have been widely applied to safety management and risk management. The Bayesian network (BN) was the most frequently employed Bayesian method. Elicitation from expert knowledge and case studies were the primary methods for BN development and validation, respectively. Prediction was the most popular type of reasoning with BNs. Research limitations in existing studies mainly related to not fully realizing the potential of Bayesian approaches in CM functional areas, over-reliance on expert knowledge for BN model development and lacking guides on BN model validation, together with pertinent recommendations for future research. This systematic review contributes to providing a comprehensive understanding of the application of Bayesian approaches in CM research and highlights implications for future research and practice.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-07
      DOI: 10.1108/ECAM-10-2020-0817
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Regional differences and driving factors of construction and demolition
           waste generation in China

    • Free pre-print version: Loading...

      Authors: Zhenshuang Wang, Wanchen Xie, Jingkuang Liu
      Abstract: The growth of the Chinese economy has resulted in a significant increase in construction and demolition waste (CDW), and regional differences in CDW generation are gradually increasing. The purpose of this study is to investigate the regional differences in CDW generation and the driving factors that influence CDW generation in different areas of China. To provide a systematic advisement for local governments to select the appropriate policy, reduce CDW generation. The generation of CDW was calculated by region, based on the area estimation method, from 2005 to 2018. The relationship between CDW generation and economic development, and the driving factors of CDW generation in different regions of China, was investigated using the environmental Kuznets curve (EKC) model and the STIRPAT theoretical model. CDW generation of China increased at the average annual growth rate of 10.86% from 2005 to 2018. The main areas of CDW generation were concentrated in the eastern and central regions, while the proportion of CDW generation in the northeast region decreased gradually, and the changes varied significantly across different regions. The EKC between CDW generation and economic development was established for the whole country, North China, Northeast China, East China, Central South China, Southwest China and Northwest China. Three main factors based on the STIRPAT theoretical model were identified and explained into a framework to reduce CDW generation. The results provided a useful theoretical basis and data support guide for devising effective policies and regulations for the Chinese context. The findings from this study can ultimately support policymakers and waste managers in formulating effective policies for waste management strategies and CDW-specific legislation. Additionally, it can help the coordinated reduction of CDW generation across regions in China and can support construction enterprises (in their development strategies), similar developing economies and foreign firms planning to operate in China. This study contributes to the field through the STIRPAT model on driving factors of CDW generation in the Chinese context, in different regions.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-07
      DOI: 10.1108/ECAM-10-2020-0887
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Defining social value in the public procurement process for works

    • Free pre-print version: Loading...

      Authors: Brandsford Kwame Gidigah, Kofi Agyekum, Bernard K. Baiden
      Abstract: Though the Public Procurement Act of Ghana makes room for specific socio-economic policies (environmental, social, economic and other policies which are intended to promote social and economic impact), there is no explicit definition and provision for social value as an evaluation criterion, culminating in the absence of a definition in the Act. This paper elicits the conception and understanding of social value from stakeholders in the Ghanaian construction industry. The study adopted a qualitative method that relied on a semi-structured interview of 30 participants purposively drawn from Western, Western North and Central regions of Ghana. An inductive thematic analysis approach, which involved identifying repetitions, exploring similarities and differences, noting linguistic connectors, and a framework were employed to analyse the data. The study established no single definition or explanation for social value in the construction industry in Ghana. However, it was revealed from the study that the concept of social value could be defined from the functional perspective of the definer, particularly from the perspective of a Procurement Officer, Works Engineer, and a Quantity Surveyor. A new insight from the study that differs from the body of literature is that participants equated benefits derived from physically constructed projects as social value. The study has implication for public administration and practice regarding the decision-making process in the construction industry in Ghana. It provides a vital awakening on social value as a criterion in evaluating construction works procurement in Ghana. The ability of participants to equate the benefits derived from executed construction projects as social value creates a new perspective on understanding the meaning of social value in the procurement of works construction. The study contributes to the state-of-the-art and ongoing discourse on the concept of social value globally. The findings create an important catalyst for social value research in the Ghanaian construction industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-07
      DOI: 10.1108/ECAM-10-2020-0848
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Exploring the critical waste factors affecting construction projects

    • Free pre-print version: Loading...

      Authors: Mohamed Saad Bajjou, Anas Chafi
      Abstract: Waste is typically encountered during the building's life cycle, from the design phase, through the construction phase, to modification and demolition. Most of these construction wastes are unnoticed or unattended by project managers, which lead to serious environmental problems. Effective waste reduction strategies will require a thorough and detailed understanding of the causes of construction waste. Hence, this paper aims to explore critical waste factors (CWFs) affecting the performance of construction projects. An extensive literature review was carried out to determine these factors based on previous studies, from which a questionnaire was developed. Series of statistical analyses such as reliability analysis, Spearman Correlation, Kruskal–Wallis and factor analysis were performed on a total of 330 valid responses to identify latent factors responsible for wastes occurrence. This study reveals 31 CWFs through evaluation of prior relevant studies carried out in several countries and then adjusted and validated through semistructured interviews. The significant differences in views within various groups of respondents with different organizational characteristics are highlighted. The results of factor analysis showed that there are six principal components extracted with 66.3% of variance explained (material-related factors; subcontractors and workers; planning, communication and coordination; people involvement and financial issues; people development strategies; and external factors). This study differs from other studies in the literature by gathering all relevant waste factors including those related to nonphysical waste such as time, budget, workers and equipment. Furthermore, this paper will be of great interest to both practitioners and researchers since it brings various recommendations concerning the prevention/reduction of waste through lean construction for more sustainable construction projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-07
      DOI: 10.1108/ECAM-12-2020-1097
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Mixed qualitative–quantitative approach for bidding decisions in
           construction

    • Free pre-print version: Loading...

      Authors: Emad Mohamed, Parinaz Jafari, Ahmed Hammad
      Abstract: The bid/no-bid decision is critical to the success of construction contractors. The factors affecting the bid/no-bid decision are either qualitative or quantitative. Previous studies on modeling the bidding decision have not extensively focused on distinguishing qualitative and quantitative factors. Thus, the purpose of this paper is to improve the bidding decision in construction projects by developing tools that consider both qualitative and quantitative factors affecting the bidding decision. This study proposes a mixed qualitative-quantitative approach to deal with both qualitative and quantitative factors. The mixed qualitative-quantitative approach is developed by combining a rule-based expert system and fuzzy-based expert system. The rule-based expert system is used to evaluate the project based on qualitative factors and the fuzzy expert system is used to evaluate the project based on the quantitative factors in order to reach the comprehensive bid/no-bid decision. Three real bidding projects are used to investigate the applicability and functionality of the proposed mixed approach and are tested with experts of a construction company in Alberta, Canada. The results demonstrate that the mixed approach provides a more reliable, accurate and practical tool that can assist decision-makers involved in the bid/no-bid decision. This study contributes theoretically to the body of knowledge by (1) proposing a novel approach capable of modeling all types of factors (either qualitative or quantitative) affecting the bidding decision, and (2) providing means to acquire, store and reuse expert knowledge. Practical contribution of this paper is to provide decision-makers with a comprehensive model that mimics the decision-making process and stores experts' knowledge in the form of rules. Therefore, the model reduces the administrative burden on the decision-makers, saves time and effort and reduces bias and human errors during the bidding process.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-04
      DOI: 10.1108/ECAM-12-2020-1060
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Assessing the expected current and future competencies of quantity
           surveyors in the Malaysian built environment

    • Free pre-print version: Loading...

      Authors: Jeffrey Boon Hui Yap, Martin Skitmore, Yi Wen Lim, Siaw-Chuing Loo, Jason Gray
      Abstract: Quantity surveying is a profession that blends engineering, construction and economics. To be competent is to have the ability to apply the set of related knowledge, skills and abilities to perform a task effectively. This paper examines the competency requirements for quantity surveyors (QSs) in the face of changing and increasing client needs. Based on a detailed meta-analysis of the literature, 12 basic/core and 16 evolving competencies are identified. Primary data were gathered through a field survey involving practicing QSs from client, consultant and contractor organisations, and university students undertaking QS programmes in Malaysia. The data obtained were analysed using both descriptive and inferential statistical tools. The significance of the basic/core and evolving competencies are presented. Overall, the most important contemporary skills are cost planning, valuation of works, measurement/quantification and contract documentation. The evolved roles require expertise in communication and negotiation, ethics and professional conduct and value management. The analysis of variance (ANOVA) indicates there are misaligned expectations of the proficiency levels needed to provide contemporary and future services between practitioners in client/consultant organisations, contractors and new generation students. The findings provide guidance on the education, training and practice of quantity surveying to deal with emerging challenges in the dynamic built environments in Malaysia and beyond.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-03
      DOI: 10.1108/ECAM-01-2021-0091
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Research on the refinancing capital structure of highway PPP projects
           based on dynamic capital demand

    • Free pre-print version: Loading...

      Authors: Wenhua Hou, Lun Wang
      Abstract: With the majority of highway projects in China having entered their operational phases, the maintenance and repair of the pavement is receiving increasing attention. One problem that needs to be addressed urgently is that of how to raise the proper funds for highway maintenance to ensure the sustainable operation of the project. To this end, the aim of this study is to investigate the capital demand for operation and maintenance of a project by means of a refinancing scheme, in order to reduce the possibility of project bankruptcy and to enhance the economic value of the project. Based on an analysis of the dynamic complexity of the highway pavement maintenance system, a Markov model is used to predict pavement performance, and an optimal capital structure decision model is proposed for highway public–private partnership (PPP) project refinancing, using the method of system dynamics (SD). The proposed model is then applied to a real case study. Results show that the proposed model can be used to predict accurately the dynamic changes in the demand for road maintenance funds and refinancing during the period of operation, before making the optimal decision for the refinancing capital structure. Although many scholars have studied the optimal refinancing capital structure of PPP projects, the dynamic changes inherent in the demand for maintenance funds for highway PPP projects are seldom considered. Therefore, in the approach used here the influence of the dynamic change of road maintenance capital demand on refinancing is investigated, and SD is used for the optimal capital structure decision-making model of highway PPP project refinancing, to make the decision-making process more reasonable and scientific.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-02
      DOI: 10.1108/ECAM-05-2020-0321
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Project scheduling and performance prediction: a fuzzy-Bayesian network
           approach

    • Free pre-print version: Loading...

      Authors: Pejman Rezakhani
      Abstract: Despite the extensive research in project risk management and availability of several techniques and tools, quantifying uncertainty in project schedules remains a challenge. Current risk analysis models suffer from several shortcomings that need to be addressed to provide more reliable and valid schedules. This paper aims to present a dynamic decision support system with the purpose of providing project managers with necessary tool for making real-time informed decisions. The proposed approach incorporates the widely accepted critical path method (CPM) calculations in a Bayesian network (BN). BN is employed to conduct inferencing and causal analysis and provide probabilistic results, which can improve the decision-making process. Time parameters of each activity in the CPM network is modeled by a set of simulation nodes in the BN. Prior probability distribution of activities duration is extracted from experts using a fuzzy analytical solution. The model proposed in this paper is able to address some key outstanding issues of current project scheduling techniques through: (1) modeling the causality among different sources of schedule uncertainty, (2) minimizing uncertainty in experts' evaluations, (3) assessing effects of unknown risk factors and (4) using actual activity data for learning the behavior of project and predicting crew productivity. The purposed methodology provides a framework for the new generation of project schedule analysis tools that are better informed by available knowledge and data, and hence, more reliable and useful.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-02
      DOI: 10.1108/ECAM-07-2020-0540
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Construction time prediction model for public building projects

    • Free pre-print version: Loading...

      Authors: Shambel Kifle Alemu
      Abstract: The aim of the study was to develop a practical construction time model for public building projects in Addis Ababa, Ethiopia. This research work used regression analysis and also exploratory scatter and residual plot techniques. Simple and multiple regressions were used for the investigation of the best fit time model. The analyses were carried out using IBM SPSS statistical software, version 20. The result revealed that the Bromilow time-cost principle was moderately applicable. However, the cubic regression model (CUB) was found a better time-cost relationship. On the contrary, the study has shown a poor relationship between actual time and gross floor area. Furthermore, multiple linear regression analysis (MLR) consists of three statistically significant variables were found a better fit time model. The study is limited to only six project scope factors. Further research is recommended to include more building projects of similar type and implications of other factors to improve the reliability of the models. The developed model was not intended as a replacement for detailed construction scheduling techniques. The resulting model is applicable for front-end predictions of construction duration. The main parties involved in the building projects should apply the model for benchmarking a precise construction time during the early planning phase.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-02
      DOI: 10.1108/ECAM-11-2020-0975
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • A hybrid approach for investigating impacts of leadership dynamics on
           project performance

    • Free pre-print version: Loading...

      Authors: Lan Luo, Limao Zhang, Xian Zheng, Guangdong Wu
      Abstract: This paper proposes a novel hybrid simulation approach that incorporates the structural equation model (SEM) and system dynamics (SD) to investigate the impacts of leadership dynamics on project performance under different scenarios. SEM is used to identify and validate a correlation between leadership variables and project performance statically. On this basis, the SD model is constructed to depict a system model connecting the leadership and project performance. Different scenarios are simulated to dynamically model the variation in leadership on the evolution of project performance. Results indicate that (1) leadership can be divided into personal ability, relationship atmosphere and organizational strategy in complex construction projects; (2) personal ability, relationship atmosphere and organizational strategy positively correlate with project performance over time; and (3) L1 (stress management ability), L7 (team building) and L17 (institution support) are the leading factors influencing project performance and should be paid more attention under limited resources. This research contributes to (1) the state of the knowledge by proposing a hybrid methodology that can systematically model the impacts of leadership dynamics on project performance over time and (2) the state of the practice by gaining a better understanding of the strategy of resource distribution for enhancing project performance in complex construction projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-01
      DOI: 10.1108/ECAM-02-2020-0094
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Team composition in relational contracting (RC) in large infrastructure
           projects: a Belbin’s team roles model approach

    • Free pre-print version: Loading...

      Authors: Farshid Rahmani, Christina Scott-Young, Allen Tadayon, Jacobus Daniel van der Walt
      Abstract: The aim of this study is to broaden the understanding of the set of knowledge, skills, attributes and experience (KSAE) that teams should demonstrate and the necessary roles they need to play within the team in Relational Contracting (RC). This research seeks to answer three questions: first, what KSAEs are required in a team operating under RC, second, which of the identified KSAEs are more important to enable an integrated team to perform effectively and third, how do these required KSAEs correspond to the major role clusters identified in Belbin’s team role model' In-depth interviews with 25 experts and key management representatives in infrastructure construction in Australia were conducted to enable detailed discussion of the research questions. Sixteen behavioural traits and four knowledge and experience areas were identified. The findings highlight that in RC, team members and especially leaders and managers need to be competent in people-oriented roles, above all others. This research mainly captured the perspectives of personnel working in state government infrastructure departments. Further research is recommended to explore the perceptions of employees in private construction companies. By aligning the roles required for RC with the team role clusters of the Belbin’s team roles assessment tool, this study will be useful for identifying suitable members to form high-performance project teams. The findings of this paper can inform government infrastructure organisations and construction companies as to which roles are more critical when selecting fit-for-purpose teams to successfully deliver large infrastructure projects procured under the RC method.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-06-01
      DOI: 10.1108/ECAM-11-2020-0941
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • A novel approach to selecting the best partner for high-speed rail firms

    • Free pre-print version: Loading...

      Authors: Na Zhang, Xiaopeng Deng, Bon-Gang Hwang, Muchao Bi, Amin Mahmoudi
      Abstract: This paper aims to develop a partner selection approach for the high-speed rail (HSR) firms from the perspective of achieving competitive advantage in the international competitive bidding sphere. The current study developed a partner selection approach based on the evolutionary game theory. Firstly, the current study identified the influencing variables and logical formation path of competitive advantage on the international HSR project by literature review and case analysis. After that, a pay-off model was developed based on the theoretical foundation. Meanwhile, the evolutionary stable strategy was analyzed for different combinations of initial pay-offs. A real-world case was simulated to verify the effectiveness of the developed approach. The simulation results secured support from three industry professionals, indicating the developed approach is valid. The current study can help HSR firms to select their partners and develop a cooperation strategy from the perspective of winning awards. Also, the proposed approach is based on the advantage driving variables and formation path, which can contribute to HSR firms' understanding of the sources of competitive advantage.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-31
      DOI: 10.1108/ECAM-02-2021-0110
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Construction projects delay mitigation using integrated balanced scorecard
           and quality function deployment

    • Free pre-print version: Loading...

      Authors: Murat Gunduz, Nasser H. Al-Naimi
      Abstract: Delays occur mostly in the construction process of many projects, which can have a consequent effect on the overall performance of the project in areas such as profitability, efficiency and safety. This study aims to suggest a structure that can be applied to manage construction projects effectively and, thus, to reduce delays. The integrated balanced scorecard (BSC) and quality function deployment (QFD) framework proposed in the present study enabled the identification and ranking of the objectives of the financial perspective and the enablers of construction delay mitigation. This will help construction industry professionals prioritize the enabling factors that influence the financial perspective, thereby helping them focus on the achievement of the most important ones which subsequently results in efficiency. Consequently, more tasks are accomplished with the use of less time and resources as the actions tend to be more narrowly focused on the achievement of the most important factors such as client and contractor-related factors, as opposed to the low-value adding factors. A literature review was conducted to determine the essential factors that would help resolve or reduce delays. A total of 41 mitigation factors (seven financial objectives and 36 enabler objectives) were identified and categorized into four BSC perspectives: financial, client, contractor and project management team, and innovation and learning. Two management tools, the BSC and QFD, were used to develop the system based on the mitigation factors defined. The results of this study show that the most significant factors affecting the achievement of the financial objectives of the project are mainly customer-related factors, accompanied by factors related to contractors and project management teams. With the fishbone diagram and cause and effect analysis, the proposed BSC and QFD system provides a long-term approach for all stakeholders to help professionals in the construction industry prioritize and reduce delays more effectively. Moreover, the findings of the present study highlight the utility of the integrated BSC and QFD framework in quantifying the strengths of association of different objectives of the financial perspective and the enablers of construction delay mitigation. The contribution of this paper to the body of knowledge is the proposed integrated structure for BSC and QFD that can serve as a comprehensive and structural approach to rating the essential enabling delay mitigation factors based on the magnitude of their effects on the financial performance of the project. The proposed framework can be considered a novel tool since this is the first integrated BSC and QFD framework for construction delay mitigation. Finally, the proposed BSC and QFD framework, along with the fishbone diagram and cause and effect analysis, provides a long-term strategy for all stakeholders to mitigate delays. Thus, the proposed integrated BSC and QFD framework can serve as a systematic and structural approach for measuring the strength of influence of the enablers of delay mitigation against the financial perspective.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-28
      DOI: 10.1108/ECAM-12-2020-1082
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Identification and assessment of the unionization factors of the US
           electrical construction trade

    • Free pre-print version: Loading...

      Authors: Hisham Said, Aishwarya Mali, Ajay Deshmukh
      Abstract: Construction trade unions have been a vital force in improving the job standards and wellbeing of trade workers. However, the union membership in the construction industry has dropped by half between 1983 and 2017. The objective of this study is to identify and assess the controlling factors of construction electrical trade unionization in the United States. The study involved four main steps. Literature review and industry townhall meetings were conducted to identify the electrical trade unionization factors. A new unionization trend metric was developed using available union market share data to quantify the growth and decline of local unions. Mixed-mode surveying was used to collect questionnaire and interview data on the unionization factors in different local units of the electrical trade union. Finally, the survey data from the questionnaire and interviews were merged and their correlation with the unionization trend data was assessed. The study found that the unionization of this specialty trade is dependent on increasing the crew ratio, expanding the non-apprenticeship union membership program, organizing larger contractors, and continuing the union focus on public and heavy industrial projects. The study contributes to the construction management body of knowledge by providing a data-driven industry-wide assessment of the factors that affect electrical construction unionization. The study advances the understanding of construction trade unions by narrowing the theory-practice knowledge gap, illustrating the use of macro quantitative empirical research methods, and developing a new unionization trend metric.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-27
      DOI: 10.1108/ECAM-12-2020-1062
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • An analytical review of construction law research

    • Free pre-print version: Loading...

      Authors: Tahereh Khademi Adel, Mohsen Modir, Mehdi Ravanshadnia
      Abstract: This article investigates recent studies of construction law in different areas, including civil engineering; construction building technology; transportation; multidisciplinary studies and the environment, as well as their changing trends in the years between 2000 and 2019. The transformation trend of construction law is investigated based on collecting main keywords from the Web of Science (WoS) database selectively from different viewpoints and using Scientometric Analysis by CiteSpace and HistCite software. The top journals, top universities, and the most active countries in publishing and expanding construction law, keyword co-occurrence network, top keywords with the strongest citation bursts, cluster analysis, the most cited articles are determined both generally and yearly. By interpreting the Scientometric results, focal points of legal issues and their changing trends during the last two decades are reviewed. Scholars’ data concerning interesting topics, construction law industry future needs, knowledge gaps, and speculation about future views and direction are obtained. Restrictions on data search, limiting the category of studies to a specific domain, and limiting research time to 20 years are some limitations of this article. All these results address legal issues, comprehensive laws, plenary contracts, and efficient dispute resolution based on cultures and themes. Given the importance of legal issues at all stages of the construction cycle, a review of this multidisciplinary and new science over the past two decades can provide hot issues, knowledge gaps, and a better view of the future.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-25
      DOI: 10.1108/ECAM-05-2020-0306
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • An IoT device for striking of vertical concrete formwork

    • Free pre-print version: Loading...

      Authors: Shemin T. John, Athul Mohan, Merin Susan Philip, Pradip Sarkar, Robin Davis
      Abstract: Timely removal of formwork is one of the crucial aspects of construction management that directly influences the safety and quality of the structure as well as the economy of the project. Code recommendations in this regard are not widely practiced because of the difficulties in their implementations. Also, such code recommendations are not robust for all the possible construction conditions. The present paper proposes an IoT-enabled system that notifies the minimum striking time of vertical formwork based on a specified target compressive strength. An IoT device is proposed for the timely removal of vertical formwork by monitoring of early age concrete compressive strength in real-time. The maturity method is utilized for this purpose. The implementation of the proposed system is demonstrated on three concrete columns. The proposed system is found to be suitable for any construction condition. The proposed system is a novel, cost-effective, IoT-enabled real-time monitoring system which includes features like cloud connectivity and remote monitoring. This system can be easily implemented at the site without any human intervention. The study explores the development of an IoT device for the timely removal of vertical formwork which will ensure quality, safety and productivity in concrete construction. This paper is the first attempt to determine the minimum striking time of vertical formwork using IoT-based technology.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-21
      DOI: 10.1108/ECAM-10-2020-0859
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • A Bayesian belief network predictive model for construction delay
           avoidance in the UK

    • Free pre-print version: Loading...

      Authors: Peipei Wang, Peter Fenn, Kun Wang, Yunhan Huang
      Abstract: The purpose of this research is to advise on UK construction delay strategies. Critical delay factors were identified and their interrelationships were explored; in addition, a predictive model was established upon the factors and interrelationships to calculate delay potentials. The critical causes were identified by a literature review, verified by an open-ended questionnaire survey and then analysed with 299 samples returned from structured questionnaire surveys. The model consisted of factors screened out by Pearson product–moment correlational coefficient, constructed by a logical reasoning process and then quantified by conducting Bayesian belief networks parameter learning. The technical aspect of construction project management was less critical while the managerial aspect became more emphasised. Project factors and client factors present relatively weak impact on construction delay, while contractor factors, contractual arrangement factors and distinctively interaction factors present relatively strong impact. This research does not differentiate delay types, such as excusable vs non-excusable ones and compensable vs non-compensable ones. The model nodes have been tested to be critical to construction delay, but the model structure is mostly based on previous literature and logical deduction. Further research could be done to accommodate delay types and test the relationships. This research updates critical delay factor list for the UK construction projects, suggesting general rules for resource allocation concerning delay avoidance. Besides, this research establishes a predictive model, assisting delay avoidance strategies on a case-by-case basis.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-19
      DOI: 10.1108/ECAM-10-2020-0873
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Ambiguity factors in construction contracts entailing conflicts

    • Free pre-print version: Loading...

      Authors: Kerim Koc, Asli Pelin Gurgun
      Abstract: Conflicts, claims and disputes are inherent in most construction projects. Acceptable degree of commonality in the interpretation of contract provisions is critical in effective contract administration. This study aims to assess the effects of contract ambiguity factors on construction conflicts, highlighting the causes of divergent interpretations using fuzzy technique for order of preference by the similarity-to-ideal-solution (TOPSIS) method. Fuzzy TOPSIS framework with 27 ambiguity factors is constructed by conducting a comprehensive literature review, accompanied by a pilot study. Questionnaire survey is formed, and one-to-one interviews are arranged with 35 contract administration experts. The findings indicate that (1) ambiguity due to excessive changes in the bill of quantity (BOQ) (including ambiguous provisions related to BOQ changes), (2) incomplete clauses that do not describe the scope of the intended work purely, (3) ambiguity due to excessive amendments in the scope of works (including ambiguous provisions related to scope changes), (4) ambiguous enforceability including excessive demands and (5) ambiguous goal and performance requirements are the top five ambiguity factors affecting construction conflicts. Presented framework is performed referring to ambiguity factors in all type of construction contracts in the general sense. However, the identified factors may vary depending on the project type, contract type, procurement method or use of standard contract forms (such as NEC, FIDIC). The literature lacks the investigation of ambiguity factors in construction contracts, yet the assessment of the effects of contract ambiguity is essential to minimize conflicts.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-18
      DOI: 10.1108/ECAM-04-2020-0254
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Dynamic evaluation of thermal comfort scenarios in a Colombian large-scale
           social housing project

    • Free pre-print version: Loading...

      Authors: Alvaro Garay, Angie Ruiz, Jose Guevara
      Abstract: This study aims to analyze the technical, environmental, economic and thermal comfort impacts of implementing passive measures and heating systems in Ciudad Verde, a large-scale social housing project located at the periphery of Bogota, Colombia. A system dynamics (SD) model is proposed to evaluate scenarios through counterfactual experiments, including technical, environmental and economic components. Model inputs are obtained from building energy simulation models and data collected from official reports, public policy documents and construction records. Results suggest that the use of heating systems is the best choice to achieve thermal comfort conditions throughout the day. However, both the capital expenditures and CO2 emissions associated with such system make their adoption very difficult. In line with that, the use of heating systems in combination with passive measures stands out as a viable solution since their costs are affordable and their use contributes to reducing CO2 emissions. The proposed model recreates the dynamics underlying social housing construction processes, the adoption of heating systems and passive measures in low-income dwellings and their corresponding impact on CO2 emissions and indoor thermal comfort conditions. The model can be employed as a support tool in the formulation of social housing policies associated with thermal comfort specifications. In this way, the model represents a first step toward incorporating thermal-related variables into the decision-making processes related to social housing planning and development.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-04
      DOI: 10.1108/ECAM-09-2020-0684
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Green project management from employees' perspective in Hong Kong's
           engineering and construction sectors

    • Free pre-print version: Loading...

      Authors: Wai Ming To, K.H. Lam
      Abstract: The study investigates employees’ perceptions of green project management in Hong Kong's engineering and construction sectors. Green project management attributes were identified and categorized in terms of organization and process aspects based on a literature review. A questionnaire was developed to collect responses from employees working in Hong Kong's engineering and construction sectors. Respondents perceived “using Design for Environment approach,” “training employees about green project management” and “recycling the used or excessive materials/components” as the most important attributes. Generally, females gave higher importance ratings than males to most attributes. Respondents who had higher education qualifications or held senior positions perceived green project management attributes as more important than their counterparts with lower education qualifications or in lower positions. Green project management was found to have four distinct factors: “Management Commitment,” “Green Technologies and Processes,” “Green Partnerships” and “External Communication.” The study is one of the first empirical works on green project management in Hong Kong's engineering and construction sectors. It demonstrates that green project management should be characterized as a multidimensional concept.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-04
      DOI: 10.1108/ECAM-10-2020-0838
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Establishing the synergy between the perceptions of construction
           professionals and the phases of value management

    • Free pre-print version: Loading...

      Authors: Mujahed Thneibat, Motasem Thneibat, Bader Al-Tamimi
      Abstract: This study aims to lay the groundwork for the potential application of value management (VM) in construction projects. This paper presents a critical review on the status of VM in a developing country and highlights the role of perceptions on critical success factors (CSFs) for the phases of VM studies, as the participants in a VM study should consider CSFs tailored to the local context. A series of interviews and a questionnaire were conducted to understand the drivers, perceptions, barriers, and CSFs of VM in the Jordanian construction industry. Although descriptive statistics were used to analyze the status of VM, a structural equation modeling (SEM) approach was adopted to highlight the interrelationships between perceptions and the CSFs of the three phases of VM (i.e. pre-workshop, workshop, and implementation). The descriptive analysis revealed conflicting viewpoints for perceptions and drivers. Most practitioners acknowledged little awareness of VM phases, and the SEM results indicated that perceptions of VM, in terms of its capacity in improving the scope and objectives of the project, and reducing overall costs, most strongly influenced the CSFs of the implementation phase in terms of support and clear plan for implementation, and had the least influence on the pre-workshop phase. Further, the perceptions had a moderate effect on the CSFs of the workshop phase and it tended to be positive, highlighting the importance of function analysis in this phase. This is the first study to reveal the status of VM in Jordan in terms of adoption, drivers, perceptions, barriers and CSFs; no prior studies have investigated how perceptions can affect the CSFs of each phase of VM and the endorsement of VM by the construction industry. The contributions of this study include linking the perceptions of construction professionals with the CSFs of VM.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-05-04
      DOI: 10.1108/ECAM-11-2020-0987
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Exploring the structure and emerging trends of construction health
           management: a bibliometric review and content analysis

    • Free pre-print version: Loading...

      Authors: Huakang Liang, Xiaoxiao Shi
      Abstract: The demanding nature of construction industry poses serious health risks to construction workers. In recent years, construction health management (CHM) has gained much attention to ensure a healthier and safer workplace. However, there is still lack of a systematic review to bring together the disaggregated studies and determine the development status of this research field. As essential for addressing health issues in construction industry, a bibliometric and content-based review on of previous CHM studies would be presented in this paper. In total, 753 journal articles published in Web of Science core collection from 1990 to 2020 were examined using a systematic review. Bibliometric analysis concentrated on the analysis of publication and citation pattern of CHM research while content analysis was employed to identify main health hazards, levels of analysis and topical focuses. The results indicated that the USA was the leading country in this research domain. Five health hazards together with 17 research topics at different levels of analysis were classified to allow researchers to track the structure and temporal evolution of the research field. Finally, three emerging trends and a set of research agenda were proposed to guide future research directions. It is the first to highlight the issues of occupational health management from the perspective of construction workers. It contributes to the field of construction health management by clarifying the knowledge structure, emerging trends and future research directions. It offers valuable guidance and in-depth understanding to researchers, practitioners and policymakers to further promote construction workers' health performance.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-30
      DOI: 10.1108/ECAM-01-2021-0080
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • COVID-19: main challenges during construction stage

    • Free pre-print version: Loading...

      Authors: Francisco Sierra
      Abstract: This paper reviews the current literature on the major challenges faced by building contractors in the UK due to COVID-19 to create an evaluation framework. A PRISMA scoping review systematically maps the information published and establishes the potential challenges, as a precursor to a literature review that synthesises the data available to establish an initial COVID-19 evaluation framework to build a rationale for a future series of studies. The research identified these seven challenges: health and safety on-site, economic cost, possible legal exposures, manpower availability, instability of the supply chain and subcontractors, and the uncertainty related to the constant and unpredictable evolution of the pandemic. The magnitude of each challenge was also found to differ depending on the size of the contractor, the rigor of local regulations and the sector where the contractor works. This research contributes to increasing understanding on the subject and provides an initial assessment framework, based on these seven parameters, so that contractors can analyse their weaknesses and plan specific priorities so that their companies can remain competitive, minimising the impact of COVID-19 and possible future waves. This research is timely and relevant as it produces the first academic review on how COVID-19 has affected contractors and the construction stage. This document gives a holistic view of the new scenario created by COVID-19 and creates a self-assessment system for contractors to test their resistance to COVID-19.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-30
      DOI: 10.1108/ECAM-09-2020-0719
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Knowledge discovery of correlations between unsafe behaviors within
           construction accidents

    • Free pre-print version: Loading...

      Authors: Shengyu Guo, Yujia Zhao, Yuqiu Luoren, Kongzheng Liang, Bing Tang
      Abstract: Knowledge discovery related to unsafe behaviors promotes the performance of accident prevention in construction. Although numerous studies on accident causation models have discussed the correlations of unsafe behaviors with various factors (e.g., unsafe conditions), limited research explores correlations between unsafe behaviors within accidents. The purpose of this paper is mining strong association rules of unsafe behaviors from historical accidents to clarify this kind of tacit knowledge. A case study was adopted as the research approach, in which accident records from building and urban railway construction in China were selected as data resources. The groups of unsafe behaviors extracted from accident records were expressed by the definitions of unsafe behaviors from safety regulations and operating procedures. Frequent Pattern (FP)-Growth algorithm was used for association rule mining, and the critical correlations between unsafe behaviors were represented by the effective strong rules. The findings identify and distinguish correlations between unsafe behaviors within construction accidents. In building construction, workers and managers should pay attention to preventing unsafe behaviors related to personal protective equipment and machines and equipment. In urban railway construction, workers should especially avoid unsafe behaviors of inadequately dealing with environmental factors. Tacit knowledge is transferred to explicit knowledge as the critical correlations between unsafe behaviors within accidents are determined by the effective strong rules. Additionally, the findings provide practice guidance for safety management, to collaboratively control unsafe behaviors with strong correlations. This study contributes to the body of safety knowledge in construction and provides a further understanding of how construction accidents are caused by multiple unsafe behaviors.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-30
      DOI: 10.1108/ECAM-09-2020-0745
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Predicting delays in prefabricated projects: SD-BP neural network to
           define effects of risk disruption

    • Free pre-print version: Loading...

      Authors: Ying Zhao, Wei Chen, Mehrdad Arashpour, Zhuzhang Yang, Chengxin Shao, Chao Li
      Abstract: Prefabricated construction is often hindered by scheduling delays. This paper aims to propose a schedule delay prediction model system, which can provide the key information for controlling the delay effects of risk-related factors on scheduling in prefabricated construction. This paper combines SD (System Dynamics) and BP (Back Propagation) neural network to predict risk related delays. The SD-based prediction model focuses on dynamically presenting the interrelated impacts of risk events and activities along with workflow. While BP neural network model is proposed to evaluate the delay effect for a single risk event disrupting a single job, which is the necessary input parameter of SD-based model. The established model system is validated through a structural test, an extreme condition test, a sensitivity test, and an error test, and shows an excellent performance on aspect of reliability and accuracy. Furthermore, 5 scenarios of case application during 3 different projects located in separate cities prove the prediction model system can be applied in a wide range. This paper contributes to academic research on combination of SD and BP neural network at the operational level prediction, and a practical prediction tool supporting managers to take decision-making in a timely manner against delays.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-30
      DOI: 10.1108/ECAM-12-2020-1050
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Response of contractor behavior to hierarchical governance: effects on the
           performance of mega-projects

    • Free pre-print version: Loading...

      Authors: Hang Yin, Dan Wang, Yilin Yin, Henry Liu, Binchao Deng
      Abstract: This study aims to examine the impacts of formal and informal hierarchical governances (HGs) on the performance of mega-projects and the mediating role of contractor behavior (i.e. perfunctory and consummate behaviors) in these relationships. A total of 375 valid data entries from managers representing 375 mega-projects were analyzed through path analysis. Both formal and informal HGs exert positive effects on the performance of mega-projects. While formal HG positively affects contractor perfunctory behavior and contractor consummate behavior, informal HG affects contractor perfunctory behavior only. Contractor behavior mediates the relationship between formal HG and project performance. The impacts of potential moderators (e.g. institutional arrangement and complexity) on the relationship between HG and contractor behavior have not been considered in this study. This study is useful for owners to enhance formal HG to improve contractor perfunctory and consummate behaviors, which in turn can enhance the performance of mega-projects. This study expands the knowledge of mega-project performance management from the perspective of HG. It also contributes to the literature of contractor behavior within the context of mega-projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-29
      DOI: 10.1108/ECAM-01-2020-0073
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • The main issue working with migrant construction labor: a case study in
           Thailand

    • Free pre-print version: Loading...

      Authors: Nutchapongpol Kongchasing, Gritsada Sua-iam
      Abstract: The purpose of this paper is to study and prioritize the problems impacted on construction work together migrant laborers, by using the Delphi technique. The case study is construction work in Bangkok and metropolitan zones, Thailand. The framework of the perceived issues caused by working with migrant construction labors especially migrant construction laborers from neighboring countries were identified from literature reviews. The issue list was sent to 162 experts seeking for their opinions. Subsequently, a questionnaire was created from 58 items of suitable issue lists according to expert's opinions. The questionnaires were then submitted to 147 respondents from construction contractor companies. Their responses were calculated and prioritized by means of the Delphi technique The polling data showed its constancy on the second round of survey. There were 34 out of 58 items passed consensus criteria. The issue “Foreman obtained incompetent or inadequate trained migrant labors when relocate them from/to other site or job” ranked 1st in priority ranking with the average score of 4.56. Subproblems were appropriately prioritized according to their mean scores. The results of this research were expected to facilitate construction operators in making appropriate decisions and primary solution concerning main issue factors in working with migrant labors, in order to help even more increasing competition efficiency in Thai construction industries. The research provides a list of main issue occurred in the case study. These outcomes are also expected to provide important information for other case studies on the issue working with migrant construction labor.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-29
      DOI: 10.1108/ECAM-05-2020-0376
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Impact of organizational decentralization degree on job satisfaction and
           job performance: a hierarchical linear model analysis for construction
           projects

    • Free pre-print version: Loading...

      Authors: Jun Sun, Cynthia Changxin Wang, Zhiling Yang, Tianshu Yu, Jintao Li, Xiaoqian Xiong
      Abstract: Modern construction projects are increasingly complex and rely heavily on multi-discipline collaboration, and this leads to a more and more decentralized project-based structure widely adopted in the construction industry. While job satisfaction (JS) and job performance (JP) have been heavily studied previously, few considered the impact of organizational structure and none investigated the relationship between the organizational decentralization degree with JS and JP. This research aims to fill this research gap and investigate the impacts of organizational decentralization degree on JS and JP and facilitate a better project management practice for large-scale construction projects. This research firstly establishes four hypotheses based on the literature review on general project-based organizations, then the hypotheses are tested by a survey covering 25 large complex construction projects in China. A hierarchical linear model analysis was carried out to analyze the survey data and to study the relationships between organizational decentralization degree, job satisfaction and job performance. Analysis results show that projects' employees' JS and JP are positively correlated with the construction project organizations' decentralization degree, respectively. The decentralization degree has a higher impact on JS than on JP. Employees' JP is positively correlated with their JS, and a higher decentralization degree leads to a more significant positive impact that JS puts on JP. The findings are new evidence of how construction organization structure and its decentralization degree can affect project employees' JS and JP. This research provides valuable guidance for the industry's management practice and is particularly important for large, complex and highly decentralized construction projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-29
      DOI: 10.1108/ECAM-07-2020-0503
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Environmental impact assessments during construction stage at different
           geographic levels – a cradle-to-gate analysis of using sustainable
           concrete materials

    • Free pre-print version: Loading...

      Authors: Malindu Sandanayake, Ramya Kumanayake, Achini Peiris
      Abstract: The main objective of the study is to present a systematic process that can assess, compare and benchmark different geographical levels environmental impacts of using sustainable materials at construction stage. Current study presents a methodological framework to evaluate environmental impacts at the construction stage of using sustainable materials through a cradle-to-gate process based quantitative LCA study. Scenario analyses and an optimisation analysis using Monte-Carlo simulation are conducted to investigate the influence of external factors on environmental impacts at different geographical regions. Materials account for 98% of greenhouse gas (GHG) emissions. Carbon monoxide (CO) and non-methane volatile organic compounds (NMVOC) record significant non-GHG emissions. Particulate matter (PM10) emissions are significant from transportation and equipment. High significance of global warming potential (GWP) (38.98%) and photochemical oxidation formation potential (POFP) (34.49%) at global level and eutrophication potential (EP) (52.83%) and human toxicity potential (HTP) (25.30%) impacts at local level were observed. Shortest transportation distance reduces 14.91% PM10 and 4.69% nitrous oxide (NOx) emissions. Inventory variations have major influence on POFP impact at global level. Local level impacts are not significantly affected by inventory variations. Optimisation analysis indicated, high fly ash in concrete increase local level carbon emissions, if OPC concrete transportation distance is less than 23.7 km. Use of case-specific information for validation may lack generalisation. However, methodology can be used for future sustainable decision making over using sustainable materials in construction. The study estimate environmental impacts at different geographical levels when sustainable materials are used for construction.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-29
      DOI: 10.1108/ECAM-10-2020-0846
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Exploring a comprehensive knowledge map for promoting safety management
           research in the construction industry

    • Free pre-print version: Loading...

      Authors: Liang Wang, Yiming Cheng
      Abstract: The purpose of this paper was to map the safety management research of construction industry by scientometric analysis, which can predict important highlights and future research directions of safety management research in the construction industry. As an important issue in the construction industry, safety management issues have been researched from different perspectives. Although previous studies make knowledge contributions to the safety management research of construction industry, there are still huge obstacles to distinguish the comprehensive knowledge map of safety management research in the construction industry. This study applies three scientometric analysis methods, collaboration network analysis, co-occurrence network analysis and cocitation network analysis, to the safety management research of construction industry. 5,406 articles were retrieved from the core collection database of the Web of Science. CiteSpace was used for constructing a comprehensive analysis framework to analyze and visualize the safety management research of construction industry. According to integrating the analysis results, a knowledge map for the safety management research of construction industry can be constructed. The analysis results revealed the academic communities, key research topics and knowledge body of safety management research in the construction industry. The evolution paths of safety management research in the construction industry were divided into three development stages: “construction safety management”, “multi-objective safety management” and “comprehensive safety management”. Five research directions were predicted on the future safety management research of construction industry, including (1) comprehensive assessment indicators system; (2) intelligent safety management; (3) cross-organization collaboration of safety management; (4) multilevel safety behavior perception and (5) comparative analysis of safety climate. The findings can reveal the overall status of safety management research in the construction industry and represent a high-quality knowledge body of safety management research in the construction industry that accurately reflects the comprehensive knowledge map on the safety management research of construction industry. The findings also predict important highlights and future research directions of safety management research in the construction industry, which will help researchers in the safety management research of construction industry for future collaboration and work.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-29
      DOI: 10.1108/ECAM-11-2020-0984
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • Dynamic capabilities for digitalisation in the AECO sector – a
           scientometric review

    • Free pre-print version: Loading...

      Authors: Douglas Aghimien, Clinton Ohis Aigbavboa, Ayodeji Emmanuel Oke, David Edwards, Wellington Didibhuku Thwala, Chris J. Roberts
      Abstract: A scientometric review of extant literature is conducted to define and delineate upon the enabling dynamic capabilities required to engender the digitalisation of organisations operating in the architecture, engineering, construction and operations (AECO) sector. A secondary aim sought to provide direction for future studies and theories to be tested in this novel field of investigation as well as stimulate wider polemic debate amongst industry stakeholders. An interpretivist philosophical stance and inductive approach was undertaken in this study, using a grounded theory strategy. Secondary data used was sourced from the Scopus journal database using specific related keywords. VOSviewer was used to prepare co-occurrence maps based on the bibliographic data gathered. AECO organisations that seek digitalisation must possess the capability to sense and seize opportunities and threats within the business environment and reconfigure their business processes to best meet their market demand. This can be achieved by improving on attributes relating to industrial management and strategic planning, organisational learning, enterprise resource management and innovative information technology. Future studies should target novel areas such as AECO organisations' ambidexterity and service innovation. This is the first study to explore the dynamic capabilities of AECO organisations in relation to digitalisation adoption. Therefore, the research serves as a robust theoretical background for signposting AECO organisations who seek to transition to digital solutions in the fourth industrial revolution.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-29
      DOI: 10.1108/ECAM-12-2020-1012
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • The impact of natural ventilation on airborne biocontaminants: a study on
           COVID-19 dispersion in an open office

    • Free pre-print version: Loading...

      Authors: Günsu Merin Abbas, Ipek Gursel Dino
      Abstract: Biocontaminants represent higher risks to occupants' health in shared spaces. Natural ventilation is an effective strategy against indoor air biocontamination. However, the relationship between natural ventilation and indoor air contamination requires an in-depth investigation of the behavior of airborne infectious diseases, particularly concerning the contaminant's viral and aerodynamic characteristics. This research investigates the effectiveness of natural ventilation in preventing infection risks for coronavirus disease (COVID-19) through indoor air contamination of a free-running, naturally-ventilated room (where no space conditioning is used) that contains a person having COVID-19 through building-related parameters. This research adopts a case study strategy involving a simulation-based approach. A simulation pipeline is implemented through a number of design scenarios for an open office. The simulation pipeline performs integrated contamination analysis, coupling a parametric 3D design environment, computational fluid dynamics (CFD) and energy simulations. The results of the implemented pipeline for COVID-19 are evaluated for building and environment-related parameters. Study metrics are identified as indoor air contamination levels, discharge period and the time of infection. According to the simulation results, higher indoor air temperatures help to reduce the infection risk. Free-running spring and fall seasons can pose higher infection risk as compared to summer. Higher opening-to-wall ratios have higher potential to reduce infection risk. Adjacent window configuration has an advantage over opposite window configuration. As a design strategy, increasing opening-to-wall ratio has a higher impact on reducing the infection risk as compared to changing the opening configuration from opposite to adjacent. However, each building setup is a unique case that requires a systematic investigation to reliably understand the complex airflow and contaminant dispersion behavior. Metrics, strategies and actions to minimize indoor contamination risks should be addressed in future building standards. The simulation pipeline developed in this study has the potential to support decision-making during the adaptation of existing buildings to pandemic conditions and the design of new buildings. The addressed need of investigation is especially crucial for the COVID-19 that is contagious and hazardous in shared indoors due to its aerodynamic behavior, faster transmission rates and high viral replicability. This research contributes to the current literature by presenting the simulation-based results for COVID-19 as investigated through building-related and environment-related parameters against contaminant concentration levels, the discharge period and the time of infection. Accordingly, this research presents results to provide a basis for a broader understanding of the correlation between the built environment and the aerodynamic behavior of COVID-19.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-29
      DOI: 10.1108/ECAM-12-2020-1047
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • The mediating role of job stress on the relationship between job
           satisfaction facets and turnover intention of the construction
           professionals

    • Free pre-print version: Loading...

      Authors: Tharindu C. Dodanwala, Djoen San Santoso
      Abstract: The present study examines the mediating role of job stress on the relationship between job satisfaction facets and turnover intention of the construction project professionals in Sri Lanka. Data were gathered from a cross-sectional survey of 274 project-level employees of 10 construction organizations in Sri Lanka. A path analytical model is developed to assess the research hypotheses. Results support the mediation model of job stress, in which satisfaction with supervision and job security directly contributed to a reduction in stress levels, which in turn lessened the turnover intention. Full mediation is observed from supervision, and partial mediation is observed from job security. Satisfaction with pay and co-workers directly predicted a decline in turnover intention. Contrary to the authors’ expectations, the authors could not find any significant effect from promotion to job stress and promotion to turnover intention. The results further illustrated that demographic variables, i.e. gender, age and organization tenure play a role in determining employees’ stress levels. In identifying how job satisfaction facets, job stress and turnover intention are linked together, the present study added the mediating role of job stress to the previous empirical research on the relationship between job satisfaction facets and turnover intention.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-04-29
      DOI: 10.1108/ECAM-12-2020-1048
      Issue No: Vol. ahead-of-print, No. ahead-of-print (2021)
       
  • A cognitive model for understanding fraudulent behavior in construction
           industry

    • Free pre-print version: Loading...

      Authors: Huimin Hu , Xiaopeng Deng , Amin Mahmoudi
      Abstract: Previous fraud studies focused on the influence of external environmental factors rather than the actor's own cognition or psychological factors. This paper aims to explore the influence of cognitive factors on people's intention to commit fraud in the construction industry. A scenario-based questionnaire survey was conducted with 248 Chinese construction practitioners. Partial least squares structural equation modeling (PLS-SEM) was used to analyze the data. The findings showed that perceived threat possibility and perceived threat severity positively affected people's attitudes towards fraud. The reward for compliance and response cost had adverse effects on people's attitudes. Attitude towards fraud and response efficacy directly influenced people's intentions to commit fraud. The limitations of this study are that only behavioral intention data were collected, and a single scenario was designed. Despite these limitations, this study proposed a cognitive model to understand fraud in the construction industry and provided an empirical analysis using data from Chinese construction practitioners. This study reveals the impact of cognitive factors on fraud in the construction industry. The results expand the understanding of fraud and propose a cognitive intervention framework to reduce fraud.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-31
      DOI: 10.1108/ECAM-08-2021-0703
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Risk assessment and ranking in the developing countries’ construction
           industry: the case of Jordan

    • Free pre-print version: Loading...

      Authors: Muhammad T. Hatamleh , Gary P. Moynihan , Robert G. Batson , Ammar Alzarrad , Olugbenro Ogunrinde
      Abstract: Risk impedes the success of construction projects in developing countries due to planning in an unpredictable and poorly resourced environment. Hence, the literature suggests that practitioners are not fully aware of how important the risk identification process is. Some of the prior studies identified risks in developing countries without highlighting how they can be beneficial to the practitioners in the industry. Therefore, this study highlights this process and identifies the key risks that affect the Jordanian construction industry. This study adopted an exploratory sequential mixed approach, two rounds of face-to-face interviews that were conducted in Jordan among 12 experts followed by a questionnaire randomly distributed to 122 practitioners. This study utilized the relative importance index, coefficient of variation, and Mann–Whitney (U) to analyze the data. Also, the factor analysis technique was used to identify and regroup the risk factors to further understand the correlation among the risks. The result revealed an agreement among contractors’ and consultants’ responses toward allocating risks. Furthermore, several risks can be traced back to the project communication management process, highlighting a deficiency in the process. Also, four-factor groups were established, the first group includes the risk of defective design, late decisions making by other project participants and poor coordination with the subcontractor. The second group has only the risk of corruption, including bribery at sites. The third group includes stakeholders’ financial instability and inadequate distribution of responsibilities and risks. The fourth group includes adverse weather conditions and the use of illegal foreign labor. Some of the prior studies identified risks in developing countries without highlighting how they can be beneficial to the practitioners in the industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-30
      DOI: 10.1108/ECAM-06-2021-0489
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Modeling cost overrun in building construction projects using the
           interpretive structural modeling approach: a developing country
           perspective

    • Free pre-print version: Loading...

      Authors: Shahab Shoar , Tak Wing Yiu , Shamsi Payan , Majid Parchamijalal
      Abstract: Although several studies have been conducted on the causes of cost overrun, they have mainly assumed that the causes of cost overrun are independent of each other, and few of them scrutinized the complex interrelationships between the causes. To fill the gap, this study aims to investigate the mutual interactions between the causes of cost overrun using interpretive structural modeling (ISM) and proposing strategies to tackle the causes considering their interactions. Critical causes of cost overrun were identified through a comprehensive literature review. In total, 22 key causes are then refined based on the opinions of relevant experts involved in the Iranian building and construction sector. Using the nominal group technique, the causes' interactions were examined and represented via the ISM diagram. The causes were also classified using “matrix cross-reference multiplication applied to a classification (MICMAC)” technique. The results showed that price fluctuation, claims, execution delay, delay in payment and change order positioned at the highest level of the obtained model can directly result in cost overrun, and corruption and poor contract management located at the base of the model are two major root causes of cost overruns. It was also concluded that more attention should be paid to the precontract phase of the project to address and prevent corruption and managerial issues deeply rooted in this stage. The findings of this study provide a clear understanding of how different causes of cost overrun are related to each other and can ultimately assist project managers of different parties in choosing strategies to mitigate cost overrun in building construction projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-30
      DOI: 10.1108/ECAM-08-2021-0732
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Impact of emotional intelligence on the stress and safety of construction
           workers' in Saudi Arabia

    • Free pre-print version: Loading...

      Authors: Hemaid Alsulami , Suhail H. Serbaya , Ali Rizwan , Muhammad Saleem , Yassine Maleh , Zobia Alamgir
      Abstract: In a country like Saudi Arabia, where the construction industry is witnessing an impressive growth in the post-oil era, it is important to examine the occupational health and safety behaviors of construction workers (CWs). The present study aims to investigate the impact of emotional intelligence (EI) on workers' stress and safety behaviors. Data were collected from CWs (n = 265) at a major construction site in the city of Jeddah. Two questionnaires comprising 25 and 32 questions were used to measure their EI and stress levels, respectively. Furthermore, structured interviews were conducted with the managers and supervisors to inquire about the safety behavior of their respective workers. Descriptive statistics, simple and companion regression were used for data analysis. The findings indicate that EI plays an important role to enhance the safety behaviors of the CWs besides reducing their workplace stresses. Furthermore, workers' stress levels are found to negatively impact their safety behaviors, indicating that any reduction in occupational stress can reciprocally enhance their safety compliance. The findings are further discussed with the concerned stakeholders to recommend a seven-point therapeutic role of EI for the safety of CWs. Results of the study can be used by managers and supervisors of the Saudi construction industry to reduce workplace accidents and improve the productivity of their organizations.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-27
      DOI: 10.1108/ECAM-06-2021-0481
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Claim management office maturity model (CMOMM) in project-oriented
           organizations in the construction industry

    • Free pre-print version: Loading...

      Authors: Majid Parchamijalal , Saeed Moradi , Mohsen Zabihi Shirazi
      Abstract: Claim formation is a fact and a regular occurrence in construction industry projects and often leads to a waste of money and time for organizations. Organizations can, however, reduce and control claims by promoting an integrated claim management system and improving productivity in the results of the claims. Establishing a claim management office is one of the ways to help organizations achieve this. Based on library research, expert opinion and analysis of organizations' contracts as case studies and identifying the root causes of the claim, this paper proposes a claim management office maturity model and determines its levels. This paper proposes a claim management office maturity model and also determines its levels. The general structure of this model is based on three parameters: “characteristics of each level,” “requirements of each level” and “transition period of each level” in five levels, where the first level is the most basic level and level five is the highest level of the implementation of a claim management office in the organization. It can be clearly emphasized that this research is one of the first research studies that has dealt with the issue of claim management office in the construction industry and has proposed the model of maturity and development of claim management office in the organization. The use of numerous and experienced experts in achieving the results and case organizations to develop this research has increased the value and credibility of this research. This study also helps to improve the level of claim management in construction industry organizations so that these organizations can implement each level of claim management maturity model in the organization according to their competence and need for claim management. And by implementing it correctly, solve or reduce the problems of claim management in the organization and their projects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-22
      DOI: 10.1108/ECAM-04-2021-0301
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Analyzing the impact of financial policies on construction projects
           performance using system dynamics

    • Free pre-print version: Loading...

      Authors: Shahin Dabirian , Mostafa Ahmadi , Soroush Abbaspour
      Abstract: The research aims to analyze the effects of financial policies on a cash flow system to meet project performance goals and improve profitability. The policies are divided into four groups; owner related, bank-related, labor-related and supplier-related policies. This research presents a developed model for planning, forecasting and managing the cash flow in construction projects using system dynamics (SD). A System Dynamics (SD model is developed to evaluate the effect of different financial policies on construction project performance. By identifying the feedback loops in the cash flow system, a dynamic model is developed to forecast, plan and manage different policies, including prepayment, overbilling, loans, incentive payment, delay in payment and equipment lease. A case study (a construction activity as part of a pharmaceutical factory development project) is used to analyze the cash flow and financing policies. The findings demonstrate the effects of different policies such as incentive payments on project cash flow estimation, which proved to reduce the project duration, improve the profit and increase the financing during the project execution. The presented model would be a major attempt to estimate precisely the cash flow and the effect of employing different financial policies on project performance. Applying this model, project managers and decision-makers have the opportunity to model different financial policies concerning a variety of limiting variables applicable to each situation. Ultimately, with this, one can make more reasoned decisions and, in effect, optimize the utility of the project.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-21
      DOI: 10.1108/ECAM-05-2021-0431
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Productivity assessment of the real estate industry in China:
           a DEA-Malmquist index

    • Free pre-print version: Loading...

      Authors: Xiao-xiao Liu , Hui-hui Liu , Guo-liang Yang , Jiao-feng Pan
      Abstract: The high-quality development of the real estate industry is crucial to the transformation of China's economy. However, few studies apply the productivity to explore the development path of the real estate industry in China. To fill this gap, this study mainly investigates the total factor productivity (TFP) of the real estate industry of 30 sample provinces in mainland China from 2007 to 2016. The Malmquist index is applied to estimate the productivity (i.e. TFP) of the real estate industry, based on the data envelopment analysis (DEA). Then, the truncated tobit regression analysis explores the external influencing factors on the TFP of the real estate industry. Through empirical analysis, it is found that the high-quality development of the real estate industry depends on the technological innovation by the real estate enterprises and the targeted policies by the provincial government. Moreover, the development of the real estate industry has a positive correlation with the growth of China's economy but a negative correlation with the development of other industries. TFP mainly reveals the development status of the provincial real estate industry and identifies the driving force for exploring the high-quality development mode of the real estate sector. Furthermore, the fluctuation rule of TFP can be applied to predict the development trend of the real estate industry in the future. As an application, this study measures the TFP of the Chinese real estate industry in different provinces and periods. The results have meaningful policy implications for policymakers regulating the real estate industry.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-21
      DOI: 10.1108/ECAM-07-2020-0561
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Will contractors pursue unsustainable practices following environmental
           recovery' A highway case in China

    • Free pre-print version: Loading...

      Authors: Ting Shang , Xin Hu , Kunhui Ye , Vivian W. Y. Tam
      Abstract: This study aims to map out contractors' thoughts on construction-related environmental recovery as an excuse for deliberately carrying on unsustainable construction. A typical highway construction project in China was investigated. Textual materials were collected through semistructured interviews. Content analysis was conducted to derive qualitative data from the textual materials. The research findings reveal a trend of environmental recovery associated with construction activities. It is found that contractors utilize this trend to maintain unsustainable construction. Furthermore, the effects of environmental recovery equip local governments with a tolerance for environmental degradation, and the environmental tolerance allows contractors to continue unsustainable construction without being discovered. This paper presents an environmental recovery-based perspective on unsustainable construction and sheds some light on the promotion of sustainable construction.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-21
      DOI: 10.1108/ECAM-07-2021-0581
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Improvement of random forest by multiple imputation applied to tower crane
           accident prediction with missing data

    • Free pre-print version: Loading...

      Authors: Ling Jiang , Tingsheng Zhao , Chuxuan Feng , Wei Zhang
      Abstract: This research is aimed at predicting tower crane accident phases with incomplete data. The tower crane accidents are collected for prediction model training. Random forest (RF) is used to conduct prediction. When there are missing values in the new inputs, they should be filled in advance. Nevertheless, it is difficult to collect complete data on construction site. Thus, the authors use multiple imputation (MI) method to improve RF. Finally the prediction model is applied to a case study. The results show that multiple imputation RF (MIRF) can effectively predict tower crane accident when the data are incomplete. This research provides the importance rank of tower crane safety factors. The critical factors should be focused on site, because the missing data affect the prediction results seriously. Also the value of critical factors influences the safety of tower crane. This research promotes the application of machine learning methods for accident prediction in actual projects. According to the onsite data, the authors can predict the accident phase of tower crane. The results can be used for tower crane accident prevention. Previous studies have seldom predicted tower crane accidents, especially the phase of accident. This research uses tower crane data collected on site to predict the phase of the tower crane accident. The incomplete data collection is considered in this research according to the actual situation.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-21
      DOI: 10.1108/ECAM-07-2021-0606
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • A system dynamic model for assessing the level of BIM implementation in
           construction phase: a China case study

    • Free pre-print version: Loading...

      Authors: Bocun Tu , Jian Zuo , Rui-Dong Chang , Ronald J. Webber , Feng Xiong , Na Dong
      Abstract: Building information modeling (BIM) is recognized as one of the technologies to upgrade the informatization level of the architecture engineering and construction (AEC) industry. However, the level of BIM implementation in the construction phase lags behind other phases of the project. Assessing the level of BIM implementation in the construction phase from a system dynamics (SD) perspective can comprehensively understand the interrelationship of factors in the BIM implementation system, thereby developing effective strategies to enhance BIM implementation during the construction phase. This study aims to develop a model to investigate the level of BIM implementation in the construction phase. An SD model which covered technical subsystem, organizational subsystem, economic subsystem and environmental subsystem was developed based on questionnaire survey data and literature review. Data from China were used for model validation and simulation. The simulation results highlight that, in China, from 2021 to 2035, the ratio of BIM implementation in the construction phase will rise from 48.8% to 83.8%, BIM model quality will be improved from 27.6% to 77.2%. The values for variables “BIM platform”, “organizational structure of BIM” and “workflow of BIM” at 2035 will reach 65.6%, 72.9% and 72.8%, respectively. And the total benefits will reach 336.5 billion yuan in 2035. Furthermore, the findings reveal five factors to effectively promote the level of BIM implementation in the construction phase, including: policy support, number of BIM standards, owners demand for BIM, investment in BIM and strategic support for BIM. This study provides beneficial insights to effectively enhance the implementation level of BIM in the construction phase. Meanwhile, the model developed in this study can be used to dynamically and quantitatively assess the changes in the level of BIM implementation caused by a measure.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-21
      DOI: 10.1108/ECAM-10-2021-0895
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Carbon emissions management in construction operations:
           a systematic review

    • Free pre-print version: Loading...

      Authors: Verona Ramas Joseph , Nur Kamaliah Mustaffa
      Abstract: The demand to reduce carbon emissions has become an increasingly important social factor due to the unprecedented impacts of climate change. However, most existing publications have focused on minimizing emissions during the operational phase of buildings. At the same time, there is a lack of comprehensive research conducted on carbon emissions, specifically during the construction phase. The purpose of this paper is to identify, review and classify current practices related to carbon emissions management in construction operations to gain greater insight into how to reduce and mitigate emissions and achieve more sustainable solutions. This study reviewed the published literature on carbon emissions from construction. A total of 198 bibliographic records were extracted from the Scopus collection database and analyzed using Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA). PRISMA is used as a basis for reporting possible trends, research methods and strategies used in published literatures. A total of 99 papers related to carbon emissions in the construction operations were further reviewed and analyzed. This review paper draws on existing research and identifies current carbon management patterns in construction projects. Data indicated an upward trend in the number of publications in carbon emissions research during the last few years, particularly in 2015, 2017 and 2019. The most significant contributions to the domain were reported from China, Europe and the USA. This paper found that most studies conduct the Life Cycle Assessment (LCA) method to estimate carbon emissions. This paper found that the primary studies have focused on construction machinery and equipment emissions. The strategies such as establishing uniform standards for carbon emissions policies and regulations, equipment and logistic planning and low carbon design material will potentially impact carbon emissions reductions. This paper provides information that will be beneficial for the construction industry to design and manage construction operations. It will also be of interest to those looking to reduce or manage construction emissions. Although there is a diversity of current thinking related to the practical estimation and management of carbon emissions in construction projects, there is no consolidated set of keys of standardized carbon emissions management in practice. By assessing the existing paradigms of carbon assessment methods and tactics in the construction industry, this study contributed to the existing knowledge base by providing insights into current techniques in the construction sector for monitoring and mitigating emissions.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-17
      DOI: 10.1108/ECAM-04-2021-0318
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Creating space and time for innovation - a methodology for building
           adaptation design appraisal using physics-based simulation tools and
           interactive multi-objective optimization

    • Free pre-print version: Loading...

      Authors: Sheida Shahi , Philip Beesley , Carl Thomas Haas
      Abstract: It is crucial to consider the multitude of possible building adaptation design strategies for improving the existing conditions of building stock as an alternative to demolition. Integration of physics-based simulation tools and decision-making tools such as Multi-Attribute Utility (MAU) and Interactive Multi-objective Optimization (IMO) in the design process enable optimized design decision-making for high-performing buildings. A methodology is presented for improving building adaptation design decision making, specifically in the early-stage design feasibility analysis. Ten residential building adaptation strategies are selected and applied to one primary building system for eight performance metrics using physics-based simulation tools. These measures include energy use, thermal comfort, daylighting, natural ventilation, systems performance, life cycle, cost-benefit and constructability. The results are processed using MAU and IMO analysis and are validated through sensitivity analysis by testing one design strategy on three building systems. Quantifiable comparison of building adaptation strategies based on multiple metrics derived from physics-based simulations can assist in the evaluation of overall environmental performance and economic feasibility for building adaptation projects. The current methodology presented is limited to the analysis of one decision-maker at a time. It can be improved to include multiple decision-makers and capture varying perspectives to reflect common practices in the industry. The methodology presented supports affordable generation and analysis of a large number of design options for early-stage design optimization. Given the practical implications, more space and time is created for exploration and innovation, resulting in potential for improved benefits.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-14
      DOI: 10.1108/ECAM-02-2021-0133
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Determination of government guarantee and revenue cap in
           public–private partnership contracts

    • Free pre-print version: Loading...

      Authors: Hongyu Jin , Shijing Liu , Jun Li , Chunlu Liu
      Abstract: Considering there is a lack of research in determining the optimal levels of government guarantee and revenue cap, the objective of this research is to determine their optimal levels to achieve a reasonable financial risk allocation between governments and private investors while avoiding overly lucrative conditions for private investors. Expanded net present value (NPV) analysis and bargaining game theory are employed to construct the core of the determination process. The risk gap between governments and private investors is assessed via an expanded NPV analysis to see if the financial risk has been shared reasonably, based on which the range of the government guarantee is decided. A bargaining model is then created to help locate the optimal level of the government guarantee. Finally, a revenue cap, often combined with the government guarantee in public–private partnership (PPP) agreements, will be determined if overly lucrative conditions for private investors are observed or governments suffer a risk spillover. Referring to a real PPP project in Australia, Project BA is created to validate the applicability of the proposed determination process. The outcome shows that the proposed determination process in this paper is capable of determining the optimal levels of government guarantee and revenue cap. The government preferences towards risk allocation will influence the values of the optimal levels. Governments may also consider to alleviate the control over investors' net profits to mobilise private investors into PPP projects. There is a potential possibility that the revenue cap fails to control the financial risk for governments or the overly lucrative condition for private investors. In other words, even though the revenue cap is set at the minimal level, the financial risk for governments still beyond their tolerance range or the overly lucrative condition for private investors still occurs. Future research may focus on other financial protective schemes which help to better control the financial risks for governments and profits for private investors. Government guarantees are frequently used as an investment incentive to reduce the probabilities of suffering loss for private investors. Nevertheless, the financial risks for governments may increase after providing guarantees and, as a result, revenue cap is required by governments to avoid placing themselves in an unprotected situation. By recognising the importance of the two contractual parameters, many scholars dig into their option values. However, there are very rare research works focussing on the method of determining the specific levels of government guarantee and revenue cap. To overcome the limitations of existing models and enrich the methodology for government guarantee and revenue cap determination, this paper contributes to the body of knowledge by developing a government guarantee and revenue cap determination process which contributes to a reasonable allocation of financial risks between governments and private investors.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-14
      DOI: 10.1108/ECAM-06-2019-0311
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Safety performance prediction and modification strategies for
           construction projects via machine learning techniques

    • Free pre-print version: Loading...

      Authors: Hamidreza Abbasianjahromi , Mehdi Aghakarimi
      Abstract: Unsafe behavior accounts for a major part of high accident rates in construction projects. The awareness of unsafe circumstances can help modify unsafe behaviors. To improve awareness in project teams, the present study proposes a framework for predicting safety performance before the implementation of projects. The machine learning approach was adopted in this work. The proposed framework consists of two major phases: (1) data collection and (2) model development. The first phase involved several steps, including the identification of safety performance criteria, using a questionnaire to collect data, and converting the data into useful information. The second phase, on the other hand, included the use of the decision tree algorithm coupled with the k-Nearest Neighbors algorithm as the predictive tool along with the proposing modification strategies. A total of nine safety performance criteria were identified. The results showed that safety employees, training, rule adherence and management commitment were key criteria for safety performance prediction. It was also found that the decision tree algorithm is capable of predicting safety performance. The main novelty of the present study is developing an integrated model to propose strategies for the safety enhancement of projects in the case of incorrect predictions.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-13
      DOI: 10.1108/ECAM-04-2021-0303
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Trends of integrated project delivery implementations viewed from an
           emerging innovation framework

    • Free pre-print version: Loading...

      Authors: Ahmed Rashed , Ivan Mutis
      Abstract: Research into integrated project delivery (IPD) has attracted increased attention over the past 2 decades, and a significant number of IPD studies have been published more recently. The purpose of the study is to explore the state of IPD to reveal innovative areas of focus. The research presented puts forward a science mapping and bibliometrics methods to study systematic analysis of IPD scientific output published between 2006 and 2020. It uses a framework from emerging literature relating to innovation to incorporate a perspective of the process of innovation for the analysis of IPD. The adapted framework from the literature on innovation, called the Technology Innovation System (TIS), has functions that reveal novelty in the existing structures of IPD. The framework uses the analysis of scientific output from science mapping and bibliometric study techniques, using the ScienceDirect (SD) and Web of Science (WoS) databases as sources. The framework analyzes factors involved in the development and diffusion of the IPD approach and charts new knowledge development on IPD. From the analysis, future implementation of IPD will converge on cases of collaboration, as a systemic feature, among participating stakeholder teams. A significant and robust effect resulted from collaboration and integration as major mechanisms influence opportunities, problems and solutions within construction firms using IPD, marking a future trend. Reports further substantiate the importance and focus on collaboration and integration between IPD practitioners. With the same dynamic and gradual prominence, building information modeling (BIM) and new technology applications demonstrated the importance of the development and diffusion of IPD in the form of, for example, digital government initiatives. It is expected that the trend for IDS and resource mobilization functions will continue to grow – clear evidence of the benefits of the IPD approach in the construction sector. New evidence for gaining cognitive and normative legitimacy emerged. The expansion of new avenues for further legitimation is expected to enable growth. Beyond the innovative approach of viewing IPD from the emerging innovation framework, the research presented fully contributes to IPD literature, providing a comprehensive state-of-the-art status and a quantitative analysis of IPD scientific output, thereby illuminating promising work areas for future research into IPD. The main limitation is related to the dynamic process of indexing of IPD literature in the WoS and SD – although many new research publications are added in the discipline, only a part of them have been indexed in the WoS and SD core database. The study revealed key evolving trends within the field, including instructive findings and implications concerning possible deficiencies. Based on factors from network visualizations and quantitative evaluation from major influential articles, journals and authors, future critical IPD implementation focus will be on BIM and sustainability concepts – centerpiece concepts for the evolving line of IPD growth and development in the architecture, engineering and construction industry. This study fills the gap created in a shortage of studies mapping out the most critical contributions in journals, authors and research perspectives related to IPD. It presents a framework that can be used as an objective procedure to evaluate the topic. It is expected that the study will serve as a cornerstone for researchers in this field, as it provides a bibliometric analysis and presents trends using an analytical framework of innovation. The research presented is a keystone in the foundation of the literature review on this topic. The research draws on an existing framework for innovation – the TIS, developed from innovation studies using a robust theoretical framework to enable further analysis of IPD. This approach is one of a kind, using the results of scientometric analysis to study the scientific landscape and knowledge output of IPD in the AEC community. Science-mapping bibliometric analysis was conducted to shed light on IPD trends and explain factors that back or support the development and diffusion of IPD, including shaping and enabling evolution and growth. The framework helps to shed light on the interaction of socio-technical structures (i.e. stakeholders, technologies and rules) embedded in the industry, which helped create, direct and advance IPD in the project delivery system.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-09
      DOI: 10.1108/ECAM-06-2021-0516
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • The role of the industry's cultural-cognitive elements on actors'
           intention to adopt BIM: an empirical study in Peru

    • Free pre-print version: Loading...

      Authors: Danny Murguia , Peter Demian , Robby Soetanto
      Abstract: The current understanding of building information modelling (BIM) adoption often neglects the industry context in which BIM is deployed. This is particularly problematic when policymakers are planning to enact top-down policies to promote BIM adoption in public-funded construction. Therefore, the aim of this study is to establish the industry-level factors that constraint or enable actors' intention to adopt BIM. Using institutional theory with an emphasis on the cultural-cognitive elements, the authors aim to complement the understanding of BIM adoption by incorporating institutional elements into the unified theory of acceptance and use of technology (UTAUT). The cultural-cognitive elements were extracted from focus groups and interviews with architecture, construction and engineering (AEC) professionals in Peru. A modified UTAUT was empirically tested using confirmatory factor analysis (CFA) and structural equation modelling (SEM) with a dataset from 171 questionnaire responses. The industry characteristics, standardisation, affordability and technology/methodology definition of BIM were found to be the cultural-cognitive elements having direct effects on individual reactions to BIM. These findings suggest that BIM adoption policies should focus on designing incentives schemes, training/educating professionals on BIM collaborative processes and developing/adapting applicable standards. However, a BIM adoption mandate would require policymakers to create collaborative procurement environments in tandem with information management and process standards. Findings can be used by policymakers to significantly promote BIM adoption in contexts without a government mandate for public sector construction. The study of institutional elements on BIM adoption is still limited. This study provides empirical evidence on how the cultural-cognitive elements of the industry context are associated with actors' intention to adopt BIM. Therefore, this study bridges industry and individual levels of analysis. Furthermore, this study enables policymakers to initiate actions that significantly encourage BIM adoption.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-06
      DOI: 10.1108/ECAM-08-2021-0743
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Participatory design in refugee camps: Ethnographic case studies from
           Greece

    • Free pre-print version: Loading...

      Authors: Suha Jaradat , Narda Beunders
      Abstract: Architectural management and construction practices have not been widely explored in refugee camps which have been growing exponentially around the world. Previous research largely focused on the negativity surrounding living in refugee camps and mostly ignored the input of refugees. This study explores the possibilities of involving refugees in architectural design and construction decisions in the camps. This research adopts a qualitative interpretive research approach and employs exploratory ethnographic methods. Participatory design (PD) principles are applied to design and construct community place projects in two refugee camps in Greece. The findings demonstrate that, despite the technical and institutional challenges of employing PD approaches in refugee camps, there are observed positive impacts on the wellbeing of refugees and impacts on the hosting communities. This paper contests the negativity surrounding refugee camps and has implications on research, practice and society as well as a positive impact on NGO organisations, policy-makers and other stakeholders involved in the governance of refugee camps. This paper addresses a critical issue concerning how to include refugees in the design, implementation and maintenance of refugee camps to improve their well-being and fight the feeling of “otherness” for both refugees and host communities. This study extends research on refugee camps by collaborating with refugees to improve their lives within the camps. This research contributes to architectural management and construction studies by providing practical recommendations related to PD methods in new contexts.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-03
      DOI: 10.1108/ECAM-04-2021-0328
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Migrant construction workers' demography and job satisfaction: a New
           Zealand study

    • Free pre-print version: Loading...

      Authors: James Olabode Bamidele Rotimi , Chamil Dilhan Erik Ramanayaka , Oluwole Alfred Olatunji , Funmilayo Ebun Rotimi
      Abstract: The demand for construction-related occupations has increased consistently over many years in New Zealand (NZ). This has necessitated recourse to migrant workers to address capacity and capability requirements. Migrant construction workers hail from various backgrounds with a complex set of their needs being met through employment in NZ. Research on understanding the satisfaction levels of this category of construction workers is scarce. With recent insinuations about migrant exploitations, research investigations into this knowledge area are significant. In this study, the authors sought to establish the moderating effect of migrants' demography on the determinants of job satisfaction in NZ's construction sector. Data were obtained from migrant construction workers of Chinese extraction through a structured questionnaire survey. From 200 questionnaires administered, 108 samples were completed by migrant construction workers involved in major projects in Auckland city, NZ. Data obtained were analysed using descriptive and inferential statistics to establish the moderating effects of their demography on job satisfaction. Results from this study support the internal validity and reliability of these personal characteristics as moderators of job satisfaction for migrant construction workers. These results suggest the relevance of personal characteristics of Chinese migrants in any improvement initiatives being developed for this group of construction workers. The findings from this study contribute to the discourse on the relevance of construction migrants as a strategic alternative to addressing skill shortages within the NZ construction sector. They also provide evidence that contributes to an improved understanding of the migrant workforce to meet their aspirations and enhance their general well-being. Although the study is ethnic-specific, the conclusions show the relevance of personal characteristics in the experiences of construction migrant workers. The study is representative of the catchment of temporary migrant workers in the construction industry in NZ. The study provides insights for organisations employing migrants about putting in place appropriate measures to enhance their satisfaction levels. Finally, this study's findings may contribute to policy initiatives on the optimal categories of migrants engaged on construction activities to derive the maximum benefits for NZ.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-03
      DOI: 10.1108/ECAM-05-2021-0457
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Neighborhood micro-renewal: a perspective of gene in China

    • Free pre-print version: Loading...

      Authors: Guochao Zhao , Xiaofen Yu , Juanfeng Zhang , Wenxia Li , Peiyi Wu
      Abstract: Improvement of the environment quality and human development has become the main focus of modern urban development. Micro-renewal is a relatively people-oriented model of urban transformation compared with traditional renewal modes. To improve the theoretical system of neighborhood micro-renewal from a microcosmic perspective, a comprehensive analysis of neighborhood residents' cognition is needed. The purpose of the study is to explore the possibilities and methods of applying gene theory into the study of neighborhood micro-renewal. According to the meme theory, the research explores the genetic analysis of neighborhood micro-renewal. The cross-over studies with “gene theory” from natural science to social science are analyzed and the neighborhood micro-renewal system was constructed from the perspective of micro-participants and micro-objects. Moreover, the concept of neighborhood “micro-renewal gene” was put forward. Finally, the authors show three application scenarios of public participation with a specific neighborhood micro-renewal project. The cross research on urban studies with gene theory could be divided into three scales and four research fields. The characteristics of carrying out neighborhood micro-renewal in China could be summarized as micro-participants and micro-objects. Residents' cognition could be considered as “micro-renewal gene” in refer to meme theory. The application scenarios of introducing “micro-renewal gene” into the study of neighborhood renewal are of great potentialities. Neighborhood micro-renewal system was constructed from the perspective of micro-participants and micro-objects. Moreover, neighborhood “micro-renewal gene” was proposed and applied into the study of this system in refer to meme theory.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-02
      DOI: 10.1108/ECAM-01-2021-0010
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Exploring construction workers' attitudinal ambivalence: a system dynamics
           approach

    • Free pre-print version: Loading...

      Authors: Sheng Xu , Mengge Zhang , Bo Xia , Jiangbo Liu
      Abstract: This study aimed to identify driving factors of safety attitudinal ambivalence (AA) and explore their influence. Construction workers' intention to act safely can be instable under conflicting information from safety management, co-workers and habitual unsafe behaviour. Existing research explained the mechanism of unsafe behaviours as individual decisions but failed to include AA, as the co-existence of both positive and negative attitude. This study applied system dynamics to explore factors of construction workers' AA and simulate the process of mitigating the ambivalence for less safety behaviour. Specifically, the group model building approach with eight experts was used to map the causal loop diagram and field questionnaire of 209 construction workers were used to collect empirical data for initiating parameters. The group model building identified five direct factors of AA, namely the organisational safety support, important others' safety attitude, emotional arousal, safety production experience and work pressure, with seven feedback paths. The questionnaire survey obtained the initial values of the factors in the SD model, with the average ambivalence at 0.389. The ambivalence between cognitive and affective safety attitude was the highest. Model simulation results indicated that safety experience and work pressure had the most significant effects, and safety experience and positive attitude of co-workers could compensate the pressure from tight schedule and budget. This study provided a new perspective of the dynamic safety attitude under the co-existence of positive and negative attitude, identified its driving factors and their influencing paths. The group model building approach and field questionnaire surveys were used to provide convincible suggestions for empirical safety management with least and most effective approaches and possible interventions to prevent unsafe behaviour with tight schedule and budget.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-02
      DOI: 10.1108/ECAM-01-2021-0097
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Forecasting the schedule performance resulting from the adoption of
           social distancing in construction projects

    • Free pre-print version: Loading...

      Authors: Hilary Omatule Onubi , Nor'Aini Yusof , Ahmad Sanusi Hassan , Ali Ahmed Salem Bahdad
      Abstract: The coronavirus disease 2019 (COVID-19) pandemic has had major impacts on the performance of construction projects that have adopted social distancing measures. This study examines the effect of social distancing measures on project schedule performance through job reorganization on construction project sites. Responses were obtained through a survey of 154 construction projects and analysed using the partial least square structural equation modeling (PLS-SEM) technique. The findings established that social distancing has a negative effect on schedule performance, social distancing has a positive effect on job re-organization and job re-organization has a positive effect on schedule performance. Additionally, the results indicate that job re-organization partially mediates the relationship between social distancing and schedule performance, while social distancing moderates the relationship between job re-organization and schedule performance with low social distancing having the stronger positive effect. This study contributes theoretically to a greater understanding of the impact of adopting COVID-19 safety measures such as social distancing on the schedule performance of construction projects. The study also shows how social distancing could lead to schedule performance through job reorganization.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-02
      DOI: 10.1108/ECAM-07-2021-0632
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Cascading vulnerability analysis of unsafe behaviors of construction
           workers from the perspective of network modeling

    • Free pre-print version: Loading...

      Authors: Pinsheng Duan , Jianliang Zhou
      Abstract: The construction industry is an industry with a high incidence of safety accidents, and the interactions of unsafe behaviors of construction workers are the main cause of accidents. The neglect of the interactions may lead to serious underestimation of safety risks. This research aims to analyze the cascading vulnerability of unsafe behaviors of construction workers from the perspective of network modeling. An unsafe behavior network of construction workers and a cascading vulnerability analysis model were established based on 296 actual accident cases. The cascading vulnerability of each unsafe behavior was analyzed based on the degree attack strategy. Complex network with 85 unsafe behavior nodes is established based on the collected accidents in total. The results showed that storing in improper location, does not wear a safety helmet, working with illness and working after drinking are unsafe behaviors with high cascading vulnerability. Coupling analysis revealed that differentiated management strategies of unsafe behaviors should be applied. Besides, more focus should be put on high cascading vulnerability behaviors. This research proposed a method to construct the cascading failure model of unsafe behavior for individual construction workers. The key parameters of the cascading failure model of unsafe behaviors of construction workers were determined, which could provide a reference for the research of cascading failure of unsafe behaviors. Additionally, a dynamic vulnerability research framework based on complex network theory was proposed to analyze the cascading vulnerability of unsafe behaviors. The research synthesized the results of dynamic and static analysis and found the key control nodes to systematically control unsafe construction behaviors.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-12-01
      DOI: 10.1108/ECAM-06-2021-0475
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Exploration of burnout in early-career construction management
           professionals in the USA

    • Free pre-print version: Loading...

      Authors: Bryan Franz , Tong Wang , Raja Raymond Issa
      Abstract: Construction managers face many work-related stressors induced by unrealistic schedule expectations, tight budgets, and long hours. Over time, these stressors can result in both mental and physical exhaustion, a condition referred to as burnout. Early-career managers are a key worker demographic, as they represent the near-term future of the construction industry, yet they have a high risk for burnout. The purpose of this study is to explore the prevalence of burnout in new construction managers, and to identify which individual or work-related factors are associated with feelings of burnout. Using the Maslach Burnout Inventory General Survey (MBI-GS), data from 146 early-career professionals (less than 10 years of experience) with construction management degrees in the USA were collected and analyzed using correlational and best subset regression techniques. The results show that the early-career demographic in the USA experiences both the Emotional Exhaustion and Cynicism dimensions of burnout at comparable levels to prior studies with more mid-to-late career respondents. However, the Professional Efficacy dimension was significantly higher in early-career professionals than any other sample. No individual factors, such as gender, marital status, or number of children, were predictive of any dimension of burnout. Instead, only work-related factors including co-worker friendliness, opportunities for personal development and promotion, and the ability to control the work pacing were strongly associated with one or more dimensions of burnout. This study is the first to explore burnout in the key early-career demographic for construction managers in the United States construction industry. This work provides evidence that organizational policies and culture have a greater efficacy in alleviating burnout in this demographic, when compared to the work–life balance of the individual.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-11-26
      DOI: 10.1108/ECAM-08-2021-0761
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Public participation in infrastructure projects: an integrative review and
           prospects for the future research

    • Free pre-print version: Loading...

      Authors: Han Xiao , Shengyue Hao
      Abstract: In the past few decades, traditional project management theories mainly focused on quality, cost and schedule. However, with larger scale and wider influence of infrastructure projects, especially in megaprojects, social problems have gradually become pressing issues in the field of project governance. As the public is the main body of society, public participation has attracted the attention from both the academic field and industry field. Despite people are gradually realizing the significance of public participation, a deeper and more systematic understanding is still needed to be developed in this field. Therefore, this paper aims to conduct a systematic literature review on public participation in infrastructure projects. Based on existing literatures, this paper draws a knowledge map and develops a research framework in this field. Also, this paper tries to provide some theoretical and practical directions for the future. In total, 142 papers from Web of Science Core collection were selected to be used in this systematic review. Quantitative analysis of this paper is concentrated on the knowledge map with bibliometric tools. Qualitative analysis is concentrated on identifying the research framework. This paper reviewed existing literatures and the results are as below. Firstly, the results show a knowledge map containing knowledge domains, knowledge frontiers and knowledge evolution of research fields in public participation. Secondly, the results indicate a research framework in this field, including situational dimension, implementation dimension, individual dimension and influence dimension. Moreover, each dimension has several research topics, respectively. Finally, according to the results, the paper proposes practical suggestions for stakeholders and research directions for further study. It is the first paper to draw a holistic knowledge map and build up a multilevel framework for public participation in the field of infrastructure projects. This paper bridges the gap in both quantitative and qualitative identification of existing literatures in this field. Besides, this paper proposes some practical suggestions and research directions for further study and development of public participation.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-11-25
      DOI: 10.1108/ECAM-06-2021-0495
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Analysis of BIM functionalities diffusion in the construction industry:
           the case of the MENA region

    • Free pre-print version: Loading...

      Authors: Claudette El Hajj , Germán Martínez Montes , Dima Jawad
      Abstract: This paper researches the diffusion patterns of various BIM functionalities across the Middle East and North Africa (MENA) construction industry. The study grounds on the innovation diffusion theory proposition that both the internal and external factors drive the widespread adoption of innovative trends. The study empirically analyzes the diffusion patterns of BIM by employing and comparing three mathematical influence models: internal, external and mixed models. The results of the questionnaires point out that the mixed model as having the highest explanatory power and shows that the internal influence factors outperform the external factors in affecting the diffusion of BIM functionalities in the MENA Architectural, Engineering, and Construction (AEC) industry. This paper can be of significant value for academic researchers as well as BIM business developers who are interested in emerging markets via providing an enhanced understanding of the adoption process of different BIM functionalities as well as a theoretical basis for explaining the diffusion patterns of information technology innovations in the AEC industry. This study is among the first applications of the influence models to examine the adoption of BIM functionalities in the AEC industry and the very first across the MENA region.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-11-24
      DOI: 10.1108/ECAM-03-2021-0269
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Development strategy for prefabricated construction projects: a tripartite
           evolutionary game based on prospect theory

    • Free pre-print version: Loading...

      Authors: Yudan Dou , Xiliang Sun , Ankang Ji , Yuna Wang , Xiaolong Xue
      Abstract: Owing to multiple superiorities to traditional counterparts, prefabricated construction (PC) has gained increasing attention worldwide. The development of PC projects reflects the effects of both policy supervision and PC practice, which aids the government in reasonably identifying the key issues of PC's promotion and rationally improving the policy deployment. However, existing studies fail to address this aspect, especially lacking quantitative exploration. This study explores the micro mechanism of PC's promotion, from the perspective of developing PC projects. A tripartite evolutionary game model based on prospect theory of the government, developers and contractors is constructed. After rigorous theoretical deduction, this study adopts Changchun in China as a case city and collects the data using the Delphi technique, policy documents and literature analysis. Results indicate that contractors are generally willing to implement PC projects and the government chooses to actively supervise PC's promotion. The negative investment behavior of developers is the main obstacle to promote PC in Changchun currently. The conclusions are applicable to other comparable regions. This study is of value to promote PC with high efficiency and effect. The tripartite evolutionary game model based on prospect theory proposed in this study is conducive to reveal the essence of PC's promotion. This is an important breakthrough in extant studies, with a broad applicability in the PC domain beyond China.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-11-17
      DOI: 10.1108/ECAM-05-2021-0455
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Strategies for sustainable irrigation system management: a socio-technical
           system approach

    • Free pre-print version: Loading...

      Authors: DC Sirimewan , Aparna Samaraweera , NHC Manjula , Raufdeen Rameezdeen , MNN Rodrigo , EMAC Ekanayake
      Abstract: Irrigation System Management (ISM) poses many issues in terms of social and technical aspects. These can be further elaborated as the issues toward the efficiency of infrastructure, equity of water sharing, environmental integrity and economic acceptability. Water losses and the structural changes of the system caused many issues putting the irrigation system into distress. Hence, this urges the need for sustainable ISM to improve social and technical attributes in ISM. This paper aims to apply the Socio-Technical Systems (STSs) theory for sustainable ISM. The qualitative expert opinion survey method was selected as the research strategy to approach the research aim. Sixteen industry professionals in the ISM sector were selected through the purposive sampling method to conduct semi-structured interviews to collect data in the Sri Lankan context. Code-based content analysis through a directed approach was used to analyse the data. Four main categories of strategies were emerged from the research findings as “engineering strategies”, “operational strategies”, “management strategies” and “regulatory strategies” through STS approach for sustainable ISM. The STS framework was developed by combining engineering and operational strategies into the technical subsystem and the management and regulatory strategies into the social subsystem to approach the aim of achieving contemporary system management in irrigation in a sustainable manner. The research revealed the links between the strategies emerged from various disciplines to minimise the issues in ISM from the perspectives of technical and social subsystems. The study contributes to knowledge by providing a framework for sustainable ISM by applying the socio-technical systems theory by integrating the concepts of sustainability.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-11-16
      DOI: 10.1108/ECAM-06-2021-0521
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Playing the cards right: exploring the way leadership influences
           organizational citizenship behavior for the environment in megaprojects

    • Free pre-print version: Loading...

      Authors: Ge Wang , Giorgio Locatelli , Huijin Zhang , Jingyuan Wan , Yufan Chen
      Abstract: Organizational citizenship behaviors for the environment (OCBEs) represent a crucial element of environmental sustainability for a wide range of organizations. However, the leadership mechanisms underlying OCBEs are as yet unexplored, particularly regarding the delivering megaprojects. The paper aims to investigate how transformational leadership (TFL) and transactional leadership (TSL) styles shape the environmental commitment (EC) of subordinates, motivating OCBEs in megaprojects. Partial least squares modeling and hierarchical regression were performed on data obtained from 140 experts who have been involved in megaprojects. Both TFL and TSL styles are effective in motivating OCBEs, although the EC of subordinates partially mediates these relationships. The power distance (PD) orientation significantly moderates the relationship between TFL and OCBEs, with the relationship being more positive when the PD of subordinates is lower. Unexpectedly, a collectivist orientation (CO) was found to elevate the effect of TSL but weaken the effect of TFL. The mixed and contradictory findings regarding TFL and TSL styles are reconciled in the current study by integrating the contextual factors of PD and CO. The findings of the study shed new light on “playing the cards right” when using the leadership practices, i.e. how leadership can be better leveraged to cultivate subordinates' OCBEs. They also provide targeted guidance for shaping contextual factors to increase the environmental sustainability of megaprojects.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-11-12
      DOI: 10.1108/ECAM-01-2021-0093
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • The role of regulatory focus and team mindfulness in megaproject conflicts

    • Free pre-print version: Loading...

      Authors: Dedong Wang , Yuxue Wang
      Abstract: Project conflicts are inevitable. Megaproject conflicts need to be managed across different levels. The purpose of this study is to investigate the role of individual-level regulatory focus and organization-level team mindfulness in managing megaproject conflicts. By combining the individual motivation basis and organizational background of conflict resolution, this study constructed a multi-level structural equation model. The hypothesis is tested based on data collected from 182 respondents. The findings of this study show that project manager's promotion focus has a direct positive effect on task conflict and a negative effect on relationship conflict. Prevention focus has a positive effect on relationship conflict and a negative effect on task conflict and process conflict. Team mindfulness has a negative effect on relationship conflict and process conflict and a positive effect on task conflict. Task conflict was negatively affected by the interaction between team mindfulness and promotion focus. The interaction between team mindfulness and prevention focus had a positive effect on relationship conflict. This study verifies the positive role of project manager's promotion focus and prevention focus in conflict management and clarifies the strengthening role of team mindfulness in constructive conflict and the prevention role in destructive conflict. This study also confirms that team mindfulness can act as a reinforcement and complementary factor of regulatory focus in megaproject conflict, contributing to the current understanding of the project manager's role in megaproject mindfulness contexts.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-11-09
      DOI: 10.1108/ECAM-05-2021-0400
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Project portfolio risk analysis with the consideration
           of project interdependencies

    • Free pre-print version: Loading...

      Authors: Libiao Bai , Huijing Shi , Shuyun Kang , Bingbing Zhang
      Abstract: Comprehensive project portfolio risk (PPR) analysis is essential for the success and sustainable development of project portfolios (PPs). However, project interdependency creates complexity for PPR analysis. In this study, considering the interdependency effect among projects, the authors develop a quantitative evaluation model to analyze PPR based on a fuzzy Bayesian network. In this paper, the primary purpose is to comprehensively evaluate project portfolio risk considering the interdependency effect using a systematical model. Accordingly, a fuzzy Bayesian network (FBN) is developed based on the existing studies. Specifically, first, the risks in project portfolios are identified from the project interdependencies perspective. Second, a fuzzy Bayesian network is adopted to model and quantify the interaction relationships among risks. Finally, the model is implemented to analyze the occurrence situation and characteristics of risks. The interdependency effect can lead to high-stake risks, including weak financial liquidity, a lack of cross-project members and project priority imbalance. Furthermore, project schedule risks and inconsistency between product supply and market demand are relatively sensitive and should also be prioritized. Also, the validity of this risk evaluation model has been proved. The findings identify the most sensitive risks for guaranteeing portfolio implementation and reveal interdependency effect can trigger some specific risks more often. This study proposes for the first time to measure and analyze project portfolio risk by a systematical model. It can help systematically assess and manage the complicated and interdependent risks associated with project portfolios.
      Citation: Engineering, Construction and Architectural Management
      PubDate: 2021-11-05
      DOI: 10.1108/ECAM-06-2021-0555
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Supply chain risk factors in green construction of residential mega
           projects – interactions and categorization

    • Free pre-print version: Loading...

      Authors: Ardalan Marandi Alamdari , Younis Jabarzadeh , Daniel Samson , Naser Sanoubar
      Abstract: Green construction has begun implementing sustainable and environmentally friendly practices, but there has not yet been an assessment for green construction supply chain risks in the literature. Identification and assessment of potential risks will result in more appropriate risk mitigation strategies to overcome disruptions affecting higher performance. Thus, this study aims to identify green construction supply chain risks of residential mega-projects. Interpretive structural modeling (ISM) provided a hierarchical model composed of seven layers that elucidated the driving influences between the elements. Matrice d’impacts croises-multiplication appliqúe an classement (MICMAC) analysis classified the elements into the driver, linkage and dependent variables based on their dependence and driving powers, providing a clearer understanding of risk factors and their influential characteristics. Using experts' knowledge and experience is compatible with the subjective nature of ‘supply chain risks’ and is more suitable while collecting pertinent quantitative data which is far more challenging. Tenable output, using an international expert group, addressed key risk factors. Technical expertise and skilled labor, key customers, and corporate culture are found as elements with most driving power, and the final product and logistics coordination and supply chain configuration found as the most dependent risk factors. Managerial implications addressed the most fundamental ris