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
Smart and Sustainable Built Environment
Journal Prestige (SJR): 0.373
Citation Impact (citeScore): 1
Number of Followers: 8  
 
Hybrid Journal Hybrid journal   * Containing 4 Open Access Open Access article(s) in this issue *
ISSN (Print) 2046-6099 - ISSN (Online) 2046-6102
Published by Emerald Homepage  [360 journals]
  • Integrating disaster resilience into green rating systems –
           a modification of the Sri Lankan green building rating tool

    • Free pre-print version: Loading...

      Authors: Sonali Abeysinghe , Chandula Jithmi De Zoysa , Chandana Siriwardana , Chaminda Bandara , Ranjith Dissanayake
      Abstract: The purpose of the study is to mainstream the disaster risk reduction (DRR) and disaster resilience measures into the GreenSL® building rating system in Sri Lanka to demonstrate a more holistic approach in achieving sustainability with resilience. First, a comprehensive literature review was carried out on green building practices and rating tools, natural hazards and DRR and global and local frameworks. Next, criteria were developed incorporating the disaster resilience aspects through eight expert committee meetings and included the rating tool in three levels. Finally, 11 green-certified buildings from the Green Building Council of Sri Lanka were reevaluated using the new disaster resilient GREENSL® rating system for built environment as a validation for the new tool and to analyze the new certification levels. All the green-certified buildings in hazard-prone areas dropped their certification by one level while the buildings in nonhazard-prone areas remained in the certification after being evaluated by the new DRR-incorporated rating system, which recommends the use of new tool for the buildings in hazard-prone areas. But due to the rapid changes in climate and the unpredictable trends of natural hazards, the use of new DRR incorporated GREENSL® rating system for built environment for the certification of buildings is highly endorsed. This is the first research study based on the GREENSL rating system. And it is the first effort to incorporate DRR aspects to any rating tool in Sri Lanka. The projects that were evaluated for the validation of the new tool are the actual projects which obtained green building certification. Also, it is apparent that this study has gone some way towards enhancing the understanding of blending the sustainability and resilience in rating systems for built environment.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-05-09
      DOI: 10.1108/SASBE-10-2021-0182
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Virtual reality utility and usefulness in the furniture, fixture and
           equipment sector: a validation of interactive and distributed immersion

    • Free pre-print version: Loading...

      Authors: Abhinesh Prabhakaran , Abdul-Majeed Mahamadu , Lamine Mahdjoubi , Colin Booth , Clinton Aigbavboa
      Abstract: The Furniture, Fixture and Equipment (FFE) sector is well placed to leverage virtual reality (VR) technology for competitive and operational advantages; however, the diffusion of VR applications in this sector has followed a steep curve. This study reports on the implementation of two novel VR applications in the FFE sector and also investigates the challenges and benefits associated with their use and adaptability. A sequential exploratory mixed research methodology consisting of three phases was adopted for this study. This included identification of factors that affect/facilitate the implementation of VR (Challenges and Benefits) using experiments during in-house prototyping of VR applications, a rigorous literature review and questionnaire survey to solicit FFE Stakeholder's (n = 117) opinion on the utility and usefulness of the proposed applications and to the understand factors that facilitate and inhibit their implementation in FFE's context, particularly as a design communication and coordination tool. The findings of this study revealed that distributed and single-user VR has become essential to digitalising the FFE sector's design communication with improved design communication being regarded as the most important benefit of its use. Conversely, the most critical challenge that inhibits the implementation of these two VR applications in the FFE sector is the perceived cost. This study provides valuable insight to FFE's stakeholders to devise action plans to mitigate myriad complex and interrelated factors that affect the adoption of virtual reality technology in the FFE sector that are otherwise very hard to understand, and the consequential implementation of any mitigation plans cannot be devised.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-26
      DOI: 10.1108/SASBE-02-2022-0038
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Assessing annual thermal comfort extent in central courtyards: Baghdad as
           a case study

    • Free pre-print version: Loading...

      Authors: Omar Al-Hafith , Satish BK , Pieter de Wilde
      Abstract: Traditional central courtyards have been advocated for being thermally efficient for hot-climate regions. However, exploring previous literature shows that it is not clear to what extent courtyards are truly thermally comfortable. This study determines the level of thermal comfort in residential courtyards in hot-climate regions, taking Baghdad as a case study. This study develops a novel Courtyard Thermal Usability Index (CTUI) to quantify the ability of courtyards to provide thermal comfort to occupants. CTUI is the fraction of useable thermally comfortable hours in courtyards of the total occupation hours during a specific period. To operationalise CTUI, the research employs the Envi-met 4.2 simulation tool to determine the annual thermal conditions of 360 courtyards. An adaptive thermal comfort model developed by Al-Hafith in 2020 for Iraq is used to judge simulated thermal conditions and determine CTUI. CTUI enables determining the level of thermal comfort courtyards offer to occupants by showing the ratio of the thermally comfortable period versus the occupation period. Results show that, in Iraq, annually, courtyards offer up to 38% comfortable hours out of the total potential occupation hours. The rest of the time the courtyard will not be comfortable, mostly due to overheating. When designing courtyards, the most effective geometric property impacting courtyards' thermal conditions is width/height. The most important microclimatic factor impacting occupants' thermal sensation is mean radiant temperature (MRT). This study can be used to inform designing thermally efficient courtyards for hot-climate regions. This study presents the first assessment of the thermal efficiency of courtyards in hot-climate regions depending on an assessment of their ability to provide thermal comfort to occupants. The study presents a novel index that can be used to quantify the ability of courtyards to provide a thermally comfortable environment to occupants.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-21
      DOI: 10.1108/SASBE-09-2021-0154
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Drivers for energy analysis towards a BIM-enabled information flow

    • Free pre-print version: Loading...

      Authors: Ahmad Mohammad Ahmad , Sergio Rodriguez Trejo , Mian Atif Hafeez , Nashwan Dawood , Mohamad Kassem , Khalid Kamal Naji
      Abstract: Energy analysis (EA) within a building information modelling (BIM) enables consistent data integration in central repositories and eases information exchange, reducing rework. However, data loss during information exchange from different BIM uses or disciplines is frequent. Therefore, a holistic approach for different BIM uses enables a coherent life cycle information flow. The life cycle information flow drives the reduction of data loss and model rework and enhances the seamless reuse of information. The latter requires a specification of the EA key performance indicators (KPIs) and integrating those in the process. The paper presents a set of KPIs extracted from the developed EA process maps and interviews with expert stakeholders. These KPIs stem from the literature review and link to the benefits of EA through industry expert review. The study includes (1) development and validation of EA process maps adjusted to requirements from different stakeholders. (2) KPIs aligned with the EA process map, (3) identification of the drivers that can facilitate life cycle information exchange and (4) opportunities and obstacles for EA within BIM-enabled projects. This paper depicts a viable alternative for EA process maps and KPIs in a BIM-enabled AEC design industry. The findings of this paper showcase the need for an EA within BIM with these KPIs integrated for a more effective process conforming to the current Open BIM Alliance guidance and contributing towards sustainable life cycle information flow. The limitation of the research is the challenge of generalising the developed EA process maps; however, it can be adjusted to fit defined organisational use. The findings deduced from the developed EA process map only show KPIs to have the ability to facilitate adequate information flow during EA. The AEC industry will benefit from the findings of this primary research as the industry will be able to contrast its process maps and KPIs to those developed in the paper. This paper benefits the societal values in EA for the built environment in the design stages. The subsequent life cycle information flow will help achieve a consistent information set and decarbonised built environment. The paper offers a practical overview of process maps and KPIs to embed EA into BIM, reducing the information loss and rework needed in the practice of this integration. The applicability of the solution is contrasted by consultation with experts and literature.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-20
      DOI: 10.1108/SASBE-07-2021-0129
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A critical review of public–private partnerships in the COVID-19
           pandemic: key themes and future research agenda

    • Free pre-print version: Loading...

      Authors: Isaac Akomea-Frimpong , Xiaohua Jin , Robert Osei-Kyei , Roksana Jahan Tumpa
      Abstract: Undoubtedly, coronavirus (COVID-19) pandemic has released unprecedented disruptions and health crisis on people and activities everywhere. The impacts extend to public–private partnership (PPP) arrangements in the construction industry. Concomitantly, PPP pacts are contributing to combat the pandemic. However, literature on the PPP concept in the COVID-19 era remain under-researched. This study aims to review the current literature on PPPs in the COVID-19 pandemic and present the key themes, research gaps and future research directions. In this study, 29 highly relevant literature were sourced from Web of Science, Scopus and PubMed search engines within the systematic literature review (SLR) methodology. With the aid of qualitative content analysis, the 29 articles were critically analysed leading to the extraction of hot research themes on PPPs in the coronavirus pandemic. The results of the SLR produced eight themes such as major changes in PPP contracts, development of the COVID-19 vaccines, economic recession, facemasks and testing kits, governance and sustainability of PPPs. In addition, the study reveals seven research gaps that need further investigations among the scientific research community on mental health and post-pandemic recovery plans. The articles selected for this review were limited to only peer-reviewed journal papers written in English excluding conference papers. This restriction may have taken out some relevant literature but they had insignificant impact on the overall outcome of this research. To improve the understanding of practitioners in the construction industry on key issues on PPPs in the COVID-19 pandemic, the study provides them a checklist of relevant themes. As a novel literature review relating PPPs to the coronavirus, it sets the foundation for further research and contributes to practical measures to control the virus.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-19
      DOI: 10.1108/SASBE-01-2022-0009
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Measurement and sonification of construction site noise and particle
           pollution data

         This is an Open Access Article Open Access Article

    • Free pre-print version: Loading...

      Authors: Niklas Rönnberg , Rasmus Ringdahl , Anna Fredriksson
      Abstract: The noise and dust particles caused by the construction transport are by most stakeholders experienced as disturbing. The purpose of this study is to explore how sonification can support visualization in construction planning to decrease construction transport disturbances. This paper presents an interdisciplinary research project, combining research on construction logistics, internet of things and sonification. First, a data recording device, including sound, particle, temperature and humidity sensors, was implemented and deployed in a development project. Second, the collected data were used in a sonification design, which was, third, evaluated with potential users. The results showed that the low-cost sensors used could capture “good enough” data, and that the use of sonification for representing these data is interesting and a possible useful tool in urban and construction transport planning. There is a need to further evolve the sonification design and better communicate the aim of the sounds used to potential users. Further testing is also needed. This study introduces new ideas of how to support visualization with sonification planning the construction work and its impact on the vicinity of the site. Currently, urban planning and construction planning focus on visualizing the final result, with little focus on how to handle disturbances during the construction process. Showing the potentials of using low-cost sensor data in sonification, and using sonification together with visualization, is the result of a novel interdisciplinary research area combination.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-19
      DOI: 10.1108/SASBE-11-2021-0189
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Integrating augmented reality technologies into architectural education:
           application to the course of landscape design at Port Said University

    • Free pre-print version: Loading...

      Authors: Heba Adel Ahmed Hussein
      Abstract: This study examines the benefits and potential applications of integrating augmented reality (AR) technology into landscape design education to create a more rewarding educational environment that provides an interesting learning atmosphere and deepens students' knowledge of the landscape design process. Experimental method was conducted on the fourth-year architecture students at Port Said University. The experiment went through the following steps: a mobile-based AR application was designed, some exercises were developed and the students performed them using the application, and a questionnaire was formulated and distributed to the students to examine their feedback on integrating AR into the course. The success of the experiment was evaluated based on the students' progress, tracked by the instructor, in the exercises and their feedback acquired from the questionnaire. The study found that the integration of AR with traditional teaching methods is perceived as being useful and having a positive impact on landscape design education. Lessons learned from this study can help architectural educators in planning to use AR in their curricula to enrich architectural education.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-15
      DOI: 10.1108/SASBE-08-2021-0132
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Investigating the performance of genetic algorithm and particle swarm for
           optimizing daylighting and energy performance of offices in Alexandria,
           Egypt

    • Free pre-print version: Loading...

      Authors: Amr S. Allam , Hesham Bassioni , Mohammed Ayoub , Wael Kamel
      Abstract: This study aims to compare the performance of two nature-inspired metaheuristics inside Grasshopper in optimizing daylighting and energy performance against brute force in terms of the resemblance to ideal solution and calculation time. The simulation-based optimization process was controlled using two population-based metaheuristic algorithms, namely, the genetic algorithm (GA) and particle swarm optimization (PSO). The objectives of the optimization routine were optimizing daylighting and energy consumption of a standard reference office while varying the urban context configuration in Alexandria, Egypt. The results from the GA and PSO were compared to those from brute force. The GA and PSO demonstrated much faster performance to converge to design solution after conducting only 25 and 43% of the required simulation runs, respectively. Also, the average proportion of the resulted weighted sum optimization (WSO) per case using the GA and PSO to that from brute force algorithm was 85 and 95%, respectively. The work of this paper goes beyond the current practices for showing that the performance of the optimization algorithm can differ by changing the urban context configuration while solving the same problem under the same design variables and objectives.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-07
      DOI: 10.1108/SASBE-11-2021-0202
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Application of luminous efficacies for daylight illuminance data
           generation in subtropical Hong Kong

    • Free pre-print version: Loading...

      Authors: Emmanuel Imuetinyan Aghimien , Danny Hin Wa Li
      Abstract: Daylight plays a crucial role in the attainment of building energy savings. Harnessing daylight in building designs will require the need for daylight illuminance data. However, daylight illuminance data are scarce due to few measuring stations. Aside from being sparse, illuminance measuring stations can be expensive to set up, thus making the luminous efficacy model a better alternative. Hence, this study attempted to model horizontal luminous efficacies under the 15 Commission internationale de l'éclairage (CIE) standard skies. Therefrom, daylight illuminance was estimated from a proposed vertical luminous efficacy model. Measured solar irradiance, daylight illuminance and luminance distribution data were gathered from the local measuring station in Hong Kong. The luminance distribution data were used to classify the skies into the 15 CIE standard skies. Next, the solar irradiance and daylight data were used to derive the horizontal luminous efficacies under each standard sky. Furthermore, a vertical luminous efficacy model developed using the measured data was described, and this was used to predict vertical illuminance. It was observed that Skies 1, 8 and 13 seem to be predominant in Hong Kong. Also, the result showed that constant luminous efficacies could be used for deriving illuminance data. Furthermore, horizontal luminous efficacy ranged from 40 to 190lm/W, indicating that daylight can provide sufficient visibility during working hours. The vertical luminous efficacy model proves to offer reasonable estimations of vertical illuminance data. Further work needs to be done with more measured data to cover for spring seasons. The described model still needs to be fitted with different world climates to ascertain its universal applicability. The evaluations need to be done under obstructed sky conditions to cater for dense and clustered urban centres. The discussed luminous efficacy model could be used to derive illuminance data in the absence of measured daylight illuminance data, especially in the subtropical region. Also, the comparative advantage of daylight over artificial lighting was highlighted in this study. Unlike previous studies, this paper discusses the luminous efficacies of global, direct and diffuse components under the 15 CIE standard skies. Furthermore, the described luminous efficacy analysis provides an approach for deriving vertical and horizontal illuminance data. Such vertical data will be required for analysing building lighting requirements, sensible heat from electric lighting, and energy savings from daylighting controls. Also, the information on horizontal luminous efficacies will help evaluate solar roof and skylight designs.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-06
      DOI: 10.1108/SASBE-08-2021-0146
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Environment, resources, and surroundings based dynamic project schedule
           model for the road construction industry in New Zealand

    • Free pre-print version: Loading...

      Authors: Mahesh Babu Purushothaman , Sumit Kumar
      Abstract: The purpose of this paper is to provide insights into the environment, resources and surroundings factors to develop a system dynamic model of dynamic project scheduling that aids on-time project delivery by reducing the project delay for the road construction industry in New Zealand (NZ). This study adopted narrative inquiry methodology that involved semi-structured interviews (SSI)/expert opinion and systematic literature review (SLR) data to determine the environment, resources and surroundings factors to develop a system dynamic model of dynamic project scheduling that aids on-time project delivery by reducing the project delay for the road construction industry in NZ. The data were analysed by using descriptive analysis, Likert scale and thematic analysis techniques to understand the relationship of these factors to propose a system dynamic model. This study concludes that weather, pandemic, material, geotechnical and disaster factors highly influence while other factors such as equipment shortage, breakdown, design error, labour and event had mixed impact on the dynamic scheduling (DS) that aids on-time project delivery. The proposed system dynamic model can enhance the understanding of factors affecting DS. SLR is limited to English literature. The limitations of an SSI and a small sample size are acknowledged. The proposed model can reduce the uncertainty and scheduling errors during the planning phase and aid in the lesser scheduling modification during the execution phase. In practice, this study will be helpful for road contractors to understand environment, surroundings and resource in-control and out-of-control factors, overcome road construction delays, reduce cost, aid in stakeholder management and sustainable development. The inclusion of environment, resource and surroundings factors in force majeure clauses will bring an understanding between contracting parties and in turn reduce disputes and delays and help social causes such as on-time infrastructure delivery. For the first time in a road construction, dynamic project scheduling model that collectively included and linked environment, resource, and surroundings factors to determine the in-control and out-of-control factors for an organisation is proposed. The novelty in the paper is provided by the inclusion of the events, disasters, and pandemics influence on DS in the NZ road construction industry for the first time.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-05
      DOI: 10.1108/SASBE-08-2021-0145
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A strategy for integrating hillside dwelling design and automated
           construction techniques

    • Free pre-print version: Loading...

      Authors: Philip Tong , Hans-Christian Wilhelm
      Abstract: Sloping topographies in urban areas are often under-utilised due to complex designs and difficult access, resulting in low construction productivity and high cost. Automated construction techniques are usually limited to flat sites or lab spaces. This research combines concepts for automated and prefabricated construction with hillside dwelling design. It proposes a strategy to integrate both aspects and to equally inform design process and design output. The aims are to turn hillside access and construction automation into design generators, improve productivity and use more affordable hillside sites. Analysis of typologies for hillside housing and automated construction techniques is used to derive principles and parameters to inform a strategy and generative script for setting out, volumetric disposition and access and using the topography as a design-generator. The output from the generative script and tool can then form the basis of a high-density, low-rise dwelling development suited for serial, automation-assisted construction. The strategy is tested on a case study site. The typological analysis helps devising strategies for integrating construction robotics and design criteria for hillside housing. The generative script illustrates how a strategy is implemented and used in a design tool able to absorb varying input data, including topographies. This generates innovative, site-specific design outcomes, suited for a process that adapts contemporary construction automation techniques and allows for more efficient use of hillside sites. This research builds on construction automation methods and proposes novel combinations and adaptations for use on hillside sites. It demonstrates how robotics and generative tools can inform early design stages.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-05
      DOI: 10.1108/SASBE-11-2021-0198
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Evaluation of smart irrigation systems in hot-arid climates for green
           roofs and walls: case of Doha, Qatar

    • Free pre-print version: Loading...

      Authors: Sara M. Zaina , Fodil Fadli , Seyed Morteza Hosseini
      Abstract: The study aims to develop recommendations for optimal Internet of things (IoT) based solutions for a smart precision irrigation automation platform using morphological thinking (MT). The smart irrigation system (SIS) can be applied for green roof and green wall (GRGW) design by studying the relationships and configurations that will be analyzed, listed and synthesized, representing “solutions spaces” and their possibilities. The research examines studying various cases of SIS; and assessing and analyzing the identified case studies through a decision support system (DSS) considering several factors regarding IoT, plant characteristics, monitoring, irrigation system and schedule, climate, cost and sensors used. To develop recommendations for optimal IoT-based solutions for a smart precision irrigation automation platform. The research paper analyzes and proposes a simultaneous solution to two conflicting problems. On the one hand, the paper proposes to apply greening of walls and roofs in hot arid regions, which will achieve greater environmental comfort. However, this is extremely difficult to implement in hot arid regions, since there is an objective problem – a lack of water. At the same time, the paper proposes the most rational approaches to organizing an irrigation system with the lowest water consumption and the highest efficiency for landscaping. Accordingly, this paper focuses on evaluating different types of SIS about the hot-arid climate in Qatar. The study aims to develop recommendations for optimal IoT-based solutions for a smart precision irrigation automation platform, which can be applied for green wall and roof design.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-04-04
      DOI: 10.1108/SASBE-11-2021-0201
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • VR and AR in construction management research: bibliometric and
           descriptive analyses

    • Free pre-print version: Loading...

      Authors: Tayibe Seyman Guray , Burcu Kismet
      Abstract: The construction industry is affected by the technologies of Industry 4.0 as the buildings are transforming into complex productions. Integration of innovative technologies, such as virtual reality (VR) and augmented reality (AR), in construction management is an emerging area to increase efficiency and effectiveness. With an aim of determining the current situation, this study evaluates the literature on VR and AR within construction management research. The methodology of this research is based on descriptive and bibliometric analyses to understand and state the current relations between VR-AR technologies and construction management research. According to the meta-analysis (Preferred Reporting Items for Systematic Reviews and Meta-Analyses [PRISMA]) protocol of reviewing, 143 papers between 2010 and 2021 from Scopus, Web of Science (WoS) and Science Direct have been retrieved, and then analysis has been applied on these papers. Descriptive analysis contains increment of publications throughout the years, rates of papers according to countries and content of the publications. The bibliometric analysis involves the analysis through Excel and VOSviewer: co-occurrence of keywords, country-based, source and citation. The results of this study emphasize the increasing interest in the adoption of VR-AR technologies in construction management research. As the number of publications has been continuously increased, this trend indicates the strength and growing interest in the topic. Another significant finding is VR-AR implementation studies are mostly based on building information modelling (BIM). In this study, the results of analyses have been discussed in terms of learning, knowledge areas and digital technologies as part of construction management. This study contributes to providing a significant theoretical reference for the potentials of VR-AR in construction management research. VR-AR technologies mostly attract the interest of researchers from architectural design studies; however, there is a gap to investigate their potentials in terms of construction management. Additionally, this study focuses on the last 11 years, which indicate the latest trends.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-24
      DOI: 10.1108/SASBE-01-2022-0015
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Solar-powered smart urban furniture: preliminary investigation on limits
           and potentials of current designs

    • Free pre-print version: Loading...

      Authors: Alessandro Premier , Ali GhaffarianHoseini , Amirhosein GhaffarianHoseini
      Abstract: This research is focused on solar-powered (smart) urban furniture, and it is aimed at providing a classification of it and to understand the main problems related to the adoption of these devices and where future design-led research should focus. The methodology involved a selection of international case studies in important urban contexts focussing on three main aspects: architectural integration, context sensitivity and system visibility of photovoltaic (PV) technologies applied to smart urban furniture. The preliminary results indicate that potential limits to the application of these technologies are urban morphology and lack of design of some solutions. This research is focused on solar-powered (smart) urban furniture. Further investigation on built case studies may lead to a better understanding of the efficiency of the smart urban furniture and their appreciation by the people. This study can be useful to understand the potential use and customization of these products in New Zealand. In Auckland’s central business district, these tools can be useful to help homeless people to recharge their phones and offer access to free Wi-Fi. Energy generation can be useful also for providing temporary heating during winter and so forth. Design proposals and research highlight public benefits of smart urban furniture without considering aspects like their integration with the surrounding context. This is also the first study that identifies lack of design in some of the solutions available in the market.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-23
      DOI: 10.1108/SASBE-09-2021-0152
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Consolidating loads for sustainable construction in New Zealand:
           a literature review-based research framework

    • Free pre-print version: Loading...

      Authors: Kamal Dhawan , John Tookey , Ali GhaffarianHoseini , Amirhosein GhaffarianHoseini
      Abstract: A long-term collaborative public water infrastructure procurement contract in New Zealand adopts “Enterprise Alliance” delivery (strategy) with a Construction Consolidation Centre (CCC) (operational) logistics solution. New Zealand's unique spatial, market, regulatory and economic circumstances present a research gap pertaining to the sustainability impacts of the combinatory implementation. The paper suggests a literature review-based research framework for examining these. Systematic literature review (SLR) discovers unique New Zealand attributes, and sustainability impacts of both the approaches overseas. Towards formulating a research framework, the paper discusses sustainability of construction and its New Zealand context, and research focus within the implemented model. Significant issues from SLR reveal Design, Logistics, Impacts and Spin-offs research domains. The paper suggests a research framework and examines an appropriate research design. CCC implementation under a programme alliance is without precedent in New Zealand. Variance of New Zealand's unique attributes from North American and European characteristics behind successful implementation are likely to impact domestic outcomes. A research framework to test this hypothesis will enable investigating the relevance of the concepts to New Zealand settings and provide a contextual implementation datum. Implementation benchmarks will potentially influence public policy and enrich indigenous knowledge corpus, potentially transferrable to associated domains (urban planning, transportation and energy). The paper attempts to define a research direction in the domain of applying supply chain management principles to the New Zealand's construction sector by investigating the employment of a CCC in a collaborative environment as an infrastructure project delivery vehicle with sustainability leanings.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-17
      DOI: 10.1108/SASBE-08-2021-0151
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • System dynamics modelling coupled with multi-criteria decision-making
           (MCDM) for sustainability-related policy analysis and decision-making in
           the built environment

    • Free pre-print version: Loading...

      Authors: Ann Francis , Albert Thomas
      Abstract: System dynamics has several applications in the built environment, and few studies indicate that it has potential in evaluating sustainability. Sustainability in the built environment involves numerous entities and multiple trade-offs. Hence, a Multi-Criteria Decision-Making (MCDM) method is ideal for promoting sustainability-based decision-making in the built environment. Therefore, this study integrates system dynamics with an MCDM method to enable the sustainability assessment by capturing the time-induced dynamic changes affecting long time sustainability performance of buildings. Conventional sustainability assessment tools in the built environment lack a comprehensive evaluation that balances the needs of the society, economy and environment. This study develops a system dynamics-based framework to enable sustainability-conscious decision-making and policy analysis in the built environment. Various material, technology and water-related policies specific to the buildings are investigated for a case study building. It is found that the effect of penetration of renewable energy technology to the tune of 80% and above in the energy mix is a much superior policy in sustainability improvement in comparison to material and water-related policies. The study also demonstrates the effect of weights assigned for the different indicators on sustainability-based decisions. The study provides a methodological framework for a sustainability-based decision support system for the built environment that enables dynamic performance evaluation by coupling system dynamics with the MCDM. This coupling further strengthens system dynamics as a decision-making and policy analysis for sustainability evaluation in the built environment.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-16
      DOI: 10.1108/SASBE-09-2021-0156
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Toward digital construction supply chain-based Industry 4.0 solutions:
           scientometric-thematic analysis

    • Free pre-print version: Loading...

      Authors: Lina Gharaibeh , Kristina Maria Eriksson , Bjorn Lantz , Sandra Matarneh , Faris Elghaish
      Abstract: The wood construction industry has been described as slow in adapting efficiency-increasing activities in its operations and supply chain. The industry is still facing challenges related to digitalization, such as fragmentation, poor traceability and lack of real-time information. This study evaluates the status of digitalization in construction supply chains by thematically analyzing the existing literature and mapping research trends. A review of the key literature from 2016 to 2021 was performed. The results highlight various technologies and their applications within supply chains and identify research gaps, especially between theoretical frameworks and actual implementation using a scientometric-thematic analysis. This paper provides a conceptual framework to further aid researchers in exploring the current trends in Supply Chain 4.0 and its applications in the wood construction industry compared to other more advanced industries. Suggested directions for future research in the wood construction Supply Chain 4.0 are outlined. The existing literature still lacks a comprehensive review of the potential of a digitalized supply chain, especially in the construction industry. This framework is pivotal to continue explaining and observing the best ways to accelerate and implement Supply Chain 4.0 practices for digitalized supply chain management (SCM) while focusing specifically on the wood construction industry. The literature review results will help develop a comprehensive framework for future research direction to create a clearer vision of the current state of digitalization in supply chains and focus on the wood construction supply chain, thus, fully achieving the benefits of Supply Chain 4.0 in the wood construction industry.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-15
      DOI: 10.1108/SASBE-12-2021-0224
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Prioritising optimal underutilised historical buildings for adaptive
           reuse: a performance-based MCDA framework validation in Auckland, New
           Zealand

    • Free pre-print version: Loading...

      Authors: Itohan Esther Aigwi , Amarachukwu Nnadozie Nwadike , An Thi Hoan Le , Funmilayo Ebun Rotimi , Tanya Sorrell , Reza Jafarzadeh , James Rotimi
      Abstract: Currently trending as a practical approach to promote urban and seismic resilience, the adaptive reuse of historical buildings relies on expertise from various professional backgrounds ranging from conservation, urban planning, construction management, architecture, engineering to interior design. This paper explores the applicability of a performance-based multiple criteria decision assessment (MCDA) framework to prioritise underutilised historical buildings for adaptive reuse in Auckland, New Zealand while balancing the diverse interest of all relevant stakeholders. A focus group workshop was conducted for relevant adaptive stakeholders in Auckland, New Zealand, to test the applicability of the performance-based MCDA framework developed by Aigwi et al. (2020) and prioritise four underutilised historical building alternatives for adaptive reuse interventions in Auckland, New Zealand. Findings from this study revealed the significant potentials of the performance-based MCDA framework, both as an evidence-based measurement tool to prioritise underutilised earthquake-prone historical buildings in Auckland's central business district and as an effective decision-making strategy. Also, the framework allowed the inclusion of diverse stakeholders through the integration of collaborative rationality, ensuring consistency and transparency in the decision-making process. The successful validation of the existing performance-based MCDA framework in Auckland, New Zealand, using multiple historical building alternatives, further strengthens its preceding validation by Aigwi et al. (2019) using only two historical buildings in Whanganui, New Zealand. The findings provide a theoretical platform for urban planning researchers to advance performance-based planning for adaptive reuse to other locations and fields. There are also interesting implications for local councils, heritage agencies, architects, urban planners, policymakers, building owners and developers in Auckland, New Zealand, as a guide to improving their understandings of: (1) the intangible values of optimal historical buildings perceived by the community as worthy of protection through adaptive reuse; and (2) the targeted needs of communities in the new functions of an optimal alternative from a group of representative historical building alternatives.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-04
      DOI: 10.1108/SASBE-08-2021-0139
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • An investigation for integration of deep learning and digital twins
           towards Construction 4.0

         This is an Open Access Article Open Access Article

    • Free pre-print version: Loading...

      Authors: Mergen Kor , Ibrahim Yitmen , Sepehr Alizadehsalehi
      Abstract: The purpose of this paper is to investigate the potential integration of deep learning (DL) and digital twins (DT), referred to as (DDT), to facilitate Construction 4.0 through an exploratory analysis. A mixed approach involving qualitative and quantitative analysis was applied to collect data from global industry experts via interviews, focus groups and a questionnaire survey, with an emphasis on the practicality and interoperability of DDT with decision-support capabilities for process optimization. Based on the analysis of results, a conceptual model of the framework has been developed. The research findings validate that DL integrated DT model facilitating Construction 4.0 will incorporate cognitive abilities to detect complex and unpredictable actions and reasoning about dynamic process optimization strategies to support decision-making. The DL integrated DT model will establish an interoperable functionality and develop typologies of models described for autonomous real-time interpretation and decision-making support of complex building systems development based on cognitive capabilities of DT. The research explores how the technologies work collaboratively to integrate data from different environments in real-time through the interplay of the optimization and simulation during planning and construction. The framework model is a step for the next level of DT involving process automation and control towards Construction 4.0 to be implemented for different phases of the project lifecycle (design–planning–construction).
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-02
      DOI: 10.1108/SASBE-08-2021-0148
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Personal thermal comfort models: a deep learning approach for predicting
           older people’s thermal preference

    • Free pre-print version: Loading...

      Authors: Larissa Arakawa Martins , Veronica Soebarto , Terence Williamson , Dino Pisaniello
      Abstract: This paper presents the development of personal thermal comfort models for older adults and assesses the models’ performance compared to aggregate approaches. This is necessary as individual thermal preferences can vary widely between older adults, and the use of aggregate thermal comfort models can result in thermal dissatisfaction for a significant number of older occupants. Personalised thermal comfort models hold the promise of a more targeted and accurate approach. Twenty-eight personal comfort models have been developed, using deep learning and environmental and personal parameters. The data were collected through a nine-month monitoring study of people aged 65 and over in South Australia, who lived independently. Modelling comprised dataset balancing and normalisation, followed by model tuning to test and select the best hyperparameters’ sets. Finally, models were evaluated with an unseen dataset. Accuracy, Cohen’s Kappa Coefficient and Area Under the Receiver Operating Characteristic Curve (AUC) were used to measure models’ performance. On average, the individualised models present an accuracy of 74%, a Cohen’s Kappa Coefficient of 0.61 and an AUC of 0.83, representing a significant improvement in predictive performance when compared to similar studies and the “Converted” Predicted Mean Vote (PMVc) model. While current literature on personal comfort models have focussed solely on younger adults and offices, this study explored a methodology for older people and their dwellings. Additionally, it introduced health perception as a predictor of thermal preference – a variable often overseen by architectural sciences and building engineering. The study also provided insights on the use of deep learning for future studies.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-01
      DOI: 10.1108/SASBE-08-2021-0144
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Impact of stakeholder management on efficient construction waste
           management

    • Free pre-print version: Loading...

      Authors: Emmanuel Yaw Frempong-Jnr , Simon Ofori Ametepey , John Edward Cobbina
      Abstract: The construction industry’s contribution to environmental deterioration is widely established in the literature, implying that addressing this issue will require a coordinated effort from all stakeholders. According to literature, stakeholder involvement without stakeholder management (SKM) is not enough, in ensuring efficient construction waste management (CWM). This study investigates the impact of SKM on efficient CWM by aggregating all relevant SKM variables and measuring their degree of influence on efficient CWM. This study used a four-stage research approach that included a literature review, a pilot study, a questionnaire survey and statistical analysis. After a thorough examination of the literature, nine essential SKM factors were identified and tested by a questionnaire survey following a pilot study. A total of 310 questionnaires were filled out and returned for analysis (exploratory and confirmatory factor analysis). The study established that SKM is a unidimensional construct since all the variables extracted unto one underlying component with total variance explained (TVE), accounting for 58.938% of the total Variance in the measure of SKM in efficient CWM. Additionally, the reliability and validity test results satisfied the recommended thresholds, thus justifying the factorability of the construct. Furthermore, the hypothesis test revealed that SKM has a statistically significant impact on efficient CWM, implying that increasing SKM will have a beneficial impact on efficient CWM. The study is limited to material waste management in the construction industry and the outcome was determined solely by a field survey in Ghana. Extending the study to other jurisdictions would have improved its findings and made them easier to generalise. The study’s findings are helpful for practitioners and researchers, especially regarding the influence of the eight SKM variables on efficient CWM. The study’s findings will reduce pollution, thus enhancing public health and encouraging social inclusion through the creation of jobs in the waste management chain. The uniqueness of this study is anchored on the fact that no CWM study has considered all the eight SKM variables measured in this study at the same time. Also, this study has contributed to the literature by establishing the determinants of SKM in efficient CWM in Ghana.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-01
      DOI: 10.1108/SASBE-08-2021-0147
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • The role of internet of things (IoT) in the assessment and communication
           of indoor environmental quality (IEQ) in buildings: a review

    • Free pre-print version: Loading...

      Authors: Evandro Eduardo Broday , Manuel Carlos Gameiro da Silva
      Abstract: The changes brought by Industry 4.0 go beyond transformations in the industrial environment. The increasingly frequent digitization and robotization of activities is not only restricted to the industrial environment, but also to people's daily routine. People spend a large part of their time inside buildings, and maintaining adequate Indoor Environmental Quality (IEQ) is an essential factor for a healthy and productive environment. In this sense, the purpose of this study is to verify how the Internet of Things (IoT) is being used to improve the indoor environment, through sensors that instantly measure the conditions of the environment. The aim of this paper is to verify, through a literature review, how IoT is being used for building control (for energy saving purposes) and to monitor IEQ conditions inside buildings, in order to provide a better environment for occupants, in terms of health and comfort. By combining keywords in databases, PRISMA method was used to select the articles for analysis, and 91 articles were analyzed. The main findings in this research are: (1) the main purpose for applying IoT inside buildings is to reduce energy consumption; (2) there is an interest in developing low-cost sensoring devices with a learning approach; (3) Machine Learning methods are mainly used for energy saving purposes and to learn about occupants' behavior inside buildings, focusing on thermal comfort; (4) sensors in the IoT era are a requirement to help improve people's comfort and well-being. Studies directly correlating IoT and IEQ are limited. This paper emphasises the link between them, through the presentation of recent methods to control the built environment.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-03-01
      DOI: 10.1108/SASBE-10-2021-0185
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Developing a collaborative framework for construction projects in emerging
           economies

    • Free pre-print version: Loading...

      Authors: Hazhar Faris , Mark Gaterell , David Hutchinson
      Abstract: The construction industry is a primary contributor to the development of emerging economies such as the Kurdistan Region of Iraq. However, the sector is underperforming, and products are not meeting expectations. A lack of collaboration is considered a significant contributor to these issues. Various researchers have identified factors to improve collaborative approaches. However, there is still a lack of clear frameworks to help implement collaboration in the construction industry, especially in emerging economies. Therefore, this study aims to develop a framework to implement collaboration in the construction industry. This article utilises a review of literature, questionnaire and interviews with experts in the construction industry in order to develop a framework to achieve collaboration in construction projects. The research presents a framework that distributes the factors of collaboration over the project lifecycle stages in accordance with the Royal Institute of British Architects (RIBA) Plan of Work 2007. Each factor is divided into a set of enabling conditions which must be satisfied to ensure that the given specific factors are delivered. Additionally, the framework suggests appointing a collaboration champion at the beginning of the project to manage the process. The research contributes to scarce literature about collaboration practices in the Kurdistan Region and in emerging economies in general.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-02-28
      DOI: 10.1108/SASBE-10-2021-0186
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Green construction and environmental performance: an assessment
           framework

    • Free pre-print version: Loading...

      Authors: De-Graft Owusu-Manu , Prosper Babon-Ayeng , Ernest Kissi , David J. Edwards , Derek Okyere-Antwi , Hatem Elgohary
      Abstract: Construction firms worldwide are increasingly taking pragmatic steps towards addressing environmental problems arising from their activities. Nonetheless, there is a paucity of studies focused on the nexus between green construction and environmental performance. Hence, this study aims to examine the linkages between green construction practice and environmental performance. An extensive literature review was conducted to identify the relevant dimensions of green construction practice and indicators for measuring environmental performance. Variables collated were then subjected to pre-assessment and pre-testing processes. The pre-assessment was used as a preliminary content validation where experts assessed the various dimensions of green construction practice and indicators for measuring environmental performance proposed and determine if indeed the variables represent what the study set out to measure. Data were collected from construction professionals within the Ghana's Kumasi Metropolis. The sample size for the study was 100 experts in sustainable construction methods in the construction industry. A total of 63 responses were received out of the 100 target respondents, accounting for a 63% response rate. Data generated was analysed using mean score analysis and one-sample t-test to determine the level of significance of the various green construction practices and indicators for measuring environmental performance. A Pearson correlation analysis was undertaken to ascertain the relationships that exist among the various dimensions of green construction practice and indicators for measuring environmental performance. Finally, multiple linear regression analysis was utilised to ascertain the effect of the adoption of green construction practice on environmental performance. The results indicate that all the green construction practices and the indicators of environmental performance identified from the literature were significant at p = 0.05. The study's findings revealed that energy management is the most significant construct of green construction practice followed by storm-water management. Furthermore, the analysis showed that the preservation of water is the most significant environmental performance indicator followed by sanitation. The regression model developed also explained that 75% of the variations in environmental performance are explained by green construction practice. Notwithstanding the study's achievements, one major limitation the research faced was the relatively small sample size. This study provides sufficient data for construction professionals to identify the various green construction practices that could enhance environmental performance. The study's results showed that environmental performance could be improved by adopting the key green construction practices identified in this study. Pragmatic directions are also provided to stakeholders in the construction industry to take a critical look at the environmental performance indicators that were significant. This pioneering research attempts to investigate the linkages between green construction practice and environmental performance in Ghana. Key results provide a critical evidential influence of green construction on environmental performance and make a crucial contribution to the current body of knowledge.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-02-18
      DOI: 10.1108/SASBE-07-2021-0120
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • A BIM-based LCA tool for sustainable building design during the early
           design stage

    • Free pre-print version: Loading...

      Authors: Aliakbar Kamari , Bartlomiej Marek Kotula , Carl Peter Leslie Schultz
      Abstract: A robust method in environmental load assessment of buildings is urgently required to reduce the environmental burden of the construction industry. While the industry utilizes the life cycle assessment (LCA) method to assess environmental impacts of detailed designs, the implementation of changes at that late stage of development is often expensive and undesirable. On the other hand, during the early design stages, the LCA method is severely limited by the lack of information available, e.g., uncertainty about final materials to be used. This research study investigates how building information modeling (BIM) can facilitate LCA analysis at an early design stage. A literature review is conducted to establish a framework for BIM and LCA integration, which creates the foundation for the development of a new BIM-based LCA tool. The tool is empirically evaluated on a large case study of a residential building in Denmark. Case study results show that the new tool facilitates decision-making in an integrated design process, providing reliable LCA results on an early stage model, while avoiding intermediate manual input by the end user in contrast to other commercial LCA tools. A first prototype of a BIM-based tool is demonstrated, which allows professionals, small architectural companies, students and researchers to calculate the environmental loads of the building in the early design stage in an automated, transparent and time-saving manner.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-01-31
      DOI: 10.1108/SASBE-09-2021-0157
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Risk management in guaranteed maximum price (GMP) contracts

    • Free pre-print version: Loading...

      Authors: Asha Dulanjalie Palihakkara , B.A.K.S. Perera
      Abstract: Guaranteed maximum price (GMP) contracts are becoming an increasingly popular contract solution; however, many projects experience higher levels of risk and exceed predetermined GMPs, failing to accomplish the main motive behind the concept. Thus, the study identified a risk management process for GMP projects. The study adopted a quantitative approach consisting of three Delphi rounds. The collected data were analysed using statistical data analysis tools. The study identified 17 highly significant risk factors in GMP projects and determined their levels of severity. Subsequently, risk allocation amongst the client, contractor and consultant and strategies to handle the most significant risk factors were determined. The study identified poorly defined scope and design changes as the most critical risks in GMP projects. Moreover, strategies such as clearly defining the project scope, preparing precise documentation, early involvement of the contractor and using a partnering approach can be deployed to reduce the risk in GMP projects. Each risk has to be assigned to the party who can best manage it, depending on its nature. The study addresses the literature gap pertaining to risk management of GMP contracts by identifying its overall process, including the identification of significant risks based on the severity levels; risk allocation amongst the client, contractor and consultant; and identification of risk handling techniques suitable for each significant risk factor. The study contributes to the industry by identifying a systematic risk management process to implement GMP projects successfully within the stipulated time, cost and quality.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-01-31
      DOI: 10.1108/SASBE-09-2021-0176
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • The sustainability challenge of product information quality in the design
           and construction of facades: lessons from the Grenfell Tower fire

         This is an Open Access Article Open Access Article

    • Free pre-print version: Loading...

      Authors: Soheila Bahrami , Davood Zeinali
      Abstract: This paper explores the quality and flow of facade product information and the capabilities for avoiding the risk of facade fires early in the design process. A qualitative case study using the process tracing method is conducted in two stages. First, a thematic analysis of reports and literature identified two categories for the problems that caused fast fire spread across the Grenfell Tower facade. This enabled classifying the identified problems into four stages of a facade life cycle: product design and manufacturing, procurement, facade design and construction. Second, the capabilities for avoiding the problems were explored by conducting in-depth interviews with 18 experts in nine countries, analyzing design processes and designers' expertise and examining the usability of three digital interfaces in providing required information for designing fire-safe facades. The results show fundamental flaws in the quality of facade product information and usability of digital interfaces concerning fire safety. These flaws, fragmented design processes and overreliance on other specialists increase the risk of design defects that cause fast fire spread across facades. The findings have implications for standardization of building product information, digitalization in industrialized construction and facade design management. This research adds to the body of knowledge on sustainability in the built environment. It is the first study to highlight the fundamental problem of facade product information, which requires urgent attention in the rapid transition toward digital and industrialized construction.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-01-27
      DOI: 10.1108/SASBE-06-2021-0100
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Sustainable construction and the versatility of the quantity surveying
           profession in Singapore

    • Free pre-print version: Loading...

      Authors: Dr Temitope Omotayo , Sin Wen Tan , Damilola Ekundayo
      Abstract: The changing role of quantity surveyors in the new paradigm of sustainable construction requires studies into new competencies and skills for the profession. The impact of sustainable construction on quantity surveying services, engagement and how they manage challenges provided an indication of the success indicators of the quantity surveying profession in meeting the sustainable construction needs. A five-point Likert scale was developed from the list of quantity surveying firms in Singapore. An 85% response rate from 60 quantity surveying firms contacted in this study provided 51 responses. Descriptive statistics and factor analysis were employed to evaluate the findings. The factor analysis categorised the drivers derived from the literature into awareness of sustainable construction, adversarial role on green costing; carbon cost planning; valuing a sustainable property; common knowledge of sustainable construction; and lack of experience in sustainable construction. The research findings supported the idea of increased sustainable construction skills in quantity surveying education, research and training. The dearth of quantity surveyors with sustainable construction experience must focus on quantity surveying professional bodies and higher education. The quantity surveying profession needs reskilling in green costing and carbon cost planning to meet the needs of sustainable construction.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-01-11
      DOI: 10.1108/SASBE-07-2021-0125
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Learning from the biology of evolution: exaptation as a design strategy
           for future cities

    • Free pre-print version: Loading...

      Authors: Alessandro Melis , Jose Antonio Lara-Hernandez , Barbora Melis
      Abstract: This paper highlights the importance of transdisciplinary studies in times of crisis. In the first part, the study shows the benefits of the introduction of literature on biology to better understand the evolutionary dynamics of architecture. The focus of the research concerns architectural exaptation. In biology, exaptation is a functional shift of a structure that already had a prior but different function. We will also learn that, in biology, all creative systems are redundant and involve variability and diversity. As a conclusion, through the comparison between biology and architecture, we will, therefore, try to build an architectural taxonomy that demonstrates how indeterminism is not a subcategory of design. Instead, design paradigms in which redundancy and variable diversity of structures reflect functionalism constitute an equivalent and essential complement with respect to design determinism. It demonstrates how architectural exaptation, intended as an indeterministic and radical mode of design, can contribute to overcoming the current global crisis because structural redundancy is frequently functional, mostly in ever-changing and unstable environments. For instance, the failure of a planned function of a city can be an opportunity to re-use a structure designed for an obsolete function to respond to unexpected constraints.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2022-01-06
      DOI: 10.1108/SASBE-08-2021-0141
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2022)
       
  • Drivers of solar photovoltaic deployment in South African public
           universities: a Delphi study

    • Free pre-print version: Loading...

      Authors: Nutifafa Geh , Fidelis Emuze , Dillip Kumar Das
      Abstract: Solar photovoltaic energy is the fastest growing renewable energy in South Africa, and deployment at public universities is critical in order to meet the high energy demand on campuses in a more sustainable manner. To promote and support deployment, it is necessary to know the factors that drive adoption of the technology. Thus, the aim of this study was to identify the factors which engender deployment of photovoltaic energy in public universities in South Africa. Through an extensive literature review, the factors which drive photovoltaic energy deployment were identified and a three round Delphi survey was conducted for panellists to rate the drivers. The data were analysed using SPSS Version 27, and the mean and inter-quartile range values were used to identify the significant drivers within the public university sector. The findings suggested that the deployment of photovoltaic energy is engendered by the direct and indirect benefits, social influences and the relative advantage of photovoltaic energy usage. For instance, universities install photovoltaic energy because of the financial gains that are made through reduction of energy cost. The deployment is also motivated by the reduction of energy-related greenhouse gases, enhancement of university sustainability performance, and the contribution to the Sustainable Development Goals. A significant contribution to the body of knowledge regarding the drivers of photovoltaic energy deployment has been made in the paper from the perspective of a public university. The contribution fills the knowledge gap in South Africa by contributing valuable information to enable decision-makers to gain better understanding of the key issues that call for more attention in promoting and supporting photovoltaic energy deployment in the sector.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-12-15
      DOI: 10.1108/SASBE-08-2021-0140
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • A qualitative assessment of the impact of smart homes and environmentally
           beneficial technologies on the UK 2050 net-zero carbon emission target

    • Free pre-print version: Loading...

      Authors: Ghasson Shabha , Francesca Barber , Paul Laycock
      Abstract: There are 29 million homes in the UK, accounting for 14% of the UK's energy consumption. This is given that UK has one of the highest water and energy demands in Europe which needs to be addressed according to the Committee on Climate Change (CCC). Smart homes technology holds a current perception that it is principally used by “tech-savvy” users with larger budgets. However, smart home technology can be used to control water, heat and energy in the entire house. This paper investigates how smart home technology could be effectively utilised to aid the UK government in meeting climate change targets and to mitigate the environmental impact of a home in use towards reducing carbon emissions. Both primary and secondary data were sought to gain insight into the research problem. An epistemological approach to this research is to use interpretivism to analyse data gathered via a semi-structured survey. Two groups of participants were approached: (1) professionals who are deemed knowledgeable about smart home development and implementation and (2) users of smart home technology. A variety of open-ended questions were formulated, allowing participants to elaborate by exploring issues and providing detailed qualitative responses based on their experience in this area which were interpreted quantitatively for clearer analysis. With fossil fuel reserves depleting, there is an urgency for renewable, low carbon energy sources to reduce the 5 tonnes annual carbon emissions from a UK household. This requires a multi-faceted and a multimethod approach, relying on the involvement of both the general public and the government in order to be effective. By advancing energy grids to make them more efficient and reliable, concomitant necessitates a drastic change in the way of life and philosophy of homeowners when contemplating a reduction of carbon emissions. If both parties are able to do so, the UK is more likely to reach its 2050 net-zero carbon goal. The presence of a smart meter within the household is equally pivotal. It has a positive effect of reducing the amount of carbon emissions and hence more need to be installed. Further research is needed using a larger study sample to achieve more accurate and acceptable generalisations about any future course of action. Further investigation on the specifics of smart technology within the UK household is also needed to reduce the energy consumption in order to meet net-zero carbon 2050 targets due to failures of legislation. For smart homes manufacturers and suppliers, more emphasis should be placed to enhance compatibility and interoperability of appliances and devices using different platform and creating more user's friendly manuals supported by step-by-step visual to support homeowners in the light of the wealth of knowledge base generated over the past few years. For homeowners, more emphasis should be placed on creating online knowledge management platform easily accessible which provide virtual support and technical advice to home owners to deal with any operational and technical issues or IT glitches. Developing technical design online platform for built environment professionals on incorporating smart sensors and environmentally beneficial technology during early design and construction stages towards achieving low to zero carbon homes. This paper bridges a significant gap in the body of knowledge in term of its scope, theoretical validity and practical applicability, highlighting the impact of using smart home technology on the environment. It provides an insight into how the UK government could utilise smart home technology in order to reduce its carbon emission by identifying the potential link between using smart home technology and environmental sustainability in tackling and mitigating climate change. The findings can be applied to other building types and has the potential to employ aspects of smart home technology in order to manage energy and water usage including but not limited to healthcare, commercial and industrial buildings.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-12-07
      DOI: 10.1108/SASBE-07-2021-0112
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • The role of citizens and transformation of energy, water, and waste
           infrastructure for an intelligent, sustainable environment in cities

    • Free pre-print version: Loading...

      Authors: Margarida Rodrigues , Mário Franco
      Abstract: This study aims to list indicators to allow construction of a ranking for environmental sustainability in towns and cities, in relation to energy and water consumption and the prevention, production and management of waste. A systematization of theoretical and empirical indices was elaborated, focused on this dimension. The results allow presentation of a ranking supported by multivariate statistical techniques – Exploratory Factor Analysis and Principal Component Analysis – confirming its scientific quality and robustness, with this being the main contribution of the study. The analysis of the ranking revealed the great heterogeneity of towns and cities in Portugal, with the city of Lisbon and the town of Sardoal in the Top 20, suggesting that the achievement of the goal of environmental sustainability is proactively associated with the ability to articulate resources with infrastructure and the strategic and political will applied, being essential the appeal to the individual awareness of each citizen, even if the design of green infrastructures does not depend on citizens’ behavior. This means that redesigned green infrastructures may exist, but their success depends. In addition, cities are increasingly moving toward a circular economy articulated holistically with open and participatory governance. The empirical evidence obtained in the Portuguese context provides some implications for practice, by showing it is possible to counteract the negative effects of rapid urban growth and its environmental consequences in urban and non-urban areas. The main contribution and innovation of this study lie in the presentation of empirical evidence that the population density of a city or town does not have a cause–effect relationship with its level of environmental sustainability.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-11-29
      DOI: 10.1108/SASBE-06-2021-0094
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Analysing challenges to smart waste management for a sustainable circular
           economy in developing countries: a fuzzy DEMATEL study

    • Free pre-print version: Loading...

      Authors: Honey Yadav , Umang Soni , Girish Kumar
      Abstract: Waste can be converted to a high-value asset if treated properly with smart solutions. The purpose of this research is to identify critical barriers hindering smart waste management (SWM) implementation in developing economies using comparative analysis and a mixed-method approach. The objective of this work is to provide exhaustive insight including the smart cities projects to discuss the deferring parameters toward IoT-enabled waste management systems. To accomplish the objective, the present study followed mixed-method approach consisting of two phases: In the first qualitative phase, barriers in the adoption of IoT (Internet of Things) for SWM were identified using extensive literature review and discussion with selected experts. In the second phase, the quantitative analysis using the Fuzzy DEMATEL (Decision-Making Trial and Evaluation Laboratory) method was performed on the selected barriers. The fuzzy DEMATEL methodology helps in prioritizing the most significant causal barrier by separating them into the cause-effect group. The comparative analysis was used to understand two different perceptions. To provide more detailed insight on the problems faced while implementing SWM in developing economies. The results disclose that “Lack of government strict regulatory policies,” “Lack of proper financial planning” and “Lack of benchmarking processes” are the most critical causal barriers toward IoT-enabled SWM implementation that are hindering the vision of efficient and effective waste management system. Also, “Difficulty in implementing innovative technologies” and “Absence of Dynamic Scheduling and Routing” fall under the potential causal category. The effect barriers include “Lack of awareness among the community,” “Lack of source segregation and recycling commitment” and “Lack of service provider” as concluded in results considering the comparative analysis. The results can aid the policy-makers and stakeholders to identify the significant barriers toward a sustainable circular economy and mitigate them when implementing IoT-enable waste practices. Also, it assists to proactively build programs, policies, campaigns and other measures to attain a zero-waste economy. The research is focused on the context of India but it provides new details which can be helpful for other developing economies to relate. The research addresses the call for studies from public-sector and citizen’s perspectives to understand the acknowledgment of SWM systems and critical success factors using qualitative and exploratory method analysis. The practical implications of the study include strict regulatory policies and guidelines for SWM acceptance, proper financial administration and benchmarking waste-recycling practices (prominent causal barriers). The practical implication of the results includes assistance in smart city projects in handling barriers proactively. The “Lack of Benchmarking processes” provides a critical application to standardized recycling practices in developing economies to improve the quality of the recyclable material/product. The comparative analysis also provides in-depth reflection toward the causal barriers from both the perspective which can help the government and stakeholders to work in a unified manner and establish an efficient waste management system. The results also conclude the need for targeted training programs and workshops for field implementation of innovative technologies to overcome the causal barrier. Moreover, policy-makers should focus to improve source segregation and recycling practices and ensure dedicated communication campaigns like Swachh Bharat Abhiyan to change the behavioral functioning of the community regarding waste. Lastly, developing economies struggle with the adequacy of resources to establish SWM systems, hence the authors conclude that proper financial planning is required at the ground level for smart city projects to overcome the spillover effects. The social implications of the study include a reduction in pollution and efficient handling of waste resulting in a healthier and cleaner environment using IoT technology. Also, the results assist decision-makers in developing economies like India to establish smart city projects initiatives effectively to improve the quality of life. It proposes to establish standardized recycling processes for the better quality of recyclables and help in attaining a sustainable circular economy. The research is novel as it provides comprehensive and comparative information regarding the barriers deferring SWM including the field barriers. To our consideration, the present study serves the first to address the comparative analysis of barriers in IoT-enabled waste systems and establish the relationship from both the perspective in middle-lower income economies. The study also suggests that the effect barriers can be overcome automatically by mitigating the causal barriers in the long run.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-11-12
      DOI: 10.1108/SASBE-06-2021-0097
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Labor waste in housing construction projects: an empirical study

    • Free pre-print version: Loading...

      Authors: Soraya Nassri , Saeed Talebi , Faris Elghaish , Kayvan Koohestani , Stephen McIlwaine , M. Reza Hosseini , Mani Poshdar , Michail Kagioglou
      Abstract: High-level labor waste is a major challenge in construction projects. This paper aims to identify, quantify and categorize labor waste in the context of Iranian housing construction projects. This research uses a case study approach, with empirical data collected through direct observations and semi-structured interviews. Having triangulated the findings from the literature review and empirical studies, a list of eight types of waste was derived for the thirteen observed laborers in ten case study projects. The empirical studies allowed the labor waste identified from the literature to be verified and refined by considering it in the context of the observed activities, and led to two new types of waste being identified which were not considered in the literature. Findings indicate that nearly 62% of laborers' time is spent on non-value-adding activities. It appeared that “unnecessary movement,” “waiting” and “indirect work” make up the highest labor waste. This research focuses only on onsite resource flows in a housing construction site. It does not include offsite flows such as material delivery to site. The findings have provided substantial evidence on type and amount of labor waste and provide a solid basis to stimulate construction actors to participate in reducing labor waste and improving productivity.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-10-29
      DOI: 10.1108/SASBE-07-2021-0108
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • An integrated space-based building maintenance management model using
           multi-objective optimization

    • Free pre-print version: Loading...

      Authors: Huthaifa AL-Smadi , Abobakr Al-Sakkaf , Tarek Zayed , Fuzhan Nasiri
      Abstract: The purpose of this study is to minimize cost and minimize building condition. Weibull distribution approach was employed to generate deterioration curves over time. The third floor of Concordia University’s Engineering And Visual Arts (EV) Complex in Montreal, Canada, served as a case study to test the maintenance model and determine the optimal maintenance activities to be performed. This research has demonstrated that there is insufficient fund allocation for the maintenance of non-residential buildings. Therefore, this research focused on designing and developing a maintenance optimization model that provides the type of spaces (architectural system) in a building. Sensitivity analysis was used to calculate weights to validate the model. Particle swarm optimization, based explicitly on multiple objectives, was applied for the optimization problem using MATLAB. Following 100 iterations, 13 non-dominant solutions were generated. Not only was the overall maintenance cost minimized, but the condition of the building was also maximized. Moreover, the condition prediction model demonstrated that the window system type has the most rapid deterioration in educational buildings. The model is flexible and can be modified by facility managers to align with the required codes or standards.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-10-28
      DOI: 10.1108/SASBE-04-2021-0064
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Exploring the critical success determinants for supply chain management in
           modular integrated construction projects

    • Free pre-print version: Loading...

      Authors: Ibrahim Yahaya Wuni , Geoffrey Qiping Shen
      Abstract: Modular integrated construction (MiC) projects are co-created by a network of organizations and players providing different roles, information and activities throughout the supply chains. Hence, a successful delivery of MiC projects can hardly be decoupled from effective supply chain management (SCM). This study investigated the critical success determinants of effective SCM in MiC projects. Comprehensive literature research and expert review identified 20 candidate success determinants, which formed the basis for a structured questionnaire survey of experts in eighteen countries. The study computed the mean scores, normalized mean values and significance indices of success determinants for SCM in MiC projects. The analysis revealed that design for SCM, effective communication and information sharing, organizational readiness and familiarity with MiC, seamless integration and coordination of supply chain, early involvement of critical supply chain stakeholders and extensive supply chain planning are the top five critical success determinants of effective SCM in MiC projects. The 20 success determinants are categorized into five: project strategy, bespoke competencies, process management, stakeholder management and risk management. The study has some limitations. The smaller sample size could affect the generalizability of the results. The generalized analysis of the success determinants overlooked their sensitivities to specific contexts, industry climates and project types. The study established a novel set of critical success determinants for SCM in MiC projects that have not been explicitly discussed in the MiC success literature and described their hypothetical dynamic linkages. It contributes to a better understanding of how best to manage the MiC project supply chain effectively.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-10-27
      DOI: 10.1108/SASBE-03-2021-0051
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Analyzing the environmental sustainability of primary schools’ facades
           within the scope of life cycle assessment in Turkey and recommendations
           for improvement

    • Free pre-print version: Loading...

      Authors: Cagla Keles , Fatih Yazicioglu
      Abstract: The purpose of this paper is to identify the sustainability conditions of primary schools in Turkey within the scope of the life cycle assessment (LCA). It is aimed to develop optimum alternatives to reduce the environmental impact of primary schools and reach environmental sustainability targets of the sustainable development goals in Turkey. From the construction project of 103 buildings located in Istanbul, 10 case buildings with various typical plans were chosen for analysis. The results regarding their life cycle energy and carbon emission for material production, operation and maintenance stages were calculated for a lifespan of 50 years. Results were evaluated and compared within the scope of environmental sustainability. Optimum alternatives for improving the environmental sustainability and performances of selected case buildings’ facades were developed, and the life cycle energy and carbon emission for proposed conditions were calculated. The obtained results were evaluated for current and proposed conditions. Results showed that reinforced concrete material contributes the most to the life cycle-embodied energy and CO2 emission of buildings. Cooling load increases the life cycle operational energy (LCOE) and CO2 emission of buildings. Using high-performance glazing significantly reduces LCOE and CO2 emission. Recycled and fiber-based materials have significant potential for reducing life cycle-embodied energy and CO2 emission. This study has been developed in response to achieving sustainable development targets on public buildings in Turkey. In this regard, external walls of primary schools were analyzed within the scope of LCA and recommendations were made to contribute to the policies and regulations requested by the Government of Turkey. This study proves that alternative and novel materials have great potential for achieving sustainable public buildings. The study answers to questions about reducing the environmental impact of primary school buildings by using LCA approach with a holistic point of view.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-10-19
      DOI: 10.1108/SASBE-04-2021-0072
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Public–private partnerships for sustainable infrastructure development
           in Ghana: a systematic review and recommendations

    • Free pre-print version: Loading...

      Authors: Isaac Akomea-Frimpong , Xiaohua Jin , Robert Osei-Kyei , Augustine Senanu Kukah
      Abstract: The contribution of the public–private partnership (PPP) model towards the achievement of the United Nation (UN)'s Sustainable Development Goals (SDGs) has been widely acknowledged. However, limited studies have shed light on the connection between PPPs and the achievement of these coveted goals in Ghana. In this study, the authors aimed at analysing and synthesising the existing literature on the use of PPP to achieve sustainability in infrastructure projects in the country. A three-step approach was used to retrieve and review 60 selected articles aided by content analysis. The analysis showed that all existing relevant publications on the application of the PPP model to attain UN’s SDGs in the country are organised around dominant themes, such as poverty alleviation, urban development, waste management and risk management. However, the review revealed little studies exist on pertinent issues relating to PPPs and sustainable development goals, such as climate action, critical resilience, sustainable finance and clean energy. Although the study is limited to 60 articles in Ghana, the results reveal pertinent gaps for further research studies to achieve sustainable infrastructural development in Ghana and other countries. Holistically, the outcome of this study will serve as a guide to project managers to understand essential issues on attaining sustainability on public projects. This article contributes to the literature and practice on the significance of PPP in mainstreaming UN's SDGs in public infrastructure projects.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-09-30
      DOI: 10.1108/SASBE-07-2021-0111
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Non-revenue water reduction strategies: a systematic review

    • Free pre-print version: Loading...

      Authors: Abdelrahman M. Farouk , Rahimi A. Rahman , Noor Suraya Romali
      Abstract: Sustainability involves ensuring that sufficient resources are available for current and future generations. Non-revenue water (NRW) creates a barrier to sustainability through energy and water loss. However, a comprehensive overview of NRW reduction strategies is lacking. This study reviews the existing literature to identify available strategies for reducing NRW and its components and discusses their merits. A systematic literature review was conducted to identify and analyze different strategies for reducing NRW. The initial search identified 158 articles, with 41 of these deemed suitably relevant following further examination. Finally, 14 NRW reduction strategies were identified from the selected articles. The identified NRW reduction strategies were grouped into strategies for reducing (1) apparent losses (AL), (2) real losses (RL) and (3) water losses, with the latter involving the combination of AL and RL. The strategies adopted most frequently are “prevent water leakage” and “control water pressure.” In addition, water distribution network (WDN) rehabilitation has additional benefits over other RL reduction strategies, including saving water and energy, increasing hydraulic performance and enhancing reliability. Finally, utilizing decision support systems is the only strategy capable of reducing multiple NRW categories. This review provides insights into the overall NRW problem and the strategies best equipped to address it. Authorities can use these findings to develop case-specific NRW reduction action plans that save water and energy, while providing other economic benefits. In addition, NRW reduction can improve WDN reliability.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-09-28
      DOI: 10.1108/SASBE-04-2021-0071
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Application of Soft Landings concept in Sri Lanka to narrow the building
           performance gap, enablers and barriers

    • Free pre-print version: Loading...

      Authors: Aravindi Samarakkody , B.A.K.S. Perera
      Abstract: Like in many other countries, in Sri Lanka, minimal attention is paid to the performance of a building after it has been taken over by its end-user. Hence, a gap often exists between the actual performance of the building and its predicted performance. This performance gap led to the origin of the Soft Landings (SL) framework by Building Services Research Information Association (BSRIA). The applications of SL have been studied only in contexts like Australia, New Zealand and the United Kingdom, although optimal building performance is being discussed extensively all over the world. Thus, this paper aims to determine the possibility of applying SL to building construction projects in Sri Lanka. Two rounds of expert interviews were conducted to collect data; they were analyzed using content analysis and later validated using pattern matching. At a glance, the application of SL is welcoming as the performance gap in Sri Lankan buildings is significant. However, the existing practices encumber the application of certain aspects like three years post-construction aftercare. The actual application to the Sri Lankan context requires a modification to the periods specified for the SL stages in theory. Adaptability of the SL framework has not been systematically researched in the context of a developing country yet. The enablers and barriers in the application of SL and the level of effort required in its implementation too have not been studied before. The research addressed this literature gap as well as the industry need.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-09-23
      DOI: 10.1108/SASBE-03-2021-0052
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Sustainability assessment model for heritage buildings

    • Free pre-print version: Loading...

      Authors: Abobakr Al-Sakkaf , Ashutosh Bagchi , Tarek Zayed , Sherif Mahmoud
      Abstract: The purpose of this research is to focus on the evaluation of heritage buildings' sustainability. BIM modeling was necessary for the design of the sustainability assessment model for Heritage Buildings (SAHB). Using ArchiCAD®, energy simulations were performed for two case studies (Murabba Palace, Saudi Arabia, and Grey Nuns Building, Canada), and the developed model was validated through sensitivity analysis. Heritage buildings (HBs) are unique and must be preserved for future generations. This article focuses on a sustainability assessment model and rating scale for heritage buildings in light of the need for their conservation. Regional variations were considered in the model development to identify critical attributes whose corresponding weights were then determined by fuzzy logic. Data was collected via questionnaires completed by Saudi Arabian and Canadian experts, and Fuzzy TOPSIS was also applied to eliminate the uncertainties present when human opinions are involved. Results showed that regional variations were sufficiently addressed through the multi-level weight consideration in the proposed model. Comparing the nine identified factors that affect the sustainability of HBs, energy and indoor environmental quality were of equal weight in both case studies. This study will be helpful for the design of a globally applicable sustainability assessment model for HBs. It will also enable decision-makers to prepare maintenance plans for HBs.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-09-09
      DOI: 10.1108/SASBE-03-2021-0049
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Organizing worn-out neighborhoods with the new-urbanism approach using
           mixed methods in Rudsar, northern Iran

    • Free pre-print version: Loading...

      Authors: Reza Askarizad , Akram Dadashpour , Javad Faghirnavaz , Jinliao He , Hossein Safari
      Abstract: The vulnerability of worn-out textures in the face of natural disasters is one of the most significant challenges that have forced planners and urban managers to intervene in these structures. In this context, the new-urbanism, or the new urbanization, movement is one of the most novel approaches. This paper aims to organizing one of the worn-out neighborhoods in Rudsar, northern Iran with an approach toward the new urbanism. The procedure adopted in this research is a combination of both quantitative and qualitative practices with an applied approach. Therefore, through utilizing the analytical hierarchy process (AHP) and space syntax methods, the principles of the new urbanism are examined using the Expert Choice and Depthmap software. Subsequently, the appropriate priorities are mentioned for organizing the neighborhood with the new-urbanism approach using the building information system (BIM) and strengths, weaknesses, opportunities and threats (SWOT) techniques. The findings of this study indicate that among the main characteristics of the new urbanism, walkability is recognized as the most important factor. Afterward, the components of maintaining the traditional structure of neighborhoods and connectivity were in the second and third ranks, respectively, of importance. Accordingly, by identifying the societal potential of roads according to their spatial configuration, it is possible to boost walkability, as well as economic prosperity in these areas. The combination and correlation of the four utilized methods in this research can be adopted in the future studies as a new outlook of the mixed methods in the field of urban studies.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-09-07
      DOI: 10.1108/SASBE-03-2021-0055
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • An empirical examination of Green Star certification uptake and its
           relationship with BIM adoption in New Zealand

    • Free pre-print version: Loading...

      Authors: Dat Tien Doan , Ali GhaffarianHoseini , Nicola Naismith , Amirhosein GhaffarianHoseini , Tongrui Zhang , John Tookey
      Abstract: Green building information modelling (BIM) has been highlighted as an essential topic owing to its potential benefits. However, both Green Star and BIM are still in their earlier stages in New Zealand. This paper aims to examine and evaluate the benefits, barriers/challenges and solutions for the integration of Green Star and BIM in New Zealand. In this paper, a total of 77 responses collected from construction professionals in New Zealand using questionnaires were analysed through descriptive and statistical tests. Building performance modelling used for Green Star assessment can be implemented using BIM; this was highlighted as the most significant benefit of the integration. Whereas, the most significant barrier preventing the integration of Green Star and BIM was the fact they are two completely separate processes. Regarding the solutions for the integration, showcasing BIM-Green Star benchmark projects was considered as the most effective solution amongst a range of eight provided. The research provided insights into Green Star–BIM integration in New Zealand. By evaluating the significance of the benefits, barriers/challenges and solutions for the integration, this research could be used as a guideline for Green Star and BIM development by New Zealand Green Building Council (NZGBC), the Government and construction practitioners in New Zealand. Specifically, the results here could be valuable inputs for Green Star manuals and the New Zealand BIM handbook.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-09-07
      DOI: 10.1108/SASBE-05-2021-0093
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • The birth of intelligent passive room acoustic technology: a qualitative
           review

    • Free pre-print version: Loading...

      Authors: Megan Burfoot , Amirhosein Ghaffarianhoseini , Nicola Naismith , Ali Ghaffarianhoseini
      Abstract: Informed by acoustic design standards, the built environments are designed with single reverberation times (RTs), a trade-off between long and short RTs needed for different space functions. A range of RTs should be achievable in spaces to optimise the acoustic comfort in different aural situations. This paper proclaims a novel concept: Intelligent passive room acoustic technology (IPRAT), which achieves real-time room acoustic optimisation through the integration of passive variable acoustic technology (PVAT) and acoustic scene classification (ASC). ASC can intelligently identify changing aural situations, and PVAT can physically vary the RT. A qualitative best-evidence synthesis method is used to review the available literature on PVAT and ASC. First, it is highlighted that dynamic spaces should be designed with varying RTs. The review then exposes a gap of intelligently adjusting RT according to changing building function. A solution is found: IPRAT, which integrates PVAT and ASC to uniquely fill this literature gap. The development, functionality, benefits and challenges of IPRAT offer a holistic understanding of the state-of-the-art IPRAT, and a use case example is provided. Going forward, it is concluded that IPRAT can be prototyped and its impact on acoustic comfort can be quantified.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-08-20
      DOI: 10.1108/SASBE-06-2021-0096
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Thermal performance of retrofitted secondary glazed windows in residential
           buildings – two cases from Australia

    • Free pre-print version: Loading...

      Authors: Mehmet Börühan Bulut , Sara Wilkinson , Aila Khan , Xiao-Hua Jin , Chyi Lin Lee
      Abstract: This study presents the results of empirical measurements of the thermal performance of retrofitted secondary glazed windows, involving installation of an additional windowpane, in a residential context in Australia. In situ temperature measurements were collected from the surfaces of retrofitted secondary glazed windows in two residential buildings in the Australian Capital Territory. The heat loss savings and subsequently the electricity savings were calculated based on these temperature measurements. Heat loss reductions of up to 60.8% and electricity savings of up to 9.96% could be achieved by retrofitting single glazed windows with secondary glazing. The findings suggest that the thermal performance of retrofitted secondary glazed windows is comparable to double glazed windows. Multiple glazed windows provide better energy efficiency, thermal and acoustic performance compared to single glazed windows. It is estimated, however, that 85% Australian buildings still have single glazed windows. Secondary glazing has emerged as a cost-efficient and easier-to-install alternative to double glazed windows. The results of this research can contribute to a wider market uptake of secondary glazed windows in Australia by showing that they have similar thermal performance to double glazed windows. This research is a first attempt to empirically measure the thermal performance of retrofitted secondary glazed windows with an additional windowpane in a residential setting in Australia. Secondary glazing is the provision of an additional windowpane to the original single glazed window. Previous studies in Australia have focused on performance of double glazed windows.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-08-13
      DOI: 10.1108/SASBE-03-2021-0050
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Enablers of incorporating indoor environmental quality (IEQ) principles
           into buildings

    • Free pre-print version: Loading...

      Authors: Aba Essanowa Afful , Joshua Ayarkwa , Godwin Kojo Kumi Acquah , Dickson Osei-Asibey
      Abstract: The aim of this study was to identify these enablers in literature and subsume them under broad categories for the development of a framework showing the interrelationships among the enablers. Fifty-four (54) relevant articles were desk reviewed from different construction peer-reviewed journals and published conference proceedings to identify 20 core enablers of incorporating indoor environmental quality (IEQ) into building designs. The identified enablers include improved occupants' health, well-being and satisfaction, environmental conservation, high return on investments and co-operative methods of design and construction management among others. To better understand the enablers identified, they were classified into seven main interconnected categories: economic enablers, environmental enablers, occupant and end-user enablers, process enablers, corporate image, culture and vision enablers, client-related enablers and external enablers. The interconnectedness brought to the fore a subtler appreciation of the drivers of IEQ, which could help expand current knowledge outside the narrow scope of isolated drivers. The fact that the papers selected in this study are not limited geographically underscores the wide applicability of the findings to the global construction industry. Understanding that the enablers will enhance the adoption and design of quality indoor environments, help in building the capacity of consultants to adopt the design of quality IEs and reduce the impact of construction on the environment. These identified enablers are not limited geographically and thus could promote the design of quality indoor environments globally, particularly in green building design. To the global construction community, this review presents a list of enablers that would expedite the adoption of principles of IEQ designs in buildings thus taking the global construction industry one more step towards sustainable built forms. Promoting the identified enablers would ultimately steer stakeholders to design and build better indoor environments. The fact that the papers selected in this study are not limited geographically underscores the wide applicability of the findings to the global construction industry.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-08-11
      DOI: 10.1108/SASBE-04-2021-0077
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Evaluation of occupant's adaptive thermal comfort behaviour in naturally
           ventilated courtyard houses

    • Free pre-print version: Loading...

      Authors: Peiman Pilechiha , Alireza Norouziasas , Hoorieh Ghorbani Naeini , Kasmir Jolma
      Abstract: In vernacular buildings, many climatic and passive solutions have been used to create indoor thermal comfort. Seasonal occupant movement is an example of a traditional response to increasing thermal comfort. This article investigates the influence of these user behaviours on thermal comfort in courtyard houses. Parametric models of three different scenarios of courtyard houses are simulated. The courtyard houses are located in Shiraz, Iran, and share the same orientation and construction materials. To enhance the accuracy of the study, the indoor adaptive thermal comfort (ATC) analysis is performed with three different window-to-wall ratios (WWR) of 25, 50 and 75%. The ACT analysis is performed on an hourly basis for summer and winter scenarios. The results demonstrate that the indoor ATC is 8.3% higher in winter than in the summer in the seasonal zones. During the summer, the amount of ATC is relatively sustained in all zones. Unlike common beliefs, seasonal movement can enhance the ATC, especially during winter, specifically in the northern part of the courtyard. In northern zones, the seasonal movement of occupants improves the indoor ATC from 10.1 to 23.7%, and in southern zones, the improvement is from 2.2 to 4.8%. This research presents a new numerical investigation into occupants' seasonal movements in courtyard houses during summer and winter. It provides a precise pattern to show how much this seasonal movement can affect the habitant's ATC.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-07-29
      DOI: 10.1108/SASBE-02-2021-0020
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Digital transformation as a strategy to reach sustainability

    • Free pre-print version: Loading...

      Authors: Ana Maria Gomez-Trujillo , Maria Alejandra Gonzalez-Perez
      Abstract: This paper aims to summarize previous research findings on the mutual relation between digital transformation and sustainability at a firm-level. Up to date, there is a gap in the literature linking both concepts and a generalized call for more studies. This research uses a systematic literature review of 89 published studies. After detailed content analysis filters, the authors used 75. The authors present the results following the “Six W” guidelines for systematic literature reviews. Findings reveal that it is possible to suggest a research framework that considers digital transformation as a driver and a predecessor of sustainability. To survive the digital revolution, companies need to enhance their digital capabilities and balance their economic, environmental and social impacts. The precision of the equation used to search manuscripts might have excluded some critical studies that analyze both topics with different connotations beyond merely “Digital transformation” and “Sustainability.” Moreover, the heterogeneity of the findings makes it difficult to classify the findings in a specific context. The present paper serves as a base to understand the implications of digital transformation on sustainable development for businesses and societies.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-07-23
      DOI: 10.1108/SASBE-01-2021-0011
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Intrinsic mode choice determinants based on a descriptive analysis of the
           perceptions of Abuja commuters: towards refocusing the societal mind-set
           on environmentally sustainable modes choice

    • Free pre-print version: Loading...

      Authors: Nunyi Vachaku Blamah , Hangwelani Magidimisha-Chipungu , Matthew Dayomi , Ayobami Abayomi Popoola
      Abstract: This paper sought to uncover the intrinsic determinants of the choice of transport modes in Nigeria's capital city, Abuja, based on commuters' perceptions on different modes of transport. The ultimate goal of the study was to come up with suitable multifaceted measures to deter private car usage, while refocusing society's mind-set towards alternative forms of transport, thereby keying into some transport-related sustainable development goals (SDG) goals. The study adopted qualitative methods: 320 commuters were surveyed at bus stops and car parks around the city, and respondents were identified using multistage sampling, aided by purposive/convenience sampling, and this number was reached by saturation of themes. Focus group discussions were held with eight screened public officials from relevant (transportation and environment related) agencies/unions in the city. NVivo 10 software was used to thematically analyse the data gathered from a relativist and an interpretive stand point. The study found transport mode choice to be intrinsically more motivated by socio-economic forces serving as a basis for other socio-psychological factors. Multifaceted measures, including spatial, socio-economic, environmental and public relation measures, were found suitable to break car-use motives in the study area towards adopting alternative modes of transport, thereby achieving some transport-related SDG targets. The study was unique as it looked at the intrinsic mode choice determinants from a Sub-Saharan African capital city perspective and provided suitable multifaceted best practiced measures that deemphasised car use while emphasising alternative modes, thereby shifting commuters' mind-set towards environmentally sustainable modes of transport.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-07-23
      DOI: 10.1108/SASBE-03-2021-0041
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • A generative design approach for modular construction in congested urban
           areas

    • Free pre-print version: Loading...

      Authors: Yuxi Wei , Hyungjoo Choi , Zhen Lei
      Abstract: Modular construction is widely adopted and used in the construction industry to improve construction performance with respect to both efficiency and productivity. The evaluation of design options for modular construction can be iterative, and thus automation is required to develop design alternatives. This research aims to explore the potential of utilizing the generative design approach to automate modular construction for residential building structures in urban areas such as New York City. The proposed research methodology is investigated for a systematic approach to parametrize design parameters for modular construction layout design as well as incorporate design rules/parameters into modularizing design layouts in a Building Information Modeling (BIM) environment. Based on current building codes and necessary inputs by the user, the proposed approach enables providing recommendations in a generative design method and optimizes construction processes by performing analytical calculations. The generative design has been found to be efficient in generating layout designs for modular construction based on parametric design. The integration of BIM and generative design can allow industry practitioners to fast generate design layout with evaluations from constructability perspectives. This paper has proposed a new approach of incorporating generative design with BIM technologies to solve module layout generations by considering design and constructability constraints. The method can be further extended for evaluating modular construction design from manufacturability and assembly perspectives.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-07-20
      DOI: 10.1108/SASBE-04-2021-0068
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Recommended angle of a modular dynamic façade in hot-arid climate:
           daylighting and energy simulation

    • Free pre-print version: Loading...

      Authors: Seyedeh Samaneh Golzan , Mina Pouyanmehr , Hassan Sadeghi Naeini
      Abstract: The modular dynamic façade (MDF) concept could be an approach in a comfort-centric design through proper integration with energy-efficient buildings. This study focuses on obtaining and/or calculating an efficient angle of the MDF, which would lead to the optimum performance in daylight availability and energy consumption in a single south-faced official space located in the hot-arid climate of Yazd, Iran. The methodology consists of three fundamental parts: (1) based on previous related studies, a diamond-based dynamic skin façade was applied to a south-faced office building in a hot-arid climate; (2) the daylighting and energy performance of the model were simulated annually; and (3) the data obtained from the simulation were compared to reach the optimum angle of the MDF. The results showed that when the angle of the MDF openings was set at 30°, it could decrease energy consumption by 41.32% annually, while daylight simulation pointed that the space experienced the minimum possible glare at this angle. Therefore, the angle of 30° was established as the optimum angle, which could be the basis for future investment in responsive building envelopes. This angular study simultaneously assesses the daylight availability, visual comfort and energy consumption on a MDF in a hot-arid climate.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-07-20
      DOI: 10.1108/SASBE-04-2021-0075
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • What improves smart meters' implementation' A statistical
           meta-analysis on smart meters' acceptance

    • Free pre-print version: Loading...

      Authors: Jonathan Gumz , Diego Castro Fettermann
      Abstract: This article aims to compare smart meters' acceptance studies worldwide to consolidate trends and highlight factors that are not a consensus. This work performs a statistical meta-analysis, using the Hunter–Schmidt method and the UTAUT2 model, of the factors of acceptance of smart meters in the world literature. A meta-regression was also conducted to verify the moderation exercised by gender, level of education and timeline context of the articles. The main results point to hedonic motivation, performance expectancy and effort expectancy as the leading influencers for smart meter's acceptance. Meta-regression indicates that the influence is more significant among the male gender and that over the years, the social influence must gain weight in the smart meter's acceptance. Specific strategies are suggested to improve projects for the implementation of smart meters based on the obtained results. The contribution given by this work is relevant, considering it is the first meta-analysis focused on smart meters' acceptance published in the literature
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-07-19
      DOI: 10.1108/SASBE-05-2021-0080
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • The COVID-19 pandemic: the woes of small construction firms in Ghana

    • Free pre-print version: Loading...

      Authors: Christopher Amoah , Emmanuel Bamfo-Agyei , Fredrick Simpeh
      Abstract: COVID-19 came as a surprise to the global economy and devastated many sectors worldwide, including the construction sector. Small construction firms are believed to be an engine of growth in many developing countries, including Ghana; thus, their survival cannot be trivialized. This study explored the impact of the COVID-19 on the businesses of the small confirms in Ghana. A qualitative research approach was adopted for this study. Open-ended interview questions were distributed via email to 45 small construction firms (D3K3 and D4K4) purposefully selected. Thematic contents analysis was used to analyze 30 interview questions received. This study has revealed that the COVID-19 has severely affected small construction firms in Ghana. Small construction firms are struggling in their finances; their cash flow/payments for work done are severely affected; they cannot secure contracts and management site efficiently. Their worker's productivity level has dwindled, which has subsequently escalated their project cost and completion time. These effects identified are significantly affecting the survival of these small construction firms. The study included small construction operating in the Central, Western and Greater Accra regions of Ghana during the second wave of the COVID-19 pandemic. However, the findings may be applicable to construction sites outside these regions. The implication is the COVID-19 pandemic hugely impacts the small construction firm's business operations. Therefore, they must be mindful of the new norm (COVID-19) and institute strategies to help them overcome the challenges and sustain their businesses. The study gives insight into the effects of the COVID-19 on the businesses of small construction firms in Ghana and proposes strategies that they must implement to overcome their challenges and sustain their businesses.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-07-02
      DOI: 10.1108/SASBE-02-2021-0025
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • An analysis of the application areas of augmented reality technology in
           the construction industry

    • Free pre-print version: Loading...

      Authors: Ayodeji Emmanuel Oke , Victor Adetunji Arowoiya
      Abstract: The paper aims to analyze the application areas of augmented reality (AR) in the construction industry to enhance its usage level. The objectives are to assess the level of awareness of hardware and software devices of AR, examine the application areas of AR and reveal lagging areas in the construction industry. A survey of construction professionals engaged in the built environment was sent a well-structured questionnaire in the study area. The professionals involved are project managers, architects, engineers, builders and quantity surveyors. The sampling technique used in selecting those professionals was convenience sampling. Descriptive and inferential statistics were used in analyzing the retrieved data. The five most applied areas of Augmented Realities are Visualization and simulation of construction works; Project documentation; Project planning, monitoring and modification. The other two areas include on-site real-time information retrieval and health and safety measures. The findings also revealed the difference in the opinions of professionals among the variables. The results showed that there is significant difference in the opinions of the professionals regarding the application areas except one, that is automated measurement. Automated measurement has the same converging opinions of all professionals engaged in the study. The study gives deep insight into possible areas where AR can be used in construction. The awareness level of hardware and software devices of AR was revealed by showing that those devices are upcoming in their usage. The areas of application of AR in construction are in their nascent stage. When there is proper implementation of this technology it will improve management in construction, minimize health and safety issues, and enhance the efficiency of workers through visualization and simulation.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-06-28
      DOI: 10.1108/SASBE-11-2020-0162
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • A systematic mapping of BIM and digital technologies for architectural
           heritage

    • Free pre-print version: Loading...

      Authors: Lukman E. Mansuri , D.A. Patel , Chika Udeaja , Busisiwe Chikomborero Ncube Makore , Claudia Trillo , Kwasi Gyau Baffour Awuah , Kumar Neeraj Jha
      Abstract: Across the architecture, engineering and construction industry, the application of building information modelling (BIM) as a digital technology for architectural heritage is becoming increasingly relevant. However, scholarly research on the application of BIM for architectural heritage is still in its infancy stage and the research gaps and future directions of this research area are still unclear. This paper therefore aims to fill this gap by using a systematic and robust review using a mixed-method approach to show the gaps of research for BIM and architectural heritage and point to new directions for future works. The study includes a quantitative scientometric analysis and mapping and a qualitative study. A total of 354 articles related to BIM and architectural heritage were analysed using a combination of quantitative and qualitative tools. The qualitative study consists of a systematic literature review supported by data collected from stakeholder and training workshops on digital technologies and BIM for heritage. Findings from this study reveal the gaps in the field of heritage and BIM research according to retrieved articles from different countries and journals. Furthermore, emerging domains for future research were identified and these included: as-built modelling and 3D reconstruction; conservation, preservation and management; documentation; maintenance and restoration; virtual technology and simulation. The common research challenges were identified as an integrated outcome of the findings revealed from the scientometric mapping and qualitative review and resulted in key BIM and heritage research priority recommendations relevant to researchers within this field.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-06-14
      DOI: 10.1108/SASBE-11-2020-0171
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Indoor PM concentrations of pre-schools; determining the effective factors
           and model for prediction

    • Free pre-print version: Loading...

      Authors: Yasser Baharfar , Mahmoud Mohammadyan , Faramarz Moattar , Parvin Nassiri , Mohammad Hassan Behzadi
      Abstract: This paper aims to present the most influential factors on classroom indoor PM2.5 (Particulate Matter 
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-06-11
      DOI: 10.1108/SASBE-12-2020-0183
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • A feedforward neural network for drone accident prediction from
           physiological signals

    • Free pre-print version: Loading...

      Authors: Md Nazmus Sakib , Theodora Chaspari , Amir H. Behzadan
      Abstract: As drones are rapidly transforming tasks such as mapping and surveying, safety inspection and progress monitoring, human operators continue to play a critical role in ensuring safe drone missions in compliance with safety regulations and standard operating procedures. Research shows that operator's stress and fatigue are leading causes of drone accidents. Building upon the authors’ past work, this study presents a systematic approach to predicting impending drone accidents using data that capture the drone operator's physiological state preceding the accident. The authors collect physiological data from 25 participants in real-world and virtual reality flight experiments to design a feedforward neural network (FNN) with back propagation. Four time series signals, namely electrodermal activity (EDA), skin temperature (ST), electrocardiogram (ECG) and heart rate (HR), are selected, filtered for noise and used to extract 92 time- and frequency-domain features. The FNN is trained with data from a window of length t = 3…8 s to predict accidents in the next p = 3…8 s. Analysis of model performance in all 36 combinations of analysis window (t) and prediction horizon (p) combinations reveals that the FNN trained with 8 s of physiological signal (i.e. t = 8) to predict drone accidents in the next 6 s (i.e. p = 6) achieved the highest F1-score of 0.81 and AP of 0.71 after feature selection and data balancing. The safety and integrity of collaborative human–machine systems (e.g. remotely operated drones) rely on not only the attributes of the human operator or the machinery but also how one perceives the other and adopts to the evolving nature of the operational environment. This study is a first systematic attempt at objective prediction of potential drone accident events from operator's physiological data in (near-) real time. Findings will lay the foundation for creating automated intervention systems for drone operations, ultimately leading to safer jobsites.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-06-09
      DOI: 10.1108/SASBE-12-2020-0181
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Assessing the “clerk of works” role in delivering quality affordable
           housing: a UK case study

    • Free pre-print version: Loading...

      Authors: Bradley Hughes , David J. Edwards , Igor Martek , Nicholas Chileshe , Wellington Didibhuku Thwala
      Abstract: A mixed philosophies epistemological design with inductive reasoning was adopted to develop new theoretical insights into the phenomena under investigation. First, interpretivism was employed to contextualise the prevailing body of knowledge and source questions (and prompts) to be posed to practitioners. Second, a case study strategy (augmented by participant action research) was adopted to measure construction industry professionals' perceptions of the clerk of work's role and their impact upon both quality and safety of construction. This research conducts a case study investigation of affordable and/or social home construction and examine industry's perception of the clerk of works (CoW) and their powers and responsibilities within existing legislation to impact quality of construction. The findings illustrate that while the clerk of work's role positively impacts quality and safety of construction, it is hindered by cost and time constraints that are often prioritised. An analogy to “yield points” in materials science is then adapted to develop new theory to conceptualise the pivotal position that the CoW has in upholding quality construction. The research concludes with pragmatic recommendations (such as industry centric codes of practice) to mitigate quality and safety issues arising and signpost future academic research in this area. UK construction has been criticised for prioritising costs and profits vis-à-vis quality and safety issues, as exemplified by the Grenfell fire. This study demonstrates the need for reinstatement of the CoW role in mitigating residential housing quality decline.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-06-04
      DOI: 10.1108/SASBE-01-2021-0015
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Construction project planning and scheduling as a dynamic system: a
           content analysis of the current status, technologies and forward action

    • Free pre-print version: Loading...

      Authors: Okechukwu Bruno-Kizito Nwadigo , Nicola Naismith , Ali GhaffarianHoseini , Amirhosein GhaffarianHoseini , John Tookey
      Abstract: Dynamic planning and scheduling forms a widely adopted smart strategy for solving real-world problems in diverse business systems. This paper uses deductive content analysis to explore secondary data from previous studies in dynamic planning and scheduling to draw conclusions on its current status, forward action and research needs in construction management. We searched academic databases using planning and scheduling keywords without a periodic setting. This research collected secondary data from the database to draw an objective comparison of categories and conclusions about how the data relates to planning and scheduling to avoid the subjective responses from questionnaires and interviews. Then, applying inclusion and exclusion criteria, we selected one hundred and four articles. Finally, the study used a seven-step deductive content analysis to develop the categorisation matrix and sub-themes for describing the dynamic planning and scheduling categories. We used deductive analysis because of the secondary data and categories comparison. Using the event types represented in a quadrant mapping, we delve into where, when, application and benefits of the classes. The content analysis showed that all the accounts and descriptions of dynamic planning and scheduling are identifiable in an extensive research database. The content analysis reveals the need for multi-hybrid (4D BIM-Agent based-discrete event-discrete rate-system dynamics) simulation modelling and optimisation method for proffering solutions to scheduling and planning problems, its current status, tools and obstacles. This research reveals the deductive content analysis talent in construction research. It also draws direction, focuses and raises a question on dynamic planning and scheduling research concerning the five-integrated model, an opportunity for their integration, models combined attributes and insight into its solution viability in construction.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-06-01
      DOI: 10.1108/SASBE-02-2021-0022
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Factors influencing households' intention to adopt solar energy solutions
           in Zambia: insights from the theory of planned behaviour

    • Free pre-print version: Loading...

      Authors: Sambo Zulu , Ephraim Zulu , Mwansa Chabala
      Abstract: This study examined the factors that influence households’ intention to adopt solar energy solutions in Zambia. This, in view of low adoption rates of solar energy solutions even in the wake of a widespread electricity power generation deficit across sub-Sahara Africa (SSA) has plagued the region with daily electricity load shedding lasting several hours at a time. Given the vast potential for solar energy generation in the region, solar energy solutions have become an attractive option to grid-based electricity, and many households have intentions of adopting these solutions. Through the lens of the theory of planned behaviour (TPB), the study surveyed adult household members in Zambia who contributed towards the household’s income. The participants were selected using the snowballing technique, which yielded a sample of 961 respondents. The results were analysed using structural equation modelling. The results show that attitude, trust, benefits and subjective norms influence the intention to adopt solar energy solutions. Trust and benefits also influence the intention to adopt solar energy solutions indirectly through attitude. Therefore, measures aimed at increasing the adoption of solar energy solutions should focus on improving the attitude, perceived benefits, trust in the solutions and consider subjective norms. The findings add to the understanding of the factors that influence the intention to adopt solar energy solutions in Zambia. Therefore, the findings can be used to inform measures aimed at improving solar energy uptake in Zambia. The study also reports on the previously unreported mediating role of attitude towards solar energy solution on the associations between perceived benefits and trust with solar energy solutions adoption intention.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-05-28
      DOI: 10.1108/SASBE-01-2021-0008
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • DEMATEL method of analysing the factors influencing the decision to adopt
           virtual reality technology by real estate firms in Lagos property market

    • Free pre-print version: Loading...

      Authors: Ayodele Samuel Adegoke , Timothy Tunde Oladokun , Timothy Oluwafemi Ayodele , Samson Efuwape Agbato , Ahmed Ademola Jinadu
      Abstract: The study analysed the factors influencing real estate firms' (REFs) decision to adopt virtual reality (VR) technology using the Decision-Making Trial and Evaluation Laboratory (DEMATEL) method. This was done to enhance the practice of real estate agency in Nigeria. Data were elicited from eight real estate experts. These experts were heads of the agency department of firms that had been in existence for a minimum of five years in the Lagos property market. The data analysed in this study were collected with the aid of a questionnaire. The result revealed that use intention was influenced by performance expectancy, effort expectancy, social influence, facilitating conditions, hedonic motivation, price value and UB. Also, facilitating conditions, habit and use intention did not influence use behaviour. Overall, six constructs, which include price value (Ri − Cj value = 0.1284), use behaviour (Ri − Cj value = 0.0666), social influence (Ri − Cj value = 0.0583), facilitating conditions (Ri − Cj value = 0.0323), performance expectancy (Ri − Cj value = 0.0196) and effort expectancy (Ri − Cj value = 0.0116), were significant predictors of the factors influencing the decision of REFs to adopt VR. Of these constructs, the Ri − Cj values indicated that price value had the highest causative influence. The result of this study will bring REFs to the consciousness of the factors that could affect their adoption of VR technology. This study will also assist the Nigerian Institution of Estate Surveyors and Valuers in appropriately enlightening REFs on the integration of VR technology into the agency practice especially at this time when all health protocols and guidelines need to be observed to help flatten the curve of the Covid-19 pandemic. This study is the first to have an insight into the analysis of the factors influencing REFs' decision to adopt VR technology using the DEMATEL method.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-05-28
      DOI: 10.1108/SASBE-09-2020-0135
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Environmental performance indicators for assessing sustainability of
           projects in the Ghanaian construction industry

    • Free pre-print version: Loading...

      Authors: Kofi Agyekum , Seth Yeboah Botchway , Emmanuel Adinyira , Alex Opoku
      Abstract: Recent reports based on the sustainable development goals (SDGs) have revealed that no country is in line with achieving the targets of the 2030 Agenda for sustainable development, with the slowest progress being witnessed mainly on goals that are focused on the environment. This study examines environmental performance indicators for assessing the sustainability of building projects. 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 ten environmental sustainability indicators. One hundred and sixty-seven questionnaire responses based upon these indicators from the Ghanaian construction industry were received. Data were coded with SPSS v22, analysed descriptively, and via inferential analysis. These data were then validated through semi-structured interviews with six interviewees who are fellows of their respective professional bodies, a senior academic (professor in construction project delivery) and a government official. Data obtained from the semi-structured validation interviews were analysed through the side-by-side comparison of the qualitative data with the quantitative data. The findings from the study suggest that all the indicators were important in assessing building projects' environmental sustainability across the entire life cycle. Key among the identified indicators is the effects of the project on “water quality, air quality, energy use and conservation, and environmental compliance and management”. The interviewees further agreed to and confirmed the importance of these identified indicators for assessing the environmental sustainability of building projects in Ghana. Compared to existing studies, this study adopts the exploratory sequential design to identify and examine the critical indicators in assessing the environmental sustainability across the entire lifecycle of building projects in a typical developing country setting, i.e. Ghana. It reveals areas of prime concern in the drive to place the local construction industry on a trajectory towards achieving environmental sustainability.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-05-28
      DOI: 10.1108/SASBE-11-2020-0161
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Smarter real estate marketing using virtual reality to influence potential
           homebuyers' emotions and purchase intention

    • Free pre-print version: Loading...

      Authors: Athira Azmi , Rahinah Ibrahim , Maszura Abdul Ghafar , Ali Rashidi
      Abstract: This paper aims to investigate the potentials of virtual reality (VR) for residential real estate marketing to influence house purchase intention. Based on the relevant literature in consumer behaviour, this study hypothesised the relationships between atmosphere with pleasure and arousal emotions and the subsequent influence of emotions towards house purchase intention in a virtual environment. A within-subjects experimental design was conducted with 60 real potential homebuyers to test the hypotheses. Data were analysed using paired samples t-test and partial least squares-structural equation modelling (PLS-SEM). Results revealed that there is a significant difference in the atmosphere and house purchase intention between real and virtual environments. On the other hand, pleasure and arousal emotions evoked in real and virtual environments showed no significant difference. The results show that the atmosphere significantly affects pleasure and arousal, where pleasure, in turn, has a significant effect on purchase intention, and arousal showed an insignificant effect on purchase intention in the virtual environment. Due to budget limitation, this study was constrained to the use of HTC Vive as the VR equipment and evaluation of only one type of housing design. This study contributes to facilitating the revitalisation of real estate marketing with the integration of VR by providing notable empirical results and recommendations based on the research findings. This study extends the current knowledge from the stimulus-organism-response framework for a smart real estate marketing strategy using VR.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-05-25
      DOI: 10.1108/SASBE-03-2021-0056
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Digital twin-based progress monitoring management model through reality
           capture to extended reality technologies (DRX)

         This is an Open Access Article Open Access Article

    • Free pre-print version: Loading...

      Authors: Sepehr Alizadehsalehi , Ibrahim Yitmen
      Abstract: The purpose of this research is to develop a generic framework of a digital twin (DT)-based automated construction progress monitoring through reality capture to extended reality (RC-to-XR). IDEF0 data modeling method has been designed to establish an integration of reality capturing technologies by using BIM, DTs and XR for automated construction progress monitoring. Structural equation modeling (SEM) method has been used to test the proposed hypotheses and develop the skill model to examine the reliability, validity and contribution of the framework to understand the DRX model's effectiveness if implemented in real practice. The research findings validate the positive impact and importance of utilizing technology integration in a logical framework such as DRX, which provides trustable, real-time, transparent and digital construction progress monitoring. DRX system captures accurate, real-time and comprehensive data at construction stage, analyses data and information precisely and quickly, visualizes information and reports in a real scale environment, facilitates information flows and communication, learns from itself, historical data and accessible online data to predict future actions, provides semantic and digitalize construction information with analytical capabilities and optimizes decision-making process. The research presents a framework of an automated construction progress monitoring system that integrates BIM, various reality capturing technologies, DT and XR technologies (VR, AR and MR), arraying the steps on how these technologies work collaboratively to create, capture, generate, analyze, manage and visualize construction progress data, information and reports.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-04-30
      DOI: 10.1108/SASBE-01-2021-0016
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Building information model visualisation in augmented reality

    • Free pre-print version: Loading...

      Authors: Vishak Dudhee , Vladimir Vukovic
      Abstract: The possibility of integrating building information in an augmented reality (AR) environment provides an effective solution to all phases of a building's lifecycle. This paper explores the integration of building information modelling (BIM) and AR to effectively visualise building information models in an AR environment and evaluates the currently available AR tools. A BIM model of a selected office room was created and superimposed to the actual physical space using two different AR devices and four different AR applications. The superimposing techniques, accuracy and the level of information that can be visualised were then investigated by performing a walk-through analysis. From the investigation, it can be concluded that model positioning can be inaccurate depending on the superimposing method used and the AR device. Moreover, using the currently available techniques, only static building information can be superimposed and visualised in AR, showing a need to integrate data from Internet of Things (IoT) sensors into the current BIM-AR processes to allow visualisation of accurate and high-quality operational building information. A practical process and method for visualising and superimposing BIM models in an AR environment have been described. Recommendations to improve superimposing accuracy are provided. The assessment of type, quality and level of detail that can be visualised indicates the areas that need improvement to increase the effectiveness of building information's visualisation in AR.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-04-30
      DOI: 10.1108/SASBE-02-2021-0021
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Dimensions of cost misperceptions obstructing the adoption of sustainable
           buildings

    • Free pre-print version: Loading...

      Authors: Samuel Ekung , Isaac Odesola , Michael Oladokun
      Abstract: Across the globe, the dearth of certainty about the cost of sustainable buildings (SBs) remains a critical disincentive to their adoption. This study explored the factually incorrect knowledge about the cost of SBs and their implications on adoption. The study adopted sequenced mixed qualitative and quantitative approaches involving a literature review, Delphi study and survey. Semi-structured and structured self-study questionnaires were administered to a random sample of green building experts, researchers and registered construction professionals with deep knowledge of SB. The dataset from 254 stakeholders was analysed for commonality, principal components and critical misperceptions using multivariate approaches. The predominant misperceptions in the study linked low adoption of SB to cost premium, portray cost premium as a property of luxury sustainable features and suggest related practices are suitable for exemplary projects only. The critical misperceptions produced various misinterpretations that inhibit the adoption of SB through the dearth of policies, increased complexities and inflation of budget to curb perceived risks. The study buttressed the imperative to improve cost information, knowledge, skills and stakeholders' risk perceptions to increase SB adoption. The results provide insight into the regional misperceptions and knowledge gaps that could explain the low adoption of SB in a typical emerging green market. The study showed that the prevalent knowledge about the cost of SB among construction stakeholders are unsupported beliefs and directs attention to emerging issues critical to SBs' adoption in emerging markets.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-04-29
      DOI: 10.1108/SASBE-10-2020-0160
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Recognition of workers’ actions from time-series signal images using
           deep convolutional neural network

    • Free pre-print version: Loading...

      Authors: Omobolanle Ruth Ogunseiju , Johnson Olayiwola , Abiola Abosede Akanmu , Chukwuma Nnaji
      Abstract: Construction action recognition is essential to efficiently manage productivity, health and safety risks. These can be achieved by tracking and monitoring construction work. This study aims to examine the performance of a variant of deep convolutional neural networks (CNNs) for recognizing actions of construction workers from images of signals of time-series data. This paper adopts Inception v1 to classify actions involved in carpentry and painting activities from images of motion data. Augmented time-series data from wearable sensors attached to worker's lower arms are converted to signal images to train an Inception v1 network. Performance of Inception v1 is compared with the highest performing supervised learning classifier, k-nearest neighbor (KNN). Results show that the performance of Inception v1 network improved when trained with signal images of the augmented data but at a high computational cost. Inception v1 network and KNN achieved an accuracy of 95.2% and 99.8%, respectively when trained with 50-fold augmented carpentry dataset. The accuracy of Inception v1 and KNN with 10-fold painting augmented dataset is 95.3% and 97.1%, respectively. Only acceleration data of the lower arm of the two trades were used for action recognition. Each signal image comprises 20 datasets. Little has been reported on recognizing construction workers' actions from signal images. This study adds value to the existing literature, in particular by providing insights into the extent to which a deep CNN can classify subtasks from patterns in signal images compared to a traditional best performing shallow network.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-04-29
      DOI: 10.1108/SASBE-11-2020-0170
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Contractors' adaptation to environmentally sustainable construction: a
           micro-level implementation framework

    • Free pre-print version: Loading...

      Authors: Sarfo Mensah , Gabriel Nani , Joshua Ayarkwa
      Abstract: There is low adoption rate of existing environmentally sustainable construction frameworks. Contractors have dwindled capability to adapt to environmentally sustainable construction (ESC) towards achievement of SDGs. The aim of this paper is to develop a framework that leverages both theoretical and practical aspects of sustainable construction to enable contractors' adaptation to ESC at the micro level. Due to the social constructivism orientation of the objectives of this research, abductive approach and qualitative research strategy were adopted. Data were obtained through interviews and validation focus group discussion. Content analysis and thematic template analyses techniques were employed to conduct qualitative data analyses. There are peculiar ESC barriers that need to be overcome by contractors in the study area. Legislative and financing efforts of stakeholders are key contractors' ESC adaptation drivers. Contractors in less affluent societies, such as Ghana, require high resilience, dense and centralized social network structures and isomorphic and coercive drivers to be able to adapt to ESC. The scope of this research is limited to the data gathered from large construction firms in Ghana, a developing country in the sub-Saharan region. This is one of the first papers that provide guidelines on developing capability of contractors in a developing country to adapt to ESC. The paper addresses the challenge in the ecological modernization theory by adducing empirical evidence to prescribe guidelines on how contractors can increase rate of efficiency through collaborative strategies that engender ESC.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-04-29
      DOI: 10.1108/SASBE-11-2020-0174
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Stakeholder relationships in off-site construction: a systematic
           literature review

    • Free pre-print version: Loading...

      Authors: Bao Ngoc Nguyen , Kerry London , Peng Zhang
      Abstract: This paper aims to report a comprehensive analysis of literature on stakeholder relationships towards identifying patterns of relationships within the off-site construction context. Key scholarly databases were accessed and after a filtering process, 74 relevant papers were retrieved for analysis. The papers were analysed using qualitative content analysis and scientometric techniques through the application of software Leximancer and VOSviewer. Research synthesis methods used in the present study generate compatible results. Through text mining analysis, the key themes identified in the off-site construction stakeholder relationships literature included “collaboration”, “building information modelling”, “social network analysis”, supply chain. As a finding by scientometric analysis, collaboration, BIM, supply chain management, housing and social network analysis were the most frequently entered keywords context of off-site construction. Regarding authorship pattern, the whole network of collaboration was fragmented into multiple isolated clusters, implying that the authors had tendency to cooperate in small groups. The paper can bring together an important area of research not previously studied in detail. It will primarily assist academics in the first instance; however, the research leads to important findings that will ultimately assist policymakers and practitioners better understand factors affecting stakeholder relationships and in particular network thinking and collaborative mind-sets. The review contributes a needed systematic and theoretical foundation for future stakeholder relationship studies and practices in off-site construction sector. It provides the basis for future studies and is a seminal analysis of stakeholder management and off-site construction. The scientometric methodology offers scholars a different approach to analysing and visualising literature reviews.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-04-06
      DOI: 10.1108/SASBE-11-2020-0169
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • On the hybridization of pre-trained deep learning and differential
           evolution algorithms for semantic crack detection and recognition in
           ensemble of infrastructures

    • Free pre-print version: Loading...

      Authors: Eslam Mohammed Abdelkader
      Abstract: Cracks on surface are often identified as one of the early indications of damage and possible future catastrophic structural failure. Thus, detection of cracks is vital for the timely inspection, health diagnosis and maintenance of infrastructures. However, conventional visual inspection-based methods are criticized for being subjective, greatly affected by inspector's expertise, labor-intensive and time-consuming. This paper proposes a novel self-adaptive-based method for automated and semantic crack detection and recognition in various infrastructures using computer vision technologies. The developed method is envisioned on three main models that are structured to circumvent the shortcomings of visual inspection in detection of cracks in walls, pavement and deck. The first model deploys modified visual geometry group network (VGG19) for extraction of global contextual and local deep learning features in an attempt to alleviate the drawbacks of hand-crafted features. The second model is conceptualized on the integration of K-nearest neighbors (KNN) and differential evolution (DE) algorithm for the automated optimization of its structure. The third model is designated for validating the developed method through an extensive four layers of performance evaluation and statistical comparisons. It was observed that the developed method significantly outperformed other crack and detection models. For instance, the developed wall crack detection method accomplished overall accuracy, F-measure, Kappa coefficient, area under the curve, balanced accuracy, Matthew's correlation coefficient and Youden's index of 99.62%, 99.16%, 0.998, 0.998, 99.17%, 0.989 and 0.983, respectively. Literature review lacks an efficient method which can look at crack detection and recognition of an ensemble of infrastructures. Furthermore, there is absence of systematic and detailed comparisons between crack detection and recognition models.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-03-17
      DOI: 10.1108/SASBE-01-2021-0010
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Sustainable strategy to create multisector or unisector smart economic
           hubs

    • Free pre-print version: Loading...

      Authors: Mohammed Osama Rasmy , Tarek Abdel Latif Abu Atta , Asmaa Abdelaty Mohamed Ibrahim
      Abstract: This study explores the best strategies for regional economic development to attract highly skilled populations, regardless of whether the region is a multisector or unisector economic hub. It also determines the development variables affecting the success of integrated regional economic hubs to achieve spatial equality, enhance economic productivity and attain environmental sustainability. In addition to a qualitative analysis, this study employed quantitative techniques using SPSS software. This allowed amplification of the most significant explanatory variables affecting the weaknesses and strengths of economic hubs. The results highlight approaches that can be used to achieve socio-economic sustainability in regional hubs. These include multisectors or main centralised hubs (smart economic regional capital), which provide new services to regions and act as a unidevelopment sector or as a regional, economic capital. The study analyses the effect of economic strategies and integration of natural resources and the required core services in regional economic development. Case studies of successful economic hubs are discussed. The most important services proposed in such hubs promote human development and increase the standard of living. Integration between the hubs in a region is fundamental to attracting direct investments that can benefit the local population. The results could help governments, economists and planners implement multisector developmental hubs to achieve sustainable development.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-03-16
      DOI: 10.1108/SASBE-06-2020-0084
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • An investigation on the impact of shading devices on energy consumption of
           commercial buildings in the contexts of subtropical climate

    • Free pre-print version: Loading...

      Authors: Md. Jewel Rana , Md. Rakibul Hasan , Md. Habibur Rahman Sobuz
      Abstract: Application of appropriate shading device strategies in buildings can reduce direct solar heat gain through windows as well as optimize cooling and artificial lighting load. This study investigates the impact of common shading devices such as overhangs, fins, horizontal blinds, vertical blinds and drapes on energy consumption of an office building and suggests energy efficient shading device strategies in the contexts of unique Bangladeshi subtropical monsoon climate. This research was performed through the energy simulation perspective of a prototype office building using a validated building energy simulation tool eQUEST. Around 100 simulation patterns were created considering various types of shading devices and building orientations. The simulation results were analysed comprehensively to find out energy-efficient shading device strategies. Optimum overhang and fin height is equal to half of the window height in the context of the subtropical climate of Bangladesh. South and West are the most vulnerable orientations, and application of shading devices on these two orientations shows the highest reduction of cooling load and the lowest increment of lighting load. An existing building was able to save approximately 7.05% annual energy consumption by applying the shading device strategies that were suggested by this study. The shading device strategies of this study can be incorporated into the Bangladesh National Building Code (BNBC) as new energy-efficient building design strategies because the BNBC does not have any codes or regulations regarding energy-efficient shading device. It can also be used as energy-efficient shading device strategies to other Southeast Asian countries with similar climatic contexts of Bangladesh.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-03-02
      DOI: 10.1108/SASBE-09-2020-0131
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Barriers to sustainable construction project management: the case of Iran

    • Free pre-print version: Loading...

      Authors: Ali Fathalizadeh , M. Reza Hosseini , Seyyed Saeed Vaezzadeh , David J. Edwards , Igor Martek , Salman Shooshtarian
      Abstract: The barriers to integrating sustainable practices into construction project management require extensive resource allocations to resolve. Within developing countries such as Iran (where resources are scarce), remedial strategies adopted must prioritise tackling those barriers that can be expected to yield maximum return on investment. The candidate barriers are many, and this paper aims to identify a hierarchy of barriers, providing a priority list of remedial targets. A mixed philosophical stance of interpretivism and post-positivism is adopted within a deductive approach and survey strategy. A list of 30 known barriers are identified from extant literature and used to formulate a questionnaire data collection instrument administered within the Iranian construction industry. Data collected from 176 practitioners are analysed using the relative importance index and Mann–Whitney U test to compare groups based on the participants' demographic variables. The findings challenge the common assumption that items related to market and workforce experience are major inhibitors of change. That is, economics and regulatory dependent barriers have a higher impact on the failure of a shift to sustainable practices in Iran. The most influential barriers to incorporating sustainability in construction projects are: (1) lack of understanding of the potential benefits; (2) insufficient cooperation among practitioners, research institutions and environmental organisations; and (3) a lack of a systematic approach to pursuing sustainability goals. No significant associations are detected between the affiliation of the respondents and their attitude towards the issue. Thus, a generalised approach can be applied to a broader range of organisations and construction projects in Iran. While studies on sustainability impediments at the firm or project level are ubiquitous within literature, this research identifies that the most significant barriers to sustainable project management in Iran, as an underexplored context, are those experienced at the economic and institutional level. Moreover, this novel research presents important insights into the potential effects of participants' demographic profiles on their view of the importance of identified barriers.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-02-18
      DOI: 10.1108/SASBE-09-2020-0132
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Artificial intelligence-based automatic visual inspection system for built
           heritage

    • Free pre-print version: Loading...

      Authors: Lukman E. Mansuri , D.A. Patel
      Abstract: Heritage is the latent part of a sustainable built environment. Conservation and preservation of heritage is one of the United Nations' (UN) sustainable development goals. Many social and natural factors seriously threaten heritage structures by deteriorating and damaging the original. Therefore, regular visual inspection of heritage structures is necessary for their conservation and preservation. Conventional inspection practice relies on manual inspection, which takes more time and human resources. The inspection system seeks an innovative approach that should be cheaper, faster, safer and less prone to human error than manual inspection. Therefore, this study aims to develop an automatic system of visual inspection for the built heritage. The artificial intelligence-based automatic defect detection system is developed using the faster R-CNN (faster region-based convolutional neural network) model of object detection to build an automatic visual inspection system. From the English and Dutch cemeteries of Surat (India), images of heritage structures were captured by digital camera to prepare the image data set. This image data set was used for training, validation and testing to develop the automatic defect detection model. While validating this model, its optimum detection accuracy is recorded as 91.58% to detect three types of defects: “spalling,” “exposed bricks” and “cracks.” This study develops the model of automatic web-based visual inspection systems for the heritage structures using the faster R-CNN. Then it demonstrates detection of defects of spalling, exposed bricks and cracks existing in the heritage structures. Comparison of conventional (manual) and developed automatic inspection systems reveals that the developed automatic system requires less time and staff. Therefore, the routine inspection can be faster, cheaper, safer and more accurate than the conventional inspection method. The study presented here can improve inspecting the built heritages by reducing inspection time and cost, eliminating chances of human errors and accidents and having accurate and consistent information. This study attempts to ensure the sustainability of the built heritage. For ensuring the sustainability of built heritage, this study presents the artificial intelligence-based methodology for the development of an automatic visual inspection system. The automatic web-based visual inspection system for the built heritage has not been reported in previous studies so far.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-02-02
      DOI: 10.1108/SASBE-09-2020-0139
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Barriers for implementing solar energy initiatives in Nigeria: an
           empirical study

    • Free pre-print version: Loading...

      Authors: Dahiru Abdullahi , Suresh Renukappa , Subashini Suresh , David Oloke
      Abstract: Despite the abundant renewable energy potential in the Nigeria, the power-sector stakeholder has not paid attention to the prospect of the natural resources that can be accrued when it is properly harnessed. Although a very negligible fraction of the population has invested in solar photovoltaics (PVs) for home solution, the initiative was only made public commercialised under the public-private partnership (PPP) and the objectives of the Power Sector Reform Act. 2005. It is, therefore, aimed to investigate the causes and insight of the barriers that are responsible for the slow implementation of the solar energy initiative in the Nigeria. An empirical study was performed in the Nigeria. The study was conducted qualitatively, through semi-structured face-to-face interviews of 25 participants. The interviews were recorded, transcribed, interpreted, coded, categorised into themes and analysed by content analysis. The study reveals technological, financial, political and social barriers have been the reason for slowing down solar energy development in Nigeria. While the technical barrier is a challenge to the solar energy implementation, socio-cultural issues have also been an obstacle to the implementation process. It is suggested that, the stakeholders of the initiative endeavour to proffer sustainable policies to enable public and private promoters to be able to generate and distribute electricity through solar PV and to complement the inadequate conventional electricity sources from the grids. The paper provides a richer insight into the understanding and awareness of barriers for implementing solar energy strategies in Nigeria.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-01-26
      DOI: 10.1108/SASBE-06-2020-0094
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Ecological houses of Southern Kazakhstan using renewable energy sources

    • Free pre-print version: Loading...

      Authors: Ardasher Namazbay Yussupov , Akmaral Ardasherovna Yussupova
      Abstract: The purpose of this article discusses the design of underground eco-houses using a dome structure of light construction while taking into account the historical experience of the development of the local population. This article considered the traditions of folk architecture and modern sophistication in the creation of energy-efficient eco-houses in foreign countries in the context of architecture and construction of affordable residential homes for the local population. The research presented in this paper was motivated by the need for developing agro-tourism facilities in hard-to-reach areas of the Silk Road in Southern Kazakhstan causes the construction of eco-houses built using local construction materials. Since ancient times in Southern Kazakhstan and during seasonal migrations in yurts of light construction, people have lived in mud-brick houses deep in the ground. Along with architectural and artistic solutions in building construction, great importance was attached to saving material resources, labour costs and achieving heat stability of residential buildings. In the architectural and planning solution of the eco¬-house, progressive directions of construction of agrotechnical structures using renewable energy sources are adopted. Particular importance was given to the choice of the construction site on an elevated area nearby historical monuments and a favourable season for the construction of eco-houses with considering the natural and climatic characteristics of rural areas of Southern Kazakhstan. This paper discussed the issues of insulation, ventilation and improving the eco-house microclimate comfort using local building materials. Improving the architectural and artistic expressiveness of the eco-house in terms of the tradition of folk architecture was also explicitly discussed in this paper. Tables with the justification of expediency of construction of economical eco-houses in natural and climatic conditions of Kazakhstan and Central Asia are provided. The results help to improve the energy efficiency of eco-houses in Kazakhstan by using renewable energy sources. Social benefits are associated with the use of local raw materials. Eco-houses built from traditional building materials can become accessible to a wide range of people and stimulate the development of small businesses. This may be associated with the construction of eco-houses to serve visiting tourists in remote picturesque oases, as well as the manufacture of dome structures, felt products and the preparation of reed panels and so on. The thermotechnical characteristics of the region's ground energy are given, which can significantly save the cost of heating the eco-house. Solutions for optimal insolation, ventilation of the eco-house are provided, taking into account the natural and climatic conditions of Southern Kazakhstan.
      Citation: Smart and Sustainable Built Environment
      PubDate: 2021-01-01
      DOI: 10.1108/SASBE-06-2020-0088
      Issue No: Vol. ahead-of-print , No. ahead-of-print (2021)
       
  • Smart and Sustainable Built Environment

    • Free pre-print version: Loading...

       
 
JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


Your IP address: 3.215.77.12
 
Home (Search)
API
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-