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Publisher: Vilnius Gediminas Technical University   (Total: 18 journals)   [Sort by number of followers]

Showing 1 - 18 of 18 Journals sorted alphabetically
Aviation     Open Access   (Followers: 13)
Baltic J. of Road and Bridge Engineering     Open Access   (Followers: 1, SJR: 0.257, CiteScore: 1)
Business : Theory and Practice / Verslas : Teorija ir Praktika     Open Access   (Followers: 1, SJR: 0.193, CiteScore: 1)
Business, Management and Education     Open Access   (Followers: 19)
Coactivity : Philology, Educology / Santalka: Filologija, Edukologija     Open Access  
Coactivity: Philosophy, Communication / Santalka: Filosofija, Komunikacija     Open Access   (Followers: 1)
Creativity Studies     Open Access   (Followers: 3, SJR: 0.967, CiteScore: 1)
Engineering Structures and Technologies     Open Access   (Followers: 4)
Evolution of Science and Technology / Mokslo ir technikos raida     Open Access   (Followers: 1)
Geodesy and Cartography     Open Access   (Followers: 2, SJR: 0.156, CiteScore: 0)
Intl. J. of Strategic Property Management     Open Access   (Followers: 3, SJR: 0.344, CiteScore: 2)
J. of Business Economics and Management     Open Access   (Followers: 3, SJR: 0.361, CiteScore: 2)
J. of Civil Engineering and Management     Open Access   (Followers: 9, SJR: 0.572, CiteScore: 2)
J. of Environmental Engineering and Landscape Management     Open Access   (Followers: 8, SJR: 0.294, CiteScore: 1)
Mathematical Modelling and Analysis     Open Access   (Followers: 1, SJR: 0.336, CiteScore: 1)
Mokslas – Lietuvos ateitis / Science – Future of Lithuania     Open Access  
Technological and Economic Development of Economy     Open Access   (Followers: 5, SJR: 0.941, CiteScore: 3)
Transport     Open Access   (Followers: 15, SJR: 0.402, CiteScore: 1)
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Journal Prestige (SJR): 0.402
Citation Impact (citeScore): 1
Number of Followers: 15  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1648-4142 - ISSN (Online) 1648-3480
Published by Vilnius Gediminas Technical University Homepage  [18 journals]
  • Investigating the driver’s response time at signalized intersections

    • Authors: Pelin Çalişkanelli, Serhan Tanyel
      Pages: 380– - 380–
      Abstract: It is generally accepted that, behavioural variables may show differences in different countries, and sometimes in different regions depending on cultural and other socio-economic factors. In literature, several researchers have emphasized that performance of signalized intersections is highly related with drivers’ behaviour. However, only a few parameters can be used to reflect drivers’ behaviour in performance analysis. Start response time is used as a key parameter in calibration of analytical and simulation models. In this study, a detailed analysis is conducted on the variability of start response time with respect to parameters like those that manoeuvre type, cycle time, gender of drivers’, etc. by using data obtained from signalized intersections in İzmir, Turkey. Analysis showed that left and right turning drivers have slightly shorter start response times than all through passing vehicles. In addition, the effect of start response time on base saturation flow is discussed.
      PubDate: 2018-01-25
      DOI: 10.3846/16484142.2016.1250106
      Issue No: Vol. 33, No. 2 (2018)
  • Condition monitoring of railway track systems by using acceleration
           signals on wheelset axle-boxes

    • Authors: Andrzej Chudzikiewicz, Roman Bogacz, Mariusz Kostrzewski, Robert Konowrocki
      Pages: 555– - 555–
      Abstract: The aim of this paper is to demonstrate the possibilities of estimating the track condition using axle-boxes and car-bodies motions described by acceleration signals. In the paper, the results presented indicate the condition of tracks obtained from the preliminary investigation on the test track. Furthermore, the results from the supervised runs (on Polish Railway Lines) of Electric Multiple Unit (EMU-ED74) with the prototype of track quality monitoring system installed on-board are described. As Track Quality Indicator (TQI) algorithm, used in the mentioned prototype, a modified Karhunen–Loève transformation is used in preliminary preparation of acceleration signals. The transformation is used to extract the principal dynamics from measurement data. Obtained results are compared to other methods of evaluating the geometrical track quality, namely methods, which apply the synthetic coefficient Jsynth and five parameters of defectiveness W5. The results from the investigation showed that track condition estimation is possible with acceptable accuracy for in-service use and for defining cost-effective maintenance strategies.
      PubDate: 2018-02-22
      DOI: 10.3846/16484142.2017.1342101
      Issue No: Vol. 33, No. 2 (2018)
  • Prediction of traffic sign vandalism that obstructs critical messages to

    • Authors: Majid Khalilikhah, Kevin Heaslip
      Pages: 399 - 407
      Abstract: A critical deficiency in any one or a combination of three transportation system characteristics: the driver, roadway, or vehicle can contribute to an elevated crash risk for the motoring public. Traffic signs often convey critical information to drivers. However, traffic signs are only effective when clearly visible and legible. Traffic sign vandalism that is exclusively the results of humans causes both sign legibility and visibility to deteriorate. Transportation agencies spend a significant amount of money to repair or replace vandalized signs. This study was conducted to identify which traffic signs are more vulnerable to vandalism. To do this, a mobile-based vehicle collected data of over 97000 traffic signs managed by the Utah Department of Transportation (UDoT), US. The vandalized signs were identified by a trained operator through inspection of daytime digital images taken of each individual sign. Location data obtained from online sources combined with the traffic sign data were imported into ArcGIS to acquire localized conditions for each individual sign. According to the chi-square test results, the association between vandalism and traffic sign attributes and localized conditions, including background color, size, mount height, exposure, land cover, and road type was evident. After employing the random forests model, the most important factors in making signs vulnerable to vandalism were identified.
      PubDate: 2017-03-01
      DOI: 10.3846/16484142.2016.1252946
      Issue No: Vol. 33, No. 2 (2017)
  • Detection and analysis of hazardous locations on roads: a case study of
           the Croatian motorway A1

    • Authors: Dražen Cvitanić, Biljana Vukoje
      Pages: 418 - 428
      Abstract: The present paper describes research undertaken to identify causes underlying single-vehicle accidents (in terms of road design, driver behaviour and vehicle handling characteristics), which continuously happen in one specific section of Croatian motorway A1. The research resulted in a proposed procedure for a detection of hazardous locations on motorways and analysis of possible causes of single-vehicle accidents. The main part of the procedure involves test-rides with a vehicle equipped with devices (a ball bank indicator and a GPS data logger), which collect data on driver’s behaviour and vehicle handling characteristics (position, speed, longitudinal and lateral acceleration, heading, path radius, etc.). Despite the fact that the motorway was designed in accordance with the design guidelines, test rides performed by higher operating speeds identified two locations with a lateral acceleration change a few times higher than the design value. The collected data are then used for analysing hypotheses about the possible causes of accidents by using a vehicle dynamic model. The hypothesis that a sudden change in lateral acceleration could result in a driver’s inadequate manoeuvre like braking and cause a vehicle accident was analysed with a transient bicycle model. The results of test rides and the transient bicycle model indicate that speed, intensity of deceleration and underinflated tires significantly affect the probability of a single-vehicle accident.
      PubDate: 2017-01-16
      DOI: 10.3846/16484142.2016.1259180
      Issue No: Vol. 33, No. 2 (2017)
  • Competition or cooperation in a hub and spoke-shipping network: the case
           of the North Adriatic container terminals

    • Authors: Danijela Tuljak-Suban
      Pages: 429 - 436
      Abstract: This article examines the problem of the competition or cooperation of the container terminals in the North Adriatic hub and spoke system with respect to the leadership position of the ship owners, which defines the flow of containers. The problem is defined as a two-stage game where the shipping companies act as leaders and the container terminals are the followers. The stages of the game are defined as a multi-objective optimization problem on a graph. The proposed simulations and the results obtained could be a first step in defining a sustainable method of collabora-tion in the hub and spoke system between the ports and the ship owners. The purpose of the article is also to present a systematic examination of a hub and spoke port network based on a competition–cooperation model. The model could also be used by the shipping companies or container terminals to find an optimal strategy in the game and validate their business decisions.
      PubDate: 2017-01-16
      DOI: 10.3846/16484142.2016.1261368
      Issue No: Vol. 33, No. 2 (2017)
  • Use of high intensity reflective sheeting in lieu of external lighting of
           overhead roadway signs

    • Authors: Fan Ye, Paul J. Carlson, Mike N. Jackson
      Pages: 437– - 437–
      Abstract: Overhead guide sign lighting has been used by many agencies to improve visibility. However, the availability of newer and more efficient retroreflective materials has created a new challenge for state transportation agencies going through sign sheeting upgrade programs and considering the need for using sign lighting, as there is no existing answer regarding whether upgraded sign sheeting itself can meet drivers’ nighttime visibility demands without external sign lighting. The purpose of the paper is to investigate whether high intensity reflective sheeting can be used to replace overhead guide sign lighting. The conclusion of the study provided a guidance for agencies to adopt their current sign lighting policy. A luminance computation model is used in the paper to calculate overhead guide sign legend luminance under various situations, including different sign lighting technologies, different geometrics and overhead guide sign locations, and different amounts of sign dirt and sign aging. By comparing the calculated luminance of a specific overhead guide sign at a specific situation with the legibility luminance levels required by older drivers, sign lighting needs are assessed. In addition, a life-cycle cost spreadsheet is developed and used to calculate the cost of replacing the current sign sheeting with high reflective sheeting and the cost of installing/upgrading sign lighting. Eventually, the most cost effective approach to maintain overhead guide luminance is discussed.
      PubDate: 2017-01-16
      DOI: 10.3846/16484142.2016.1264469
      Issue No: Vol. 33, No. 2 (2017)
  • Ground-borne noise and vibration transmitted from subway networks to
           multi-storey reinforced concrete buildings

    • Authors: Konstantinos Vogiatzis, Harris Mouzakis
      Pages: 446 - 453
      Abstract: During the operation of urban subway rail transit systems, vibrations are generated that transmitted through the soil, induce vibrations in nearby buildings. The transmission of ground-borne vibrations from subway rail transit systems in a building is governed by the soil-foundation interaction, the reduction of vibration level between floors, and the amplication due to resonances of building elements. These are influenced by the type of the building, its construction materials, the foundation soil, and the frequency content of the excitation. A methodology is proposed for the determination of the sound vibration along the height of the building for a specic construction type, demonstrating how the attenuation and amplication parameters can be calculated. For this particular building type, a notable amplication of the vibration due to floor and other structural resonances was found, whereas the vibration and hence the radiated noise levels are similar from the first floor up. An overall building amplication factor is proposed, taking into account all the above mentioned transmission mechanisms.
      PubDate: 2017-09-04
      DOI: 10.3846/16484142.2017.1347895
      Issue No: Vol. 33, No. 2 (2017)
  • Ship mooring to jetties under the crosscurrent

    • Authors: Vytautas Paulauskas, Donatas Paulauskas, Birutė Plačienė, Raimondas Barzdžiukas
      Pages: 454– - 454–
      Abstract: Quay walls or jetties in some ports or certain places of the ports are located in such a way that currents act at a particular angle to quay walls or jetties. Additional forces created by currents on mooring or moored ships as well as other forces produced by the wind, waves or shallow water effect should be taken in account when designing quay walls or jetties for ship mooring operations. The article describes ship mooring under crosscurrent conditions, calculates mooring methodology, experimentally examines the received theoretical results and provides recommendations to designers and ship operators when quay walls or jetties are arranged at a particular angle to the current.
      PubDate: 2017-09-04
      DOI: 10.3846/16484142.2017.1354069
      Issue No: Vol. 33, No. 2 (2017)
  • Collision avoidance on winding roads using dedicated short-range

    • Authors: Daxin Tian, Yong Yuan, Jian Wang, Haiying Xia, Jian Wang
      Pages: 461 - 469
      Abstract: The emergence of wireless communication technologies such as Dedicated Short-Range Communication (DSRC) has promoted the evolution of collision warning from simple ranging-sensor-based systems to cooperative systems. In cooperative systems, path prediction is a promising method for reflecting a driver’s intention and estimating the future position of vehicles. In this study, a short-term trajectory-modelling method is proposed to predict vehicle motion behaviour in the cooperative vehicular environment. In addition, a collision detection algorithm for winding roads is presented based on a model for determining the minimum distance of vehicles’ future trajectories. The cooperative collision avoidance system’s performance is analysed through simulation, providing useful theoretical insights into the effects of DSRC technology on vehicle collision avoidance in a curved road environment.
      PubDate: 2017-01-16
      DOI: 10.3846/16484142.2016.1278032
      Issue No: Vol. 33, No. 2 (2017)
  • Sensitivity of street network capacity under the rain impact: case study
           of Belgrade

    • Authors: Ivan Ivanović, Jadranka Jović
      Pages: 470 - 477
      Abstract: It is generally know that adverse weather conditions cause changes in urban transportation system. Research of weather impact on the urban transportation system was additionally intensified by actualisation of climate changes problem. In urban area, precipitation may reduce the efficiency of transportation systems, since it often results in larger travel times and higher congestion levels in street networks. Therefore, it is important to examine the impact of precipitation on the urban street capacity. In accordance with climate characteristics of research area, the focus of this paper was on the rain impact. Impact of rain was analysed only in the context of transport supply, and not of transport demand. Sensitivity of the street network capacity was chosen to represent transportation system supply. It was analysed through the changes in saturation flow rate under the rain. Results of the research have shown significant sensitivity of street network capacity on the rain impact. Moreover, the rain impact was quantified by the capacity sensitivity coefficients, which were implemented in procedure of capacity calculation.
      PubDate: 2017-04-12
      DOI: 10.3846/16484142.2017.1283532
      Issue No: Vol. 33, No. 2 (2017)
  • Identification of hotspots on roads using continual variance analysis

    • Authors: Dejan Anđelković, Boris Antić, Krsto Lipovac, Ilija Tanackov
      Pages: 478– - 478–
      Abstract: This paper presents a new statistical model for the identification of dangerous locations (subsections) on roads, also known as hotspots. The model is based on continual analysis of variance. The variance parameter has the potential for the synthesis of quantity and quality, especially regarding traffic accident frequencies and the consequences of traffic accidents within subsections and the significant comparison of the produced synthesis. The sensitivity of the suggested model can be adjusted with the level of disjunction and the length of subsections. A practical application of the new model is performed using a sample of 8442 traffic accidents, of which 6079 were Property Damage Only (PDO) accidents, 2041 resulted in injuries and 322 resulted in fatalities. The sample is for the period of 2001 to 2011 and is from an ‘I class’ two lane rural state road in the Serbia with total length of 284 kilometres. The results acquired using the continual analysis of variance were compared with previous results from four HotSpot Identification Methods (HSID) that are also based on the frequency of traffic accidents.
      PubDate: 2017-04-12
      DOI: 10.3846/16484142.2017.1289479
      Issue No: Vol. 33, No. 2 (2017)
  • Generalized velocity–density model based on microscopic traffic

    • Authors: Oussama Derbel, Tamás Péter, Benjamin Mourllion, Michel Basset
      Pages: 489 - 501
      Abstract: In case of the Intelligent Driver Model (IDM) the actual Velocity–Density law V(D) applied by this dynamic system is not defined, only the dynamic behaviour of the vehicles/drivers is determined. Therefore, the logical question is whether the related investigations enhance an existing and known law or reveal a new connection. Specifically, which function class/type is enhanced by the IDM' The publication presents a model analysis, the goal of which was the exploration of a feature of the IDM, which, as yet, ‘remained hidden’. The theoretical model results are useful, this analysis important in the practice in the field of hybrid control as well. The transfer of the IDM groups through large-scale networks has special practical significance. For example, in convoys, groups of special vehicle, safety measures with delegations. In this case, the large-scale network traffic characteristics and the IDM traffic characteristics should be taken into account simultaneously. Important characteristics are the speed–density laws. In case of effective modelling of large networks macroscopic models are used, however the IDMs are microscopic. With careful modelling, we cannot be in contradiction with the application of speed–density law, where there IDM convoy passes. Therefore, in terms of practical applications, it is important to recognize what kind of speed–density law is applied by the IDM convoys in traffic. Therefore, in our case the goal was not the validation of the model, but the exploration of a further feature of the validated model. The separate validation of the model was not necessary, since many validated applications for this model have been demonstrated in practice. In our calculations, also the applied model parameter values remained in the range of the model parameters used in the literature. This paper presents a new approach for Velocity–Density Model (VDM) synthesis. It consists in modelling separately each of the density and the velocity (macroscopic parameter). From this study, safety time headway (microscopic parameter) can be identified from macroscopic data by mean of interpolation method in the developed map of velocity–density. By combining the density and the velocity models, a generalized new VDM is developed. It is shown that from this one, some literature VDMs, as well as their properties, can be derived by fixing some of its parameters.
      PubDate: 2017-04-12
      DOI: 10.3846/16484142.2017.1292950
      Issue No: Vol. 33, No. 2 (2017)
  • Selection of coal transportation mode from the open pit mine to the
           thermic power plant using Fuzzy Analytic Hierarchy Process

    • Authors: Pinar Mizrak Özfirat, Muharrem Kemal Özfirat, Tahir Malli
      Pages: 502– - 502–
      Abstract: Coal produced in open pit mines should be moved to thermic power plants for production of power. Thermic power plants require very large amounts of coal. In transportation process of this coal, both costs and technical parameters should be considered. Common alternative transportation modes in this process are belt conveyors, truck types, suspension rail conveying systems, pipelines and railways. Selection of one of these modes is influenced by transportation distance, inclination of the haulage road, amount of coal reserve, investment costs, production capacity and unit production cost of the open pit mine. In this study, advantages and disadvantages of alternative transportation modes are analysed using Fuzzy Analytic Hierarchy Process (F-AHP). The results revealed, belt conveyors and trucks transportation by are superior to others.
      PubDate: 2017-04-12
      DOI: 10.3846/16484142.2017.1295278
      Issue No: Vol. 33, No. 2 (2017)
  • Using accessibility measures in transit network design

    • Authors: Gorkem Gulhan, Huseyin Ceylan, Halim Ceylan
      Pages: 510– - 510–
      Abstract: Transit planning scenarios may lead to the different Objective Function (OF) values since each scenario has different transit travel times, frequencies and fleet sizes. Change on those variables leads to the different accessibility values for each route set. Therefore, the actual performance of a route set may be unforeseen since the accessibility values are out of evaluation criteria. This study tries to generate techniques, which handle the relation between accessibility and transportation in the scope of public transit. The accessibility measures, which have direct relation with land use and transportation, are utilized in transit route set decision. Accessibility measures have been utilized in the decision-making process of transit network design. Conventional OFs, which are used to determine the most effective route sets are combined with accessibility based OFs and the decision-making process of transit network design is strengthened. In this context, the effects of accessibility measures in decision-making process of transit network design have been represented on an 8-node example transit network. The results showed the accessibility measures could effectively improve the planners’ decision accuracy.
      PubDate: 2017-04-12
      DOI: 10.3846/16484142.2017.1295401
      Issue No: Vol. 33, No. 2 (2017)
  • Optimizing signal phase plan, green splits and lane length for isolated
           signalized intersections

    • Authors: Ronghan Yao, Hongmei Zhou, Ying-En Ge
      Pages: 520– - 520–
      Abstract: At an isolated signalized intersection, short left-turn lanes may be provided to enhance intersection capacity and level of service. The capacity of an entire intersection depends not only on the effective green time per phase and the length of each short left-turn lane but also on the selected signal phase plan. This paper enumerates 16 typical signal phase plans for a four-leg intersection with protected left-turn phases. Given the existence of short left-turn lanes and the freedom to select signal phase plans, two optimization models are formulated. Numerical examples are carried out to illustrate the application of these models and show the sensitivity of the outcomes to impact factors. The orthogonal experiments show that the primary factor is whether a short left-turn lane is added on an approach and the demand distribution is the secondary factor in determining an optimal allocation of the time-space resources of an intersection. To analyse traffic flow operations under different signal phase sequences, the simulation tests are fulfilled using VISSIM under the assumption that the components of a signal phase plan and green splits are all identical. The simulated results indicate that the signal phase sequence for a specified approach may greatly affect traffic movements at an approach, and the leading green phasing is better than the lagging one for a specified approach when the left-turn bay length is short at the approach. Finally, two variations of the developed models are recommended for use and the procedure for the model application is provided in practice.
      PubDate: 2017-04-27
      DOI: 10.3846/16484142.2017.1297327
      Issue No: Vol. 33, No. 2 (2017)
  • The influence of a quay crane sea transportation on its further

    • Authors: Maksym Starykov, Frank Van Hoorn
      Pages: 536– - 536–
      Abstract: For the last decades, fully erected container cranes have been delivered to a customer site by ships. On one hand, using this method of transportation is very attractive due to its cost and time savings. However, on the other hand, being exposed to cycling loads from the ship motions during the sea voyage, the crane structure accumulates fatigue damage. Using the accumulated fatigue damage parameter, the crane transportation could be associated with the amount of the working cycles the crane could have worked out during its normal operating at the customer site. In the presenting paper the research for the real case of a new crane voyage from China to Ukraine has been done.
      PubDate: 2017-04-12
      DOI: 10.3846/16484142.2017.1297328
      Issue No: Vol. 33, No. 2 (2017)
  • Bus arrival time prediction using mixed multi-route arrival time data at
           previous stop

    • Authors: Xuedong Hua, Wei Wang, Yinhai Wang, Min Ren
      Pages: 543– - 543–
      Abstract: The primary objective of this paper is to develop models to predict bus arrival time at a target stop using actual multi-route bus arrival time data from previous stop as inputs. In order to mix and fully utilize the multiple routes bus arrival time data, the weighted average travel time and three Forgetting Factor Functions (FFFs) – F1, F2 and F3 – are introduced. Based on different combinations of input variables, five prediction models are proposed. Three widely used algorithms, i.e. Support Vector Machine (SVM), Artificial Neutral Network (ANN) and Linear Regression (LR), are tested to find the best for arrival time prediction. Bus location data of 11 road segments from Yichun (China), covering 12 bus stops and 16 routes, are collected to evaluate the performance of the proposed approaches. The results show that the newly introduced parameters, the weighted average travel time, can significantly improve the prediction accuracy: the prediction errors reduce by around 20%. The algorithm comparison demonstrates that the SVM and ANN outperform the LR. The FFFs can also affect the performance errors: F1 is more suitable for ANN algorithm, while F3 is better for SVM and LR algorithms. Besides, the virtual road concept in this paper can slightly improve the prediction accuracy and halve the time cost of predicted arrival time calculation.
      PubDate: 2017-05-02
      DOI: 10.3846/16484142.2017.1298055
      Issue No: Vol. 33, No. 2 (2017)
  • Accelerating construction of roadway bridges using alternative techniques
           and procurement methods

    • Authors: Ossama Salem, Baris Salman, Sudipta Ghorai
      Pages: 567 - 579
      Abstract: Approximately a quarter of the bridges in the United States are classified as either functionally obsolete or structurally deficient by the United States Department of Transportation (USDOT). As such, transportation agencies are challenged to handle the increasing need of upgrades with limited resources. Accelerated Bridge Construction (ABC) can reduce the construction duration and can decrease the environmental and socio-economic impacts of repair and upgrade activities by minimizing traffic disruptions. As several states are using accelerated construction techniques, a standard guideline would be highly beneficial for these agencies in developing or improving the ABC decision-making process. As problems are often project specific, a decision tool can assist in determining the viability of ABC over traditional construction methods and in selecting appropriate construction and contracting strategies on a case-by-case basis. This paper presents findings of a recent survey with regards to utilization of ABC strategies by state Departments of Transportation (DOTs), and a decision support framework which consists of three models: (1) Analytical Hierarchy Process (AHP) based ABC vs. traditional construction decision-making model; (2) ABC alternatives selection model; and (3) procurement method and contract selection model. The paper also discusses the use of ABC in New York State and describes a New York State bridge project to validate the AHP model.
      PubDate: 2017-05-02
      DOI: 10.3846/16484142.2017.1300942
      Issue No: Vol. 33, No. 2 (2017)
  • Review of equipment of flight analysis and development of interactive
           aeronautical chart using Google Earth’s software

    • Authors: Tadas Masiulionis, Jonas Stankūnas
      Pages: 580 - 588
      Abstract: While carrying out pilot-student flight analysis, it was observed that there is a scarcity of means designed to allow fast and convenient analysis and evaluation of pilot-student flights in airspace. Most of the free navigation tools available are more adapted for on-ground navigation analysis (height and vertical speed information are not always displayed). Various software programmes can display different flight information; however, it is difficult to relate the different data parameters and compare them. Thus, the aim of the study is to resolve these problems by offering to pilots-instructors a convenient interactive aeronautical chart.
      PubDate: 2017-05-02
      DOI: 10.3846/16484142.2017.1312521
      Issue No: Vol. 33, No. 2 (2017)
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