The Experts below are selected from a list of 213 Experts worldwide ranked by ideXlab platform
Junwei Wang - One of the best experts on this subject based on the ideXlab platform.
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A resilience assessment framework for Urban Transportation systems
International Journal of Production Research, 2020Co-Authors: Y. Gao, Junwei WangAbstract:Unexpected disruptions in an Urban Transportation system may severely damage its structure and functionality. The resilience of Urban Transportation networks, i.e. the ability to recover from destr...
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Critical Link Analysis for Urban Transportation Systems
IEEE Transactions on Intelligent Transportation Systems, 2018Co-Authors: Yaoming Zhou, Junwei WangAbstract:A fundamental and important step for safety analysis for an Urban Transportation system is to find its critical links. However, most approaches in the current literature focused on highway or intercity Transportation systems. The key characteristics of Urban Transportation systems were not considered and the concept of criticality of links was mixed up with the concept of vulnerability. This paper defines the criticality of links from two perspectives, i.e., the vulnerability and potential, based on which a novel methodology for identifying critical links in an Urban Transportation network is proposed. This novel methodology includes a ranking method and a novel mesoscopic model to examine the Urban Transportation network performance. The mesoscopic model is a novel cell transmission model, which grasps key characteristics of an Urban Transportation network, such as dynamic demand generated on links, different link lengths, and intersection flow assignment. The method is validated by a real world case from Hong Kong. The simulation results indicate that the ranking of critical links depends on particular scenarios, available resources, and both supply and demand of the system; furthermore, two paradoxes are discovered and discussed.
P Prastacos - One of the best experts on this subject based on the ideXlab platform.
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Integrating GiS Technology in Urban Transportation Planning and Modeling
Transportation Research Record - Finance Planning Programming Economic Analysis and Land Development, 1991Co-Authors: P PrastacosAbstract:The integration of Geographic Information System (GIS) technology in Urban Transportation planning and modeling is discussed. The problems faced today and the solution GISs could provide are identified. The design considerations and data needs for implementing a GIS-based Urban Transportation analysis system are analyzed and some of the commercially available GIS software is evaluated. Emphasis is placed on the use of a GIS in model-based Transportation applications rather than on other potential uses of GIS. Several applications of GIS methodology for Urban Transportation analysis are described.
Paulo Ribeiro - One of the best experts on this subject based on the ideXlab platform.
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Resilience of Urban Transportation systems. Concept, characteristics, and methods.
Journal of Transport Geography, 2020Co-Authors: Luís A. P. J. Gonçalves, Paulo RibeiroAbstract:Abstract Urban Transportation systems are susceptible to distUrbances, interruptions, and risks from natural and human causes. The concept of resilience has been introduced into Urban Transportation systems to reduce the consequences of its disruptions. Recently, this concept has attracted considerable interest from researchers from different areas of Transportation and mobility. However, several investigations about this issue were carried out under different perspectives, resulting in a more comprehensive concept, which includes adapting and transforming systems for different levels of equilibrium. This article provides a thorough and conceptual review of resilience applied to Urban Transportation systems focusing on its definitions, characteristics, and quantification methods. Based on this, the evaluation of the level of resilience of mobility subsystems is discussed to provide the basic framework for generating a tool to assess the resilience of the Urban Transportation system.
Luís A. P. J. Gonçalves - One of the best experts on this subject based on the ideXlab platform.
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Resilience of Urban Transportation systems. Concept, characteristics, and methods.
Journal of Transport Geography, 2020Co-Authors: Luís A. P. J. Gonçalves, Paulo RibeiroAbstract:Abstract Urban Transportation systems are susceptible to distUrbances, interruptions, and risks from natural and human causes. The concept of resilience has been introduced into Urban Transportation systems to reduce the consequences of its disruptions. Recently, this concept has attracted considerable interest from researchers from different areas of Transportation and mobility. However, several investigations about this issue were carried out under different perspectives, resulting in a more comprehensive concept, which includes adapting and transforming systems for different levels of equilibrium. This article provides a thorough and conceptual review of resilience applied to Urban Transportation systems focusing on its definitions, characteristics, and quantification methods. Based on this, the evaluation of the level of resilience of mobility subsystems is discussed to provide the basic framework for generating a tool to assess the resilience of the Urban Transportation system.
Zhang Shan - One of the best experts on this subject based on the ideXlab platform.
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Object-oriented Spatiotemporal Data Model of Urban Transportation Planning
Computer Engineering, 2003Co-Authors: Zhang ShanAbstract:Transportation is an important application field of GIS. Based on the background of Urban Transportation planning, the thesis presents a STDM of Urban Transportation and gives a special emphasis on spatiotemporal representation of point feature, line feature and area feature of Transportation planning basic information. Application of STDM in Urban Transportation planning is an insight into spatiotemporal application.
