Evaluation of urban transportation system in crisis with using TRANSCAD (Case Study: City of Isfahan)

Document Type : Research Paper

Authors

1 Department of Environmental Management, North Tehran Branch, Islamic Azad University, Tehran, Iran

2 Department of Civil, Faculty of Engineering, University of Zanjan, Zanjan, Iran

3 Department of Genetics, Yadegar Emam Branch, Islamic Azad University, Shahr Rey, Iran

Abstract

Urban transportation system is one of the most important and sensitive infrastructures of urban development which requires special attention for development and operation. Urban transportation is considered as one of the biggest infrastructural challenges facing metropolises. The present study aims at evaluation of the urban transportation system using TransCAD software in the urban road networks from the perspective of crisis management at the time of evacuation. The proposed method was investigated on 15 exit roads of Isfahan transportation network. The required information such as data of Isfahan transportation network has been collected using comprehensive transportation studies in Isfahan.In this study, first, the shortest routes between origins and destinations were calculated using TransCAD software and origin-destination matrices were created based on 30% of people who intend to leave the city at times of crisis. The exits were then removed from the network and the allocation process was performed using TransCAD. The results show that, using a 30% matrix compared to the baseline scenario, the Exit No. 3657 (Na'ien Road) has the longest time spent in the entire transportation network in one hour. Also the exit roads were ranked in terms of the total length of arcs in "above capacity" and "twice the capacity" groups and it was found that the Exit No. 4639 (Zob Ahan Freeway) is in the first place. Finally, the scenarios were ranked based on the cost of facilities and traffic services in million Rials per hour (30% matrix), and the Exit No. 4639 (Zob Ahan Freeway) ranked first and Exit No. 2003 (Zeinabieh Boulevard (Habibabad Road)) ranked last.Urban transportation system is one of the most important and sensitive infrastructures of urban development which requires special attention for development and operation. Urban transportation is considered as one of the biggest infrastructural challenges facing metropolises. The present study aims at evaluation of the urban transportation system using TransCAD software in the urban road networks from the perspective of crisis management at the time of evacuation. The proposed method was investigated on 15 exit roads of Isfahan transportation network. The required information such as data of Isfahan transportation network has been collected using comprehensive transportation studies in Isfahan.

In this study, first, the shortest routes between origins and destinations were calculated using TransCAD software and origin-destination matrices were created based on 30% of people who intend to leave the city at times of crisis. The exits were then removed from the network and the allocation process was performed using TransCAD. The results show that, using a 30% matrix compared to the baseline scenario, the Exit No. 3657 (Na'ien Road) has the longest time spent in the entire transportation network in one hour. Also the exit roads were ranked in terms of the total length of arcs in "above capacity" and "twice the capacity" groups and it was found that the Exit No. 4639 (Zob Ahan Freeway) is in the first place. Finally, the scenarios were ranked based on the cost of facilities and traffic services in million Rials per hour (30% matrix), and the Exit No. 4639 (Zob Ahan Freeway) ranked first and Exit No. 2003 (Zeinabieh Boulevard (Habibabad Road)) ranked last.

Urban transportation is considered as one of the biggest infrastructural challenges facing metropolises. The present study aims at evaluation of the urban transportation system using TransCAD software in the urban road networks from the perspective of crisis management at the time of evacuation. The proposed method was investigated on 15 exit roads of Isfahan transportation network. The required information such as data of Isfahan transportation network has been collected using comprehensive transportation studies in Isfahan.

In this study, first, the shortest routes between origins and destinations were calculated using TransCAD software and origin-destination matrices were created based on 30% of people who intend to leave the city at times of crisis. The exits were then removed from the network and the allocation process was performed using TransCAD. The results show that, using a 30% matrix compared to the baseline scenario, the Exit No. 3657 (Na'ien Road) has the longest time spent in the entire transportation network in one hour. Also the exit roads were ranked in terms of the total length of arcs in "above capacity" and "twice the capacity" groups and it was found that the Exit No. 4639 (Zob Ahan Freeway) is in the first place. Finally, the scenarios were ranked based on the cost of facilities and traffic services in million Rials per hour (30% matrix), and the Exit No. 4639 (Zob Ahan Freeway) ranked first and Exit No. 2003 (Zeinabieh Boulevard (Habibabad Road)) ranked last.

Urban transportation is considered as one of the biggest infrastructural challenges facing metropolises. The present study aims at evaluation of the urban transportation system using TransCAD software in the urban road networks from the perspective of crisis management at the time of evacuation. The proposed method was investigated on 15 exit roads of Isfahan transportation network. The required information such as data of Isfahan transportation network has been collected using comprehensive transportation studies in Isfahan.

In this study, first, the shortest routes between origins and destinations were calculated using TransCAD software and origin-destination matrices were created based on 30% of people who intend to leave the city at times of crisis. The exits were then removed from the network and the allocation process was performed using TransCAD. The results show that, using a 30% matrix compared to the baseline scenario, the Exit No. 3657 (Na'ien Road) has the longest time spent in the entire transportation network in one hour. Also the exit roads were ranked in terms of the total length of arcs in "above capacity" and "twice the capacity" groups and it was found that the Exit No. 4639 (Zob Ahan Freeway) is in the first place. Finally, the scenarios were ranked based on the cost of facilities and traffic services in million Rials per hour (30% matrix), and the Exit No. 4639 (Zob Ahan Freeway) ranked first and Exit No. 2003 (Zeinabieh Boulevard (Habibabad Road)) ranked last.

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Articles in Press, Accepted Manuscript
Available Online from 23 July 2022
  • Receive Date: 01 June 2021
  • Revise Date: 13 July 2022
  • Accept Date: 23 July 2022
  • First Publish Date: 23 July 2022