吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (增刊): 138-0141.

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Dynamic traffic assignment model based on emergency evacuation passageway under the condition of disaster

YU De-xin1,2|ZHANG Mao-lei1,YANG Zhao-sheng1,2   

  1. 1.College of Transportation|Jilin University|Changchun 130022|China;2.State Key Laboratory of Automobile Dynamic Simulation, Jilin University, Changchun 130022|China
  • Received:2010-06-07 Online:2010-09-01 Published:2010-09-01

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Abstract:

A dynamic traffic assignment model was proposed based on emergency evacuation passageway under the condition of disaster. The traffic demand and the road impedance under the condition of disaster were analyzed. The precondition of model was described, the dynamic traffic assignment variational inequality model based on user optimal was established, and the algorithm of the model was designed. The example analysis showed that, evacuating the regional traffic influenced by the disaster with the model, could guarantee the smooth characteristic of the emergency evacuation passageway and the optimal of user's path, and avoid the increase of the evacuation time because of congestion.

Key words: transportation engineering, emergency evacuation passageway, dynamic traffic assignment, traffic impedance

CLC Number: 

  • U491
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