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Simulation of pedestrian evacuation with asymmetrical pedestrian layout

Yue Hao Zhang Xu Chen Gang Shao Chun-Fu

Simulation of pedestrian evacuation with asymmetrical pedestrian layout

Yue Hao, Zhang Xu, Chen Gang, Shao Chun-Fu
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  • Received Date:  22 August 2011
  • Accepted Date:  15 November 2011
  • Published Online:  05 July 2012

Simulation of pedestrian evacuation with asymmetrical pedestrian layout

  • 1. MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China;
  • 2. Automobile Transport Command Department, Military Transportation University, Tianjin 300161, China
Fund Project:  Project supported by the National Basic Research Program of China (Grant No. 2012CB725400), the National Natural Science Foundation of China (Grant No. 11172035), the China Postdoctoral Science Foundation (Grant Nos. 20090460184, 201003036) and the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant No. 2011JBM057).

Abstract: Simulation of pedestrian evacuation from a room with multi-exit and asymmetrical pedestrian layout is presented based on an improved dynamic parameter model in this paper. The computation and the count-area of imaginary distance are improved based on the Max-Min evacuation path selection of actual and imaginary distance in order to reduce evacuation imbalance caused by the asymmetry of pedestrian layout. An imbalance coefficient is introduced to describe the asymmetry of pedestrian layout. The effects of pedestrian layout asymmetry on the evacuation time are analyzed respectively from fixed and unfixed pedestrian initialization site. The simulation results of the improved and original models are compared and analyzed, and the improved model can effectively reduce evacuation imbalance. Simulation results show that under normal evacuation condition with considerring reasonable pedestrian and jam around exits, evacuation time is hardly affected by pedestrian and exit layout and depends mainly on cognition coefficient, total width of exits and pedestrian initialization amount.

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