Exit selection strategy in pedestrian evacuation simulation with multi-exits

doi:10.1088/1674-1056/23/5/050512

中国物理B ›› 2014, Vol. 23 ›› Issue (5): 50512-050512.doi: 10.1088/1674-1056/23/5/050512

Exit selection strategy in pedestrian evacuation simulation with multi-exits

岳昊^a, 张滨雅^a, 邵春福^a, 邢燕^b

a MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China;
b Tianjin Bohai Urban Planning & Design Institute, Tianjin 300451, China

收稿日期:2013-06-23 修回日期:2013-10-14 出版日期:2014-05-15 发布日期:2014-05-15
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2012CB725400), the National Natural Science Foundation of China (Grant No. 11172035), the Fundamental Research Funds for the Central Universities of China (Grant No. 2013JBM046), the China Postdoctoral Science Foundation (Grant Nos. 20090460184 and 201003036), and the Talent Foundation of Beijing Jiaotong University, China (Grant No. 2012RC026).

Exit selection strategy in pedestrian evacuation simulation with multi-exits

Yue Hao (岳昊)^a, Zhang Bin-Ya (张滨雅)^a, Shao Chun-Fu (邵春福)^a, Xing Yan (邢燕)^b

a MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China;
b Tianjin Bohai Urban Planning & Design Institute, Tianjin 300451, China

Received:2013-06-23 Revised:2013-10-14 Online:2014-05-15 Published:2014-05-15
Contact: Yue Hao E-mail:yuehao@bjtu.edu.cn;hyue@bjtu.edu.cn
About author:05.50.+q; 05.20.Jj; 64.70.-p
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2012CB725400), the National Natural Science Foundation of China (Grant No. 11172035), the Fundamental Research Funds for the Central Universities of China (Grant No. 2013JBM046), the China Postdoctoral Science Foundation (Grant Nos. 20090460184 and 201003036), and the Talent Foundation of Beijing Jiaotong University, China (Grant No. 2012RC026).

摘要/Abstract

摘要： A mixed strategy of the exit selection in a pedestrian evacuation simulation with multi-exits is constructed by fusing the distance-based and time-based strategies through a cognitive coefficient, in order to reduce the evacuation imbalance caused by the asymmetry of exits or pedestrian layout, to find a critical density to distinguish whether the strategy of exit selection takes effect or not, and to analyze the exit selection results with different cognitive coefficients. The strategy of exit selection is embedded in the computation of the shortest estimated distance in a dynamic parameter model, in which the concept of a jam area layer and the procedure of step-by-step expending are introduced. Simulation results indicate the characteristics of evacuation time gradually varying against cognitive coefficient and the effectiveness of reducing evacuation imbalance caused by the asymmetry of pedestrian or exit layout. It is found that there is a critical density to distinguish whether a pedestrian jam occurs in the evacuation and whether an exit selection strategy is in effect. It is also shown that the strategy of exit selection has no effect on the evacuation process in the no-effect phase with a low density, and that evacuation time and exit selection are dependent on the cognitive coefficient and pedestrian initial density in the in-effect phase with a high density.

关键词: pedestrian evacuation, exit selection strategy, critical density, dynamic parameters

Abstract: A mixed strategy of the exit selection in a pedestrian evacuation simulation with multi-exits is constructed by fusing the distance-based and time-based strategies through a cognitive coefficient, in order to reduce the evacuation imbalance caused by the asymmetry of exits or pedestrian layout, to find a critical density to distinguish whether the strategy of exit selection takes effect or not, and to analyze the exit selection results with different cognitive coefficients. The strategy of exit selection is embedded in the computation of the shortest estimated distance in a dynamic parameter model, in which the concept of a jam area layer and the procedure of step-by-step expending are introduced. Simulation results indicate the characteristics of evacuation time gradually varying against cognitive coefficient and the effectiveness of reducing evacuation imbalance caused by the asymmetry of pedestrian or exit layout. It is found that there is a critical density to distinguish whether a pedestrian jam occurs in the evacuation and whether an exit selection strategy is in effect. It is also shown that the strategy of exit selection has no effect on the evacuation process in the no-effect phase with a low density, and that evacuation time and exit selection are dependent on the cognitive coefficient and pedestrian initial density in the in-effect phase with a high density.

Key words: pedestrian evacuation, exit selection strategy, critical density, dynamic parameters

中图分类号: (Lattice theory and statistics)

05.50.+q

05.20.Jj (Statistical mechanics of classical fluids) 64.70.-p (Specific phase transitions)

岳昊, 张滨雅, 邵春福, 邢燕. Exit selection strategy in pedestrian evacuation simulation with multi-exits[J]. 中国物理B, 2014, 23(5): 50512-050512.

Yue Hao (岳昊), Zhang Bin-Ya (张滨雅), Shao Chun-Fu (邵春福), Xing Yan (邢燕). Exit selection strategy in pedestrian evacuation simulation with multi-exits[J]. Chin. Phys. B, 2014, 23(5): 50512-050512.

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Exit selection strategy in pedestrian evacuation simulation with multi-exits

Exit selection strategy in pedestrian evacuation simulation with multi-exits

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