中国物理B ›› 2012, Vol. 21 ›› Issue (1): 18901-018901.doi: 10.1088/1674-1056/21/1/018901

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The excluded-volume effect in microscopic pedestrian simulations

郭仁拥1, 郭喜2   

  1. (1)College of Computer Science, Inner Mongolia University, Hohhot 010021, China; (2)School of Public Administration, Inner Mongolia University, Hohhot 010021, China
  • 收稿日期:2011-06-20 修回日期:2011-08-10 出版日期:2012-01-15 发布日期:2012-01-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 71001047), the Natural Science Foundation of Inner Mongolia, China (Grant No. 2010BS1001), and the Program of Higher-Level Talents of Inner Mongolia University, China (Grant

The excluded-volume effect in microscopic pedestrian simulations

Guo Ren-Yong(郭仁拥)a) and Guo Xi(郭喜)b)†   

  1. a College of Computer Science, Inner Mongolia University, Hohhot 010021, China; b School of Public Administration, Inner Mongolia University, Hohhot 010021, China
  • Received:2011-06-20 Revised:2011-08-10 Online:2012-01-15 Published:2012-01-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 71001047), the Natural Science Foundation of Inner Mongolia, China (Grant No. 2010BS1001), and the Program of Higher-Level Talents of Inner Mongolia University, China (Grant

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摘要： We propose a pedestrian position update rule, which is added to a microscopic pedestrian model to avoid pedestrian overlap. In the rule, the step size of a pedestrian moving in a selected direction at each update is in inverse proportion to the repulsive actions imposed by other pedestrians moving in a direction with an exponential rate. The positions of the pedestrians are then updated in each small time interval. In this way, a barrier between the pedestrians can be generated, and after updating their positions the pedestrians do not overlap with each other. The modified model is compared to the original model through a simulation of the evacuation process of pedestrians in a closed area. The simulation results indicate that the modified model is superior to the original model in several aspects.

关键词: pedestrian model, excluded-volume effect, discrete dynamic system

Abstract: We propose a pedestrian position update rule, which is added to a microscopic pedestrian model to avoid pedestrian overlap. In the rule, the step size of a pedestrian moving in a selected direction at each update is in inverse proportion to the repulsive actions imposed by other pedestrians moving in a direction with an exponential rate. The positions of the pedestrians are then updated in each small time interval. In this way, a barrier between the pedestrians can be generated, and after updating their positions the pedestrians do not overlap with each other. The modified model is compared to the original model through a simulation of the evacuation process of pedestrians in a closed area. The simulation results indicate that the modified model is superior to the original model in several aspects.

Key words: pedestrian model, excluded-volume effect, discrete dynamic system

中图分类号:  (Transportation)

  • 89.40.-a
45.70.-n (Granular systems) 05.65.+b (Self-organized systems)