The excluded-volume effect in microscopic pedestrian simulations

doi:10.1088/1674-1056/21/1/018901

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.

Keywords: pedestrian model excluded-volume effect discrete dynamic system

Received: 20 June 2011
Revised: 10 August 2011
Accepted manuscript online:

PACS:	89.40.-a	(Transportation)
	45.70.-n	(Granular systems)
	05.65.+b	(Self-organized systems)

Fund: 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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Guo Ren-Yong(郭仁拥) and Guo Xi(郭喜) The excluded-volume effect in microscopic pedestrian simulations 2012 Chin. Phys. B 21 018901

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The excluded-volume effect in microscopic pedestrian simulations

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