有障碍物通道内双向行人流的自组织现象

doi:10.12066/j.issn.1007-2861.2054

Abstract

Abstract:

In this paper, an extended social force model is used to investigate self-organization phenomena of bidirectional pedestrian flows in a channel with obstacles. In the model, both the static floor field and the view field have been taken into account. Then each pedestrian can determine his/her desired walking direction according to both global and local information. Case studies have been performed on different arrangements of cylinders or fences under periodic or open conditions. More self-organization flow patterns of pedestrians have been observed due to the existence of obstacles. It is found that obstacles usually trigger congestion and reduce the average velocity under periodic boundary condition. Under open boundary condition, it is found that short vertical fences mounted on the walls may reduce the travel time. Furthermore, such a setting of two fences leads to a smaller probability of the occurrence of congestion.

Key words: social force model, floor field, view field, self-organization phenomena, lane formation

CLC Number:

WU Cheng, LAN Dongkai, DONG Liyun. Self-organization phenomena of bidirectional pedestrian flows in a channel with obstacles[J]. Journal of Shanghai University（Natural Science Edition）, 2020, 26(3): 382-392.

Figures/Tables 8

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Table 1

References 40

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Self-organization phenomena of bidirectional pedestrian flows in a channel with obstacles

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