Simulation of pedestrian flow at bottleneck of stairs considering group behavior

doi:10.16265/j.cnki.issn1003-3033.2022.02.005

Abstract

Abstract:

In order to investigate impacts of group behavior on pedestrian flow efficiency at the bottleneck of stairs, a movement model considering group behavior was established by using Anylogic platform based on movement data of field observation experiments in campus. Then, numerical simulation was conducted to study influence of the group's movement parameters, the stairs' geometric parameters and layout of barriers on passing time and density distribution of pedestrian flow. The results show that a large proportion of groups and group size prolong the passage time and increase duration of congestion. Chain configuration features the greatest traffic efficiency while side by side configuration has the most negative impact on passage process. Moreover, opposite impacts on passing efficiency are exerted when stair position changes for the cases with or without groups. Parallel placement of barriers can effectively reduce crowd density and improve passing efficiency of groups.

Key words: group behavior, stair bottleneck, pedestrian flow, movement configuration, passing time, stair length

CAO Shuchao, XI Xin, NI Jingyu, YAO Ming. Simulation of pedestrian flow at bottleneck of stairs considering group behavior[J]. China Safety Science Journal, 2022, 32(2): 28-33.

Figures/Tables 15

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场景	单个个体	2人群组	3人群组
上楼梯	0.83±0.21	0.75±0.14	0.73±0.12
下楼梯	0.91±0.19	0.80±0.15	0.75±0.08
通道	1.44±0.19	1.27±0.18	1.21±0.18

障碍物形式	群组人数
障碍物形式	50	100	200	300
无障碍物	157.4	246.7	419.8	598.7
障碍斜置	156.3	243.7	416.8	594.5
平行放置	152.8	238.0	412.6	586.0