Abstract
The paper concentrates on an experimental study of the variation strategies of complex social pedestrian groups in conflict conditions. We tracked the trajectories of group members and analysed the configuration of both the complex group and its subgroups when the groups walked through a narrowing passage, passed by an obstacle or faced counter flows. We summarized the variation strategies of complex groups when they faced these conflict conditions. The effect of groups on the crowd was also studied. It was found that groups could have significant effect on self-organization of the crowd. The results in the paper could be applied in modelling pedestrian group decision and behaviour and analysing crowd dynamics.
Highlights
In our previous studies, complex social pedestrian groups with more than 5 members are proved to be composed of simple subgroups with 2-3 members [1] and the complex groups always keep regular structures in free pedestrian flow [2]
The paper concentrates on the variation strategies of complex social pedestrian groups in conflict conditions
We summarized the variation strategies of complex groups when they walked through a narrowing passage, passed by an obstacle or faced counter flows
Summary
Complex social pedestrian groups with more than 5 members are proved to be composed of simple subgroups with 2-3 members [1] and the complex groups always keep regular structures in free pedestrian flow [2]. Strategies for Variation of Groups When Passing Narrowing Passage In scene 1, the motion of 61 complex groups with 5 members were tracked. 84.8% of the groups who use strategy of keeping subgroup configuration do not reorganize They walk with a simple pattern with 2 rows and keep the whole group walking freely and the subgroup members communicating . 71.4% of the groups who use strategy of keeping the complex group configuration do not reorganize but most of them spread to a free pattern to keep enough space for walking and communication. When free pattern groups pass by the obstacle, the main strategy of splitting is to keep the configuration of the subgroups. Variation Strategies When Facing a Counter Group In scene 3, two complex groups with 5-7 members walked oppositely from in the passage and passed by each other.
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