校园行人群体微观特征与运动一致性实验研究

X. Wei, X. Mai, W. Lv, W. Song
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引用次数: 15

摘要

人群动态研究对建筑设计人员和应急指导人员具有重要意义。然而,目前的研究主要集中在孤立个体之间的相互作用,在行人动力学研究中需要考虑行人之间社会相互作用的影响。在本文中,我们对行人群体的运动进行了观察实验,并使用光流算法从视频中提取行人的运动轨迹。然后分析和讨论了群成员的运动特性,包括角度、距离、速度、群对中、步进频率和群成员的偏移角。说明群体成员具有维持群体结构的适应能力,群体速度波动较小。研究发现,在相同的场景下,群体成员的速度和步频都小于个体。还验证了组成员的运动一致性。这些实验结果将为行人群体建模提供支持。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Microscopic Character and Movement Consistency of Pedestrian Group: An Experimental Study in Campus
The research of human crowd dynamic is significant for the building designers and emergency guiders. However, current researches mainly focus on the interactions among isolated individuals, the influence of social interactions among pedestrian is needed to take into consideration in the pedestrian dynamic study. In this manuscript we carried out observed experiments of the movement of pedestrian group and used optical flow algorithm to extract pedestrian’s trajectory from the video. Then the movement characteristics of the group members were analyzed and discussed, which include the angle, the distance, the velocity, the group alignment, step frequency and the offset angle of group member. It indicates group members have adaptive ability to maintain the group structure and the velocity fluctuation of the group is small. It is found that the velocity and step frequency of group member are smaller than that of individuals under the same scenario. Movement consistency of the group members is also verified. These experimental results will be a support for modeling pedestrian group.
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