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Experimental study of the walking behavior of crowds mixed with slow-speed pedestrians as an introductory study of elderly-mixed evacuation crowds
Fire Safety Journal ( IF 3.1 ) Pub Date : 2020-05-01 , DOI: 10.1016/j.firesaf.2020.103041
Yoshikazu Minegishi

Abstract In conventional evacuation modeling, evacuation crowds are regarded as consisting of pedestrians with almost homogeneous walking abilities. However, there are many people who are slow-footed, especially people, and usually evacuation crowds consist of a mixture of diverse speed of pedestrians. Not only are slow-speed pedestrians themselves slow, but the mixture of slow-speed and average pedestrians whose walking behavior fit in the basic density-velocity fundamental diagrams increase the complexity of crowd behavior. This research examined the characteristics of slow-speed pedestrians mixed in an evacuation crowd through a parametric evacuation experiment. Walking behaviors on a simple straight 12.6 m path are examined. Compared with a no-slow-speed pedestrian crowd, the overall flow rate on the 1.2 m wide path decreased to 71% for the 10% slow-speed-pedestrian mixed case and to 61% for the 20% case. Analysis of the trajectories of average pedestrians in relative coordinates based on the speed of slow-speed pedestrians revealed that the behavior when passing the slow-speed pedestrians was strongly governed by the density of pedestrians and the percentage of slow-speed pedestrians. To consider the safety of diverse people today, these aspects should be well reproduced through evacuation analysis.

中文翻译:

混合慢速行人的人群步行行为实验研究作为老年人混合疏散人群的介绍性研究

摘要 在传统的疏散建模中,疏散人群被视为由步行能力几乎相同的行人组成。但是,行动迟缓的人很多,尤其是人,通常疏散人群中混杂着不同速度的行人。不仅低速行人本身很慢,而且步行行为符合基本密度-速度基本图的低速行人和普通行人的混合增加了人群行为的复杂性。本研究通过参数疏散实验检验了混入疏散人群中的慢速行人的特征。检查了一条简单的 12.6 m 直线路径上的步行行为。与无慢速行人人群相比,整体流量上 1. 2 m 宽的路径在 10% 慢速行人混合情况下减少到 71%,在 20% 情况下减少到 61%。基于慢速行人速度的相对坐标中平均行人轨迹分析表明,通过慢速行人时的行为受行人密度和低速行人百分比的强烈控制。考虑到当今不同人群的安全,这些方面应该通过疏散分析很好地再现。
更新日期:2020-05-01
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