Experimental study on the impact of visibility on bidirectional pedestrian flow under high and low urgency conditions

IF 3.1 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-10-11 DOI:10.1016/j.physa.2025.131042

Qing Deng , Zheng Zhou , Ziyue Xu , Yanchao Ye , Ye Xu , Quanyi Liu , Huiling Jiang , Xiaole Zhang , Lida Huang , Guoray Cai

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引用次数: 0

Abstract

Bidirectional pedestrian flow often leads to significant casualties and property damage when out of control, especially in emergencies. This study aims to investigate the characteristics of bidirectional pedestrian flow evacuation under different visibility and urgency conditions. Bidirectional pedestrian evacuation experiments are conducted under three different visibility conditions and two levels of urgency. The evacuation behavioral patterns are analyzed, including typical evacuation behaviors, evacuation speeds, and evacuation time of bidirectional pedestrian flows. Overtaking behavior, following behavior and boundary fast effect are observed during the evacuation process. As visibility decreased, pedestrian evacuation speeds also declined. The reduction in pedestrian speed due to diminished visibility was more pronounced under high-urgency conditions compared to low-urgency scenarios. Compared with non-emergency situations, in emergency situations, the moving speeds of pedestrians moving in the opposite direction are 61.90 %, 34.62 %, and 26.25 % faster when they are not wearing eye-patches, wearing an eye patch with a light transmittance of 27 %, and wearing eye-patches with a light transmittance of 16 %, respectively. The results highlight the critical impact of visibility on evacuation efficiency in emergencies. These findings provide empirical data on the influence of visibility and urgency level on emergency evacuation performance and offer valuable insights for crowd management.

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高低紧急条件下能见度对双向行人流量影响的实验研究

尤其是在紧急情况下，双向人流失控往往会造成重大人员伤亡和财产损失。本研究旨在探讨不同能见度和紧急度条件下的双向人流疏散特征。在三种不同的能见度条件和两种紧急程度下进行了双向行人疏散实验。分析了疏散行为模式，包括双向人流的典型疏散行为、疏散速度和疏散时间。在疏散过程中观察到超车行为、跟随行为和边界快速效应。随着能见度的降低，行人的疏散速度也在下降。与低紧急情况相比，在高紧急情况下，由于能见度降低而导致的行人速度降低更为明显。与非紧急情况下相比，在紧急情况下，不戴眼罩、戴透光率为27 %的眼罩和戴透光率为16 %的眼罩时，反方向行人的移动速度分别快61.90 %、34.62 %和26.25 %。研究结果强调了能见度对紧急情况下疏散效率的重要影响。这些研究结果提供了能见度和紧急程度对应急疏散绩效影响的实证数据，并为人群管理提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physica A: Statistical Mechanics and its Applications 物理-物理：综合

CiteScore

7.20

自引率

9.10%

发文量

852

审稿时长

6.6 months

期刊介绍： Physica A: Statistical Mechanics and its Applications Recognized by the European Physical Society Physica A publishes research in the field of statistical mechanics and its applications. Statistical mechanics sets out to explain the behaviour of macroscopic systems by studying the statistical properties of their microscopic constituents. Applications of the techniques of statistical mechanics are widespread, and include: applications to physical systems such as solids, liquids and gases; applications to chemical and biological systems (colloids, interfaces, complex fluids, polymers and biopolymers, cell physics); and other interdisciplinary applications to for instance biological, economical and sociological systems.