Experimental Study of Collective Pedestrian Dynamics

C. Appert-Rolland, Julien Pettr'e, A. Olivier, W. Warren, Aymeric Duigou-Majumdar, Etienne Pinsard, Alexandre Nicolas
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引用次数: 12

Abstract

We report on two series of experiments, conducted in the frame of two different collaborations designed to study how pedestrians adapt their trajectories and velocities in groups or crowds. Strong emphasis is put on the motivations for the chosen protocols and the experimental implementation. The first series deals with pattern formation, interactions between pedestrians, and decision-making in pedestrian groups at low to medium densities. In particular, we show how pedestrians adapt their headways in single-file motion depending on the (prescribed) leader’s velocity. The second series of experiments focuses on static crowds at higher densities, a situation that can be critical in real life and in which the pedestrians’ choices of motion are strongly constrained sterically. More precisely, we study the crowd’s response to its crossing by a pedestrian or a cylindrical obstacle of 74cm in diameter. In the latter case, for a moderately dense crowd, we observe displacements that quickly decay with the minimal distance to the obstacle, over a lengthscale of the order of the meter.
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集体行人动力学实验研究
我们报告了两个系列的实验,在两个不同的合作框架下进行,旨在研究行人如何在群体或人群中适应他们的轨迹和速度。重点强调了所选择的协议和实验实现的动机。第一个系列涉及中低密度下行人群体的模式形成、行人之间的互动以及决策。特别是,我们展示了行人如何根据(规定的)引导者的速度来调整单行运动中的车头时距。第二系列实验的重点是高密度的静态人群,这种情况在现实生活中可能很关键,行人的运动选择受到强烈的空间约束。更准确地说,我们研究了行人或直径74厘米的圆柱形障碍物穿过人群时的反应。在后一种情况下,对于中等密度的人群,我们观察到位移随着距离障碍物的最小距离而迅速衰减,在米量级的长度尺度上。
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