论文标题

密集的行人人群与颗粒包装:类比

Dense pedestrian crowds versus granular packings: An analogy of sorts

论文作者

Nicolas, Alexandre

论文摘要

长期以来,人群的动力学和颗粒介质的动力学之间的类比。由于人群(非常)密集的人群,它们似乎更加有前途,在这种情况下,机械约束禁止在行人动力学的决策成分上占上风。这些类比及其起源是在两个不同的设置中进行探测的,(i)流过狭窄的瓶颈的流动和(ii)入侵者通过静态组件穿越。已经报道了前一种环境的几个定量相似性,并在此处进行了讨论,而设置(ii)揭示了响应模式的差异,该响应模式与行人感知,预期和自我propel的能力相关。

Analogies between the dynamics of pedestrian crowds and granular media have long been hinted at.They seem all the more promising as the crowd is (very) dense, in which case the mechanical constraints prohibiting overlapsmight prevail over the decisional component of pedestrian dynamics. These analogies and their origins are probed in two distinct settings, (i) a flow through a narrow bottleneck and (ii) crossing of a static assembly by an intruder. Several quantitative similarities have been reported for the former setting and are discussed here, while setting (ii) reveals discrepancies in the response pattern, which areascribed to the pedestrians' ability to perceive, anticipate and self-propel.

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