Self-organized phenomena of pedestrian counter flow in a channel under periodic boundary conditions

Self-organized phenomena of pedestrian counter flow in a channel under periodic boundary conditions
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周期性边界条件下通道内行人逆流的自组织现象

DOI:
10.1088/1674-1056/21/10/108901
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发表时间:
2012-10
期刊:
影响因子:
1.7
通讯作者:
董力耘
董力耘
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
李翔;段晓茵;董力耘

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本文研究了通道中行人逆流产生的车道形成等自组织现象。将点阵气体模型进行扩展,使其在步行者视场内同时考虑相反方向的步行者的影响,即步行者倾向于跟随同一方向的领导者,避免与朝向自己的行者发生冲突。将改进后的模型用于模拟周期性边界条件下通道内的行人逆流。数值模拟结果表明,该方法能较好地再现车道形成过程,且车道形成速度较快,符合实际行人交通情况。考虑视场后,平均速度和临界密度都有一定程度的提高。
In this paper we investigate self-organized phenomena such as lane formation generated by pedestrian counter flow in a channel. The lattice gas model is extended to take the effect of walkers in the opposite direction into account simultaneously when they are in the view field of a walker, i.e., walkers tend to follow the leaders in the same direction and avoid conflicts with those walking towards them. The improved model is then used to mimic pedestrian counter flow in a channel under periodic boundary conditions. Numerical simulations show that lane formation is well reproduced, and this process is rather rapid which coincides with real pedestrian traffic. The average velocity and critical density are found to increase to some degree with the consideration of view field.
DOI: 10.1088/1674-1056/19/12/128901
发表时间: 2010-12
期刊: Chinese Physics B
影响因子: 1.7
作者:
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