Modeling and Simulation of Pedestrian Counter Flow on a Crosswalk
Modeling and Simulation of Pedestrian Counter Flow on a Crosswalk
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DOI：
10.1088/0256-307x/29/9/098902
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发表时间：
2012-10
影响因子：
3.5
通讯作者：
Xiang 翔 Li 李;Li-Yun 力耘 Dong 董
中科院分区：
文献类型：
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作者：
Xiang 翔 Li 李;Li-Yun 力耘 Dong 董
扩展了基于层场的行人流元胞自动机模型，使其同时考虑同向和相反方向的步行者在步行者视场内的影响，即步行者倾向于跟随同向的leader，避免与相反方向的leader发生冲突。利用改进的模型研究了开放边界条件下人行横道上的行人逆流。数值模拟结果表明，该方法能较好地再现车道形成过程，且速度较快，与实际行人交通情况吻合。研究发现，视场内相同方向和相反方向的步行者效应增强了步行者向自己偏好的方向移动的意愿，并将行人逆流分隔成统一行走方向的车道，尤其是当步行者数量足够多时。
A cellular automaton model for pedestrian flow based on floor field is extended to take the effects of those walkers in the same and opposite directions 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 opposite. Pedestrian counter flows on a crosswalk are investigated by the improved model under open boundary conditions. Numerical simulations show that lane formation is well reproduced and this process is pretty quick, which coincides with real pedestrian traffic. It is found that the effect of walkers in the same and opposite directions in the view field enhance walkers' intention to move to their preferential direction and separate pedestrian counter flow into lanes of uniform walking direction, especially when the number of walkers is large enough.