Modeling and simulation of weaving pedestrian flow in subway stations
Chen Ran, Li Xiang, Dong Li-Yun
Shanghai Institute of Applied Mathematics and Mechanics, Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai University, Shanghai 200072, China
Abstract There are differences in efficiency when pedestrian flows with various directions pass through the bottleneck of a subway in different manners, and the mechanisms of congestion at the bottleneck are distinct as well. The weaving motion of pedestrian flows with various directions in subways is simplified into two crowds with different ODs passing through the bottleneck which connects two parallel channels. The lattice gas model is improved by introducing the floor field so that it is suitable for the description of pedestrian flow under complex situations. It is shown by experiments that different ways lead to the difference in total time when the crowds pass through the field of interest. Then the total time of crowds passing through the field in different ways is investigated numerically, and the effect of bottleneck width is taken into account as well. Numerical simulations confirm the findings from experiments. It is found that the diagonal movement of a pedestrian should be included in the model in order to give a better description of real pedestrian traffic. And the mechanism of congestion near the bottleneck is discussed in detail.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10972135, 11172164, 11047003), Innovation Program of Shanghai Municipal Education Commission, China (Grant No. 11YZ12), the Shanghai Program for Innovative Research Team in Universities, China, and the Program for Changjiang Scholars and Innovative Research Team in Universities, China (Grant No. IRT0844).
Corresponding Authors:
董力耘
E-mail: dly@shu.edu.cn
Cite this article:
Chen Ran,Li Xiang,Dong Li-Yun. Modeling and simulation of weaving pedestrian flow in subway stations. Acta Phys. Sin, 2012, 61(14): 144502.
Bai Ke-Zhao, Chen Rui-Xiong, Liu Mu-Ren, Kong Ling-Jiang, Zheng Rong-Sen. Study of the grade roundabout crossing[J]. Acta Phys. Sin, 2009, 58(7): 4500-4505.