A modified social force model considering random behavior fluctuations

作者:Qu Zhao Wei; Cao Ning Bo; Chen Yong Heng*; Bai Qiao Wen; Zhao Li Ying; Kang Meng
来源:Jiaotong Yunshu Xitong Gongcheng Yu Xinxi/Journal of Transportation Systems Engineering and Information Technology, 2016, 16(5): 192-197.

摘要

To make pedestrian microscopic simulation model more comprehensive, this paper builds a pedestrian microscopic simulation model to describe pedestrian crossing process considering random behavior based on social force model. In the modified model, the influence of random behavior on pedestrian crossing is studied. Two models are modeled to represent random behavior from speed and force. Based on the simulation results, on condition that the ratio of bidirectional pedestrian is 1: 1, the pedestrian simulation trajectories and the relationship between the crossing time and crossing pedestrian number are acquired. Besides, when random behavior anisotropic character λαΕtakes different values from 0 to 1, the difference between pedestrian simulation crossing time and calculates crossing time based on crossing time empirical model are compared and analyzed. It is found that random behavior leads the crossing time to increase, and the second modified social force model can reproduce the crossing trajectories similar to actual crossing trajectories. when random behavior anisotropic character λαΕtakes different values from 0.5 to 1, pedestrian simulation crossing time of second modified social force model are closest to calculated crossing time based on crossing time empirical model.

  • 出版日期2016