Abstract:

Based on the concept that pedestrian movements are dominated by some social forces in model, this paper develops the passengers’ behavioral simulation model in railway comprehensive passenger hubs with consideration of the interaction between pedestrians. Because of the individual differences in crowd distribution, this model uses target driving force and acting force between pedestrians or obstacles, extrusion forces and frictions to change the direction and speed of pedestrian movement. With the decision rule of preventing the penetration of pedestrian, the pedestrian overlap is eliminated. The principle of the target local minimum and setting auxiliary target are adopted, which also resolves the problems of dynamic collision avoidance and bypass between pedestrians and the environment. A computer simulation and analysis to Beijing South Railway Station is made to test the proposed model and the results show that the model is logical and effective.

Key words: railway transportation, social force model, passenger behavior, pedestrian overlap, local minimization

摘要：

吸取社会力模型中行人运动受到社会力支配的思想，综合考虑行人之间的相互影响，建立了面向大型铁路客运枢纽环境的乘客行为仿真模型.针对人群集散时行人之间的差异性,依据目标驱动力及行人与行人或障碍物之间的心理排斥力、挤压力、摩擦力,动态改变行人的运动方向和速度.引入行人防止穿透决策规则，消除行人重叠现象.采取目标点局部极小化原则，设置辅助目标点，解决行人与环境之间动态避碰和绕行问题.以北京南站高架层为仿真对象，针对不同客流到达率对行人集散的影响进行计算机仿真并加以分析，从而对模型进行校核检验，表明该模型具有合理性和有效性.

关键词: 铁路运输, 社会力模型, 乘客行为, 行人重叠, 局部极小化