交通枢纽内不确定情况下行人路径选择模型研究

Passenger Routing Selection Model with uncertainty in Traffic Hub

以理性经济人追求个人效用最大化作为分析旅客个人行为取舍的依据,本文根据旅客在枢纽内的活动模式和路径选择行为的层次化和走行过程中主要考虑的路径费用——走行距离、障碍物的影响、行人体力的限制、与其他行人相互的影响及环境刺激的作用等,确定旅客在不确定性条件下的个人效用模型.旅客风格的不同、体质的差异和出行目的的不同,是形成不同路径费用的最主要的原因,由于路径费用的可加性,以最优化的效用值来作为路径选择的依据,这一模型适用于风格不同体质有差异的异质群体.最后,使用仿真软件Anylogic,针对两种不同的异质群体进行了简单的仿真实验,证明模型的有效性.

In the paper,the passenger＇s behavior of routing selection is analyzed based on the theory that rational-economic man always pursues the maximum value of individual utility.The path-costs that passengers always concerned are： travel distance,influence of barriers,individual physical limitations,mutual influence with other pedestrians and the stimuli of environment,etc.In terms of the path-costs mentioned above,the classification of passengers routing selection and the individual activity mode,the paper proposes a routing selection model based on the individual utility.With the individual utility,passengers make their decisions on what kind of routes to choose.The model is suitable for the heterogeneous group with different properties.Lasting the section,two simple case studies are conducted to demonstrate the validity of the model.The subjective of the two groups are those travelers with time pressure and without travel time pressure.