基于概率占优的C-Logit随机交通分配模型

A probability-dominant C-Logit stochastic traffic assignment model

在引入一种新的路径相关性指标基础上,构建了C-Logit概率占优用户均衡(PdUE)模型,给出了其等价形式,C-Logit-PdUE模型不仅保持了原有Logit-PdUE模型的良好数学结构和性质,而且还能合理处置路径叠加问题,最后,借助数值算例对模型参数进行了灵敏度分析,算例结果显示路径叠加问题对交通分配结果影响显著.

This paper develops a C-logit Probability-dominant User Equilibrium (PdUE) model in which a new route correlation measure is suggested,and equivalent versions of the new model are established accordingly.The current C-Logit PdUE model is capable of maintaining the superior mathematical structure and properties of the original Logit-PdUE,and meanwhile,it is capable of handling the path overlapping problem.In the end,a numerical example is conducted to perform parameter sensitivity analyses in the model.Results show that the path overlapping problem has significant effect on the traffic assignment consequence.