混合交通方式划分与交通分配联合模型

目前我国很多城市各种类型车辆混合行驶，本文重点研究对称混合交通条件下方式划分与交通分配联合模型。描述了UE原则的变分不等式问题。在对称混合交通条件下，证明该联合模型的最优性条件与Wardrop用户均衡原则等价，以及路段流量最优解的唯一性，得到了Loglt形式的分担率模型。对实现该联合模型算法，提高算法的效率具有指导作用。

A Combinatorial Model of Modal Split and Traffic Assignment for Mixed Urban Traffic Networks

The application of combinatorial models for traffic demanding forecasting is analyzed. This paper puts emphasis upon studying the combinatorial models of modal split and traffic assignment, and describes the variational inequality of the User's Equilibrium. The uniqueness of the optimal solution to the combinatorial model and first order optimality conditions for the combinatorial model is identical with wardrop principle of UE are proved by optimization theory on the basis of symmetrical link travel time function, and the model of the modal split is consistent with the logit model. The study could help to improve the algorithm of the combinatorial model.