容量限制交通分配模型的改进及软件开发

Improving Method for Capacity Restralnt Equilibrium Model of Traffic Assignment

本文通过分析我国的交通情况,提出了容量限制交通分配平衡模型的改进方法。首先,本文对原路阻函数进行了改进,改进后的路阻函数考虑了机动车道、自行车道交通负荷和道路几何条件的影响以及交叉口延误。其次,本文提出了快速简便的最短路权矩阵计算新方法。改进后的容量限制平衡模型,只保留了原模型的结构,其主要内容全部被更新或充实,使模型更加完善,特别适用于我国的城市交通规划及区域公路网规划。

In this, paper, improving method for capacity restraint equilibrium model of traffic assignment is presented by analysing traffic situation in China, Firstly, original road obstruction function is improved, the effects of vehicular load, bicycle load and road geometrical condition are taken into account in improved road obstruction functicn. Secondly, the intersection delays are particularly considered to calculate the road-weight (trip time). Thirdly, a new method for calculating the shortest-path-weigth matrix is presented. The capacity restraint model of traffic assignment that has been improved reserves only the structure of the original model and its major contents have been renewed substantially to make the model more perfect. It is particularly suited for urban traffic planning and regional highway network planning in Chins.