静态多路径交通分配模型综述

Synthesis for Static Multi-path Traffic Assignment Models

静态交通分配反映路网交通流的拥挤性、路径选择的随机性等典型交通流特征,是交通规划方案评价和路网分析的重要方法。文章在介绍交通分配理论的基础上,对静态多路径交通分配的发展进行分析,并总结了静态多路径非平衡交通分配法的关键问题,分别对路阻函数及路权的计算、有效路径的定义、路网最短路算法、分配算法流程设计4个方面进行研究,总结静态交通非平衡分配法存在的不足,可为交通分配研究提供参考。

Static traffic assignment can describe the typical dynamic traffic flow characteristics such as the congestion of network traffic flows, the randomness of route choices, as well as the time-varying nature of traffic demands. Therefor it is an important method for traffic planning scheme evaluation and road network analysis. On the basis of the brief introduction of the traffic assignment theory, this article analyzes the static multi-path traffic assignment progress and sums up the key problems of static multiple route traffic. The calculation of road resistance function and right, the definition of effective path, the most short-circuit algorithm and assignment algorithm process design are studied the article. At the same time, the future research direction of static traffic assignment theory are summarized which can provide reference for traffic assignment research.