道路交通量分配建模综述

在道路规划和设计过程中,交通量的预测一般都采用四阶段法。在众多研究者的共同努力下,交通量的分配是研究最为成熟的一个阶段。人们根据不同的交通行为的假设,选择不同的交通抗阻和离散选择模型,推出了不同的交通分配模型,例如全有全无分配模型、按比例分配模型、均衡分配模型等。该文在前人研究的基础上,对不同的交通分配模型进行分析,根据它们不同的机理,阐明了不同分配模型的应用条件。

Summary of Road Traffic Assignment Model

In road planning and design process,the four-step method is generally used for the forecast of traffic volume.Traffic assignment is the most mature step under many researchers great effort. According to different travel behavior hypothesis,the people choose the different traffic delay and discrete choice models,and then deduce the different traffic assignment models,such as all-or-nothing assignment model,proportional assignment model and equilibrium assignment model.This paper analyzes such different traffic assignment models based on the formers' research.According to the different mechanisms of the models,the paper makes clear the application conditions of the different assignment models.