交通分布建模理论综述

Summarization on Traffic Distribution Modeling Theory

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。作为四阶段法的第二个阶段,如何准确地建立交通的分布模型一直是一个难点。由于每个交通出行都是个体行为,而四阶段法作为集计模型,需要将个体的出行行为转化成宏观层面的交通分布,因此,在交通分布层面应反应出个体出行是检验交通分布模型是否合理的标准。基于熵的最大值原理,该文对交通分布建模方法及理论进行了综述。

In the course of road planning and design,the traffic volume is generally forecast by the four-step method.As the second step of four-step method,how to correctly create the traffic distribution model is always a difficult point.It is required to transfer the individual trip behavior to the macro traffic distribution because of each traffic trip being the individual behavior,but the four-step method being the aggregating model.Therefore,the traffic distribution level should reflect that the individual trip is the standard to check up whether or not reasonable the traffic distribution model is.Based on the maximum entropy principle,this paper summarizes the traffic distribution modeling method and its mechanism.