摘要
提出了一种基于LOG IT方法的交通分配模型,该模型是动态出发时间选择和随机用户平衡的联合模型(DDSUE)。作为一种基于全路径的交通分配模型,在路径选择上,使用了LOG IT模型求出每条路径的选择概率;在出发时间选择上,采用路径通行能力和路径选择概率来联合确定交通出发量,然后利用总交通出发量和路径选择概率求出每条路径上的驶入量。最后以一个实际算例,并通过改变参数对结果进行了分析。
This paper presented a Logit-based dynamic traffic assignment model（DTA）. This model combined departure time with dynamic stochastic user equilibrium assignment problem （DDSUE）. In route choice, it computed the proportion of each path, which had been chosen by using Logit model. Indeparture time choice, it determined the departure flow by path capacity and the proportion of each path which had been chosen. Each path inflow had been calculated by using the path capacity multiplying the proportion of each path which had been chosen. Finally, in this paper a sample had been given and some results had been analyzed as the parameter changed.
出处
《交通与计算机》
2006年第1期12-14,共3页
Computer and Communications
