节点文献
由路段交通量推算OD出行量方法研究——基于多路径概率分配模型的迭代反推法
A Study on Estimating OD Trips From Observed Link Flows ——Based on the Method of Iterative Procedure to Calculate OD on the Multi-path Assignment Model
【摘要】 在改进有效路段和有效路径定义的基础上 ,采用随机—最短路多路径分配模型 ,求解分配率矩阵 ,建立了多路径分配模型的迭代反推方法 ,并采用假设论证法检验了方法系统的可靠性、合理性。讨论了影响出行量推算结果的主要因素 ,获得了因变于分配率矩阵的两个重要结论
【Abstract】 A new iteration framework of estimating OD trips is established by a stochastic shortest path multi path assignment model to calculate the probability matrix P based on the two improved definitions of effective path and effective link.Meanwhile a hypothesis argumentation is put forward to examine the feasibility and rationality of the iteration method.Then the factors of influencing result of estimation are discussed.Finally two important conclusions resulted from P are obtained.
【关键词】 多路径分配模型;
分配率矩阵;
迭代反推;
假设论证法;
【Key words】 multi path assignment model; probability matrix; iterative procedure; hypothesis argumentation;
【Key words】 multi path assignment model; probability matrix; iterative procedure; hypothesis argumentation;
【基金】 国家 973重点基础研究发展项目 (G19980 30 419)
- 【文献出处】 交通运输工程学报 ,Journal of Traffic and Transportation Engineering , 编辑部邮箱 ,2001年02期
- 【分类号】U491.113
- 【被引频次】41
- 【下载频次】867