微型机与应用Issue(20)：18-20,24,4.
基于路段转向流量的拥挤路网OD矩阵估计
OD matrix estimation based on turning traffic flow for congested networks
蒋云 1陈锋1
作者信息
- 1. 中国科学技术大学 信息科学技术学院，安徽 合肥 230026
- 折叠
摘要
Abstract
Conventional methods for estimating origin-destination(OD) trip matrices are primarily based on link traffic counts. In a real traffic scenario, due to the numbers of links are much smaller than the number that of OD pairs, it greatly limits the accuracy of these methods. This paper proposed an OD matrix estimation method based on turning traffic flow to improve estimation accuracy in congested networks. This method can considerably reduce the range of feasible solution set. The bi-level programming model is further applied to solve OD matrix estimation problem. The upper model is the entropy maximization (EM)model which is independent of the prior matrix. The lower model is the user equilibrium (UE) model. The experimental results show that our method can increase estimation accuracy effectively.关键词
OD 矩阵估计/路段转向流量/最大熵模型/用户均衡模型/双层规划模型Key words
OD matrix estimation/turning traffic flow/EM/UE/bi-level programming model分类
机械工程引用本文复制引用
蒋云,陈锋..基于路段转向流量的拥挤路网OD矩阵估计[J].微型机与应用,2015,(20):18-20,24,4.
