A framework of real-time traffic information system

Hsun-Jung Cho*, Chien Lun Lan, Yow Jen Jou, Ming Chorng Hwang, Tsu Tian Lee

*Corresponding author for this work

研究成果: Article同行評審

摘要

In this paper, a framework of real-time macroscopic traffic simulation is proposed. Real-time traffic simulation using macroscopic traffic flow model on freeway have been studied and implemented in the past. We introduced a framework of implementing real-time traffic simulation on urban network. To implement the simulation on an urban network, the estimation of origin-destination (O-D) matrix must be considered. Thus the framework consists of 1) Path generation, 2) Dynamic Origin-Destination Estimation and 3) Link Dynamics. Path generation is based on the Wardrop's user equilibrium concept and modified convex combination algorithm. State space model is used in dynamic O-D estimation, while the LWR model is used to describe the macroscopic traffic flow in Link Dynamics. This study implements the simulation with real-time traffic input and predict traffic condition in real-time. An empirical example is conducted on a real network consists of 91 nodes and 244 links.

原文English
頁(從 - 到)117-122
頁數6
期刊WSEAS Transactions on Mathematics
5
發行號1
出版狀態Published - 1 一月 2006

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