不同道路条件下路网交通流的宏观模型

IF 2 4区工程技术 Q2 ENGINEERING, CIVIL

Journal of Advanced Transportation Pub Date : 2012-03-06 DOI:10.1002/atr.215

Tie-Qiao Tang, Lou Caccetta, Yong-Hong Wu, Hai-Jun Huang, Xiao-Bao Yang

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引用次数: 75

摘要

本文建立了考虑不同道路条件的宏观交通流模型。分析和数值结果表明，良好的道路条件可以提高均匀交通流的速度和流量，而恶劣的道路条件会降低均匀交通流的速度和流量。数值结果还表明，良好的道路条件可以平滑激波，提高交通流的稳定性，而恶劣的道路条件会导致激波变陡，降低交通流的稳定性。我们的研究结果也与实证结果在定性上一致，这意味着所提出的模型可以定性地描述道路条件对交通流的影响。这些结果可以指导交通工程人员在交通工程中提高道路质量。版权所有©2012 John Wiley &儿子,有限公司

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A macro model for traffic flow on road networks with varying road conditions

In this paper, we develop a macro traffic flow model with consideration of varying road conditions. Our analytical and numerical results illustrate that good road condition can enhance the speed and flow of uniform traffic flow whereas bad road condition will reduce the speed and flow. The numerical results also show that good road condition can smooth shock wave and improve the stability of traffic flow whereas bad road condition will lead to steeper shock wave and reduce the stability of traffic flow. Our results are also qualitatively accordant with empirical results, which implies that the proposed model can qualitatively describe the effects of road conditions on traffic flow. These results can guide traffic engineers to improve the road quality in traffic engineering. Copyright © 2012 John Wiley & Sons, Ltd.

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来源期刊

Journal of Advanced Transportation 工程技术-工程：土木

CiteScore

5.00

自引率

8.70%

发文量

466

审稿时长

7.3 months

期刊介绍： The Journal of Advanced Transportation (JAT) is a fully peer reviewed international journal in transportation research areas related to public transit, road traffic, transport networks and air transport. It publishes theoretical and innovative papers on analysis, design, operations, optimization and planning of multi-modal transport networks, transit & traffic systems, transport technology and traffic safety. Urban rail and bus systems, Pedestrian studies, traffic flow theory and control, Intelligent Transport Systems (ITS) and automated and/or connected vehicles are some topics of interest. Highway engineering, railway engineering and logistics do not fall within the aims and scope of JAT.