期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 523, 期 -, 页码 1237-1247出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2019.04.090
关键词
Macroscopic Fundamental Diagram; Discrete boundary-feedback-control; Urban traffic flow
资金
- National Natural Science Foundation of China [61773243]
- Natural Science Foundation of Shandong Province, China [ZR2017MF011]
In this work, we proposed a discrete boundary-feedback-control strategy for urban traffic flow based on Macroscopic Fundamental Diagram. Firstly, the road network is divided into several sub-regions according to the degree of correlation of road intersections, and then the Macroscopic Fundamental Diagram characteristics of each traffic sub-region are analyzed to obtain the optimal critical value of vehicles in each sub-region. For a single traffic sub-region, when the number of accumulated vehicles in the sub-region exceeds the optimal threshold, we control the entry and exit of the vehicle at the boundary of the traffic sub-region by adjusting the traffic timing of the traffic lights at the boundary of the sub-region. The Vissim simulation experiment was conducted to verify that the vehicle delay in the road network was significantly reduced with the discrete boundary-feedback-control strategy, as well, the road congestion was alleviated, the travel efficiency was improved, and the road network traffic operation status was improved. (C) 2019 Elsevier B.V. All rights reserved.
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