A New Coordinated Control Method on the Intersection of Traffic Region
Autor: | Qing-fang Yang, Yashi Wang, Ming-hui Ma, Shi-dong Liang |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2016 |
Předmět: |
050210 logistics & transportation
Service quality Traffic congestion reconstruction with Kerner's three-phase theory Article Subject business.industry Computer science lcsh:Mathematics 05 social sciences Control (management) 010501 environmental sciences lcsh:QA1-939 01 natural sciences Variable (computer science) Intersection Modeling and Simulation 0502 economics and business Metering mode business Queue Control methods Simulation 0105 earth and related environmental sciences Computer network |
Zdroj: | Discrete Dynamics in Nature and Society, Vol 2016 (2016) |
ISSN: | 1026-0226 |
DOI: | 10.1155/2016/5985840 |
Popis: | Intersection regions widely exist in road networks as crucial connections, and the congestion effects on traffic in the networks cannot be ignored. In general, a conventional intersection region includes a merging region and more than two ramps, whose congestion brings a serious negative effect on traffic service quality and satisfaction of drivers. Specifically, intersection region congestion is caused by congestion in merging regions. However, current control methods regarding coordination of the variable speed limits and ramp metering in order to solve merging region congestion are insufficient to handle congestion occurring in the intersection region. Therefore, a new method of coordinated control is proposed in this paper based on mainline control using the variable speed limits and coordinated ramp metering. The coordinated control method is formulated considering the degree of crowdedness indexes and implemented based on the queue length, with the goal to relieve congestion in conventional intersection regions caused by merging region congestion. The coordinated control method is further evaluated based on an actual traffic network. The results show that the proposed method is effective in terms of improving traffic service quality and relieving intersection region congestion. |
Databáze: | OpenAIRE |
Externí odkaz: |