An Efficient Optimization Approach to Real-Time Coordinated and Integrated Freeway Traffic Control
This paper tackles the problem of real-time optimal control of traffic flow in a freeway network deployed with coordinated and integrated traffic controllers. One promising approach to this problem is casting the underlying dynamic control problem in a model predictive framework. The challenge is that the resulting optimization problem is computationally intractable for online applications in a network with a large number of controllers. In this paper, a game-theoretic approach with distributed controllers is proposed to address the foregoing issue. The efficiency of the proposed method is tested for a coordinated ramp metering and variable-speed limit control applied to a stretch of freeway network. The parallel nature of the optimization algorithm makes it suitable for solving large-scale problems with high accuracy. The speed and accuracy of the proposed solution approach are examined and compared with that of the conventional optimization method in a case study to demonstrate its superior performance.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/41297384
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Supplemental Notes:
- Abstract reprinted with permission of IEEE.
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Authors:
- Fu, Liping
- Ghods, Amir Hosein
- Rahimi-Kian, Ashkan
- Publication Date: 2010
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: pp 873-884
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Serial:
- IEEE Transactions on Intelligent Transportation Systems
- Volume: 11
- Issue Number: 4
- Publisher: Institute of Electrical and Electronics Engineers (IEEE)
- ISSN: 1524-9050
- Serial URL: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6979
Subject/Index Terms
- TRT Terms: Distributed control; Game theory; Mathematical models; Optimization; Ramp metering; Traffic control; Traffic flow; Traffic models
- Subject Areas: Highways; Operations and Traffic Management; I70: Traffic and Transport; I71: Traffic Theory;
Filing Info
- Accession Number: 01333644
- Record Type: Publication
- Source Agency: UC Berkeley Transportation Library
- Files: TLIB
- Created Date: Mar 21 2011 2:15PM