Coordinated Traffic Responsive Ramp Metering Strategies - An Assessment Based on Previous Studies
Coordinated ramp metering strategies have been suggested as more effective measures than local ramp metering when there are multiple congestion bottlenecks on the freeway, excessive ramp delays, and when the optimization of freeway and on-ramp performances requires the metering of several ramps. A number of studies compared the performances of the available coordinated traffic responsive ramp metering algorithms relative to each other and to other strategies. However, the results from these studies have not been well summarized to provide a good understanding of the relative performances of these algorithms. This paper discusses the available coordinated ramp metering strategies and review studies that evaluated and compared their performances. Based on the reviewed study results, it appears that traffic responsive ramp metering strategies can outperform Time of Day (TOD) strategies. In addition, it appears that coordinated traffic responsive algorithms can outperform local control algorithms, depending on several factors including traffic demand patterns, how well the coordinated algorithms are calibrated, and the particular coordinated algorithm under consideration.
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Corporate Authors:
1100 17th Street, NW, 12th Floor
Washington, DC United States 20036 -
Authors:
- Hadi, Mohammed A
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Conference:
- 12th World Congress on Intelligent Transport Systems
- Location: San Francisco California, United States
- Date: 2005-11-6 to 2005-11-10
- Publication Date: 2005
Language
- English
Media Info
- Media Type: Print
- Features: CD-ROM; References; Tables;
- Pagination: 11p
- Monograph Title: Proceedings of the 12th World Congress on Intelligent Transport Systems
Subject/Index Terms
- TRT Terms: Algorithms; Bottlenecks; Coordination; Freeways; Management; Optimization; Ramp metering; Strategic planning; Traffic control
- Subject Areas: Administration and Management; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01015846
- Record Type: Publication
- Files: TRIS
- Created Date: Dec 9 2005 2:08PM