Traffic Management Systems
This study uses regression analysis to evaluate long-run traffic management system performance. Three important traffic management systems in the Twin Cities metro area - Ramp Metering, Variable Message Signs (VMS), and Freeway Service Patrol (the Highway Helper Program) were evaluated with multiple regression models to predict link speed and incident rate. We find that ramp meters increase freeway link speed and reduce incident rate. Freeway Service Patrols increase link speed when incidents are present. The results for variable message signs are ambiguous.
|Date of creation:||2004|
|Date of revision:|
|Publication status:||Published in Assessing the Benefits and Costs of Intelligent Transportation Systems (David Gillen and David Levinson (co-editors)) Kluwer Publishers.|
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Web page: http://nexus.umn.edu
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- Levinson, David & Zhang, Lei, 2006.
"Ramp meters on trial: Evidence from the Twin Cities metering holiday,"
Transportation Research Part A: Policy and Practice,
Elsevier, vol. 40(10), pages 810-828, December.
- David Levinson & Lei Zhang, 2006. "Ramp Meters on Trial: Evidence from the Twin Cities Metering Holiday," Working Papers 200604, University of Minnesota: Nexus Research Group.
- Banks, James H. & Kelly, Gregory, 1997. "Traffic Management Systems Performance Measurement: Final Report," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt8cp6t00d, Institute of Transportation Studies, UC Berkeley.
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