Congestion Control in Freeway Corridors: The IMIS System
This paper describes a traffic control system design for congestion control in freeway corridors. The system has a hierarchical structure. A corridor level control acts in a supervisory capacity dynamically allocating traffic among alternative corridor facilities, such as freeways, frontage roads and signalized arterials. A local level control then selects control parameters for the individual facilities based on the predicted usage at the corridor level. A user specified performance function is optimized in the process.
Extensive simulation testing was conducted to verify algorithm performance and evaluate potential system benefits. A prototype system named IMIS (Integrated Motorist Information System), which is based on this design, is now being implemented in Long Island, New York.
KeywordsTransportation Assure Tated Estima
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- 1.Lindley, J. A., “Urban Freeway Congestion: Quantification of the Problem and Effectiveness of Potential Solutions,” ITE Journal, January 1987.Google Scholar
- 2.Adams, L. H., “IMIS: Computer Control of a Freeway Corridor,” NYSDOT, 1982.Google Scholar
- 3.Frank, M. and Wolfe, P., “An Algorithm of Quadratic Programming,” Naval Research Logistics Quarterly, Vol, 3, 1956,Google Scholar
- 4.Robertson, D. I., Transyt; A Traffic Network Study Tool., Road Research Laboratory Report LR253, 1969.Google Scholar
- 5.Reiss, R. A., et al. Development of Traffic Logic for Optimizing Traffic Flow in an Intercity Corridor (4 volumes). Final Report under Contract DOT-FH-11–8738. U.S. Department of Transportation, Washington, D.C., January 1978.Google Scholar
- 6.Gragg, B. B. and Hambly, L. W. Corridor Control Program for Optimizing Traffic Flow in an Intercity Corridor (Program Documentation Reports). Contract DOT-FH-ll-8738. U.S. Department of Transportation, Washington, D.C., January 1978.Google Scholar
- 7.SCOT Model—User’s Manual and Program Documentation. Office of Research, Federal Highway Administration, May 1975.Google Scholar
- 8.Reiss, R. A. Traffic Diversion Software—Applications Summary. Report No. FHWA/RD-80/100, Federal Highway Administration, September 1981.Google Scholar