AN USER-OPTIMAL ROUTE CHOICE MODEL WITH ASYMMETRIC COST FUNCTIONS INCORPORATING INTERSECTION-RELATED TRAVEL TIMES. FINAL REPORT

This report describes a traffic assignment model which is innovative in two respects as compared with models conventionally used in practice. First, each turning movement in the street intersections of the network is represented by a travel time-flow relationship; conventional models represent only approach travel times and flows, although turning movements may be accounted for. Second, the travel times for each turning movement are determined as a function of all flows in the intersection as well as the appropriate cycle time and green splits for those flows. Such cost functions are termed asymmetric because of their mathematical properties. In conventional models, each link's travel time depends only on that link's flow. This model is implemented and solved for a small street network for St. Charles, Illinois. To the authors' knowledge, it is the first implementation of such a model with realistic link functions and a real network. The report describes how the link travel time-flow functions were estimated statistically from simulated intersection operations. Then, the experience with the solving model computationally is documented. A lengthy discussion of future research directions concludes the report.

  • Corporate Authors:

    Illinois Transportation Research Consortium

    Chicago, IL  United States 

    Illinois Department of Transportation

    Chicago Area Transportation Study, 300 West Adams Street
    Springfield, IL  United States  60606

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Boyce, D
    • Meneguzzer, C
    • Rouphail, N
    • Sen, A
    • Lauritzen, T
  • Publication Date: 1990-1

Language

  • English

Media Info

  • Pagination: 143 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00625101
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: FHWA/IL/RC-005
  • Contract Numbers: IHR-011
  • Files: TRIS, USDOT
  • Created Date: Oct 16 1993 12:00AM