ALLOCATION OF FREEWAY RAMP METERING VOLUMES TO OPTIMIZE CORRIDOR PERFORMANCE

A simple macroscopic freeway traffic corridor model is formulated for the purpose of developing optimal allocations of freeway on-ramp metering volumes. The model represents a freeway and a single parallel "equivalent surface street," both undirectional, which are interconnected by freeway on-ramps. Since a choice of routes is included in the problem formulation, the fairly standard methodology of "traffic assignment" is employed to predict how drivers will react to the on-ramp metering. An explicit traffic assignment algorithm which includes ramp queueing is developed. Two specific coridor performance criteria, freeway travel rate and total travel-time rate, are formulated in terms of the model variables. Then the problem of choosing ramp metering volumes to optimize a performance criterion is posed. A computationally efficient suboptimal dynamic programming scheme is developed and illustrated by an example. /DOT/

  • Corporate Authors:

    Institute of Electrical and Electronics Engineers

    3 Park Avenue, 17th Floor
    New York, NY  USA  10016-5997
  • Authors:
    • Payne, H J
    • Thompson, W A
  • Publication Date: 1974-6

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Filing Info

  • Accession Number: 00262189
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 22 1974 12:00AM