SOME ISSUES RELATING TO METERING OR CLOSING OF FREEWAY RAMPS PART II. TRANSLATIONALLY SYMMETRIC CORRIDOR

As an idealization of a long freeway embedded in a network of parallel streets, we consider a hypothetical freeway with equally spaced entrance and exit ramps joining an adjacent slower speed parallel route. The origin-destination pattern of trips is assumed to be translationally summetric on the ajacent route. Each ramp can be metered (causing a queue to form), closed, or left uncontrolled. Two extreme strategies are considered. In the first, the ramps have a spacing short compared with the average trip length, but all ramps are metered at the same rate. In the second, the spacing between ramps is adjusted by closing ramps, but those which are open are not metered. Flow on the freeway is reduced because travelers will (on the average) travel a certain fraction of their journey on the alternate route, enroute to a ramp. The latter strategy typically gives a lower total travel cost, for flows on the freeway close to its capacity. /Author/

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  • Corporate Authors:

    Operations Research Society of America

    428 East Preston Street
    Baltimore, MD  USA  21202
  • Authors:
    • ALLEN, B L
    • Newell, G F
  • Publication Date: 1976-8

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Filing Info

  • Accession Number: 00145183
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 30 1977 12:00AM