RESEARCH PAYS OFF: NEW RAMP METERING ALGORITHM IMPROVES SYSTEMWIDE TRAVEL TIME

In an ongoing effort to smooth traffic flow, the Washington State Department of Transportation (WSDOT) has sponsored research since 1994 to improve its ramp metering algorithm. After lengthy development, careful modeling, and online testing, a new algorithm has proved so successful that WSDOT is using it in the greater Seattle area to meter more than 100 ramps on Interstates 5, 405, and 90, and on State Route 520. Details on its development, application and benefits are provided in this article.

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  • Corporate Authors:

    Transportation Research Board

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  • Authors:
    • O'Brien, A
  • Publication Date: 2000-7

Language

  • English

Media Info

  • Features: Figures;
  • Pagination: p. 38-39
  • Serial:
    • TR News
    • Issue Number: 209
    • Publisher: Transportation Research Board
    • ISSN: 0738-6826
  • Publication flags:

    Open Access (libre)

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Filing Info

  • Accession Number: 00796961
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 18 2000 12:00AM