The report provides a overview of ramp metering: placing signals on freeway ramps that then allow traffic to enter the freeway at a controlled rate to keep the highway from jamming. Currently ramp meters are in operations in 20 metropolitan areas in North America. These metering systems vary from a fixed time operation at a single ramp to computerized control of every ramp along many miles of a freeway. The document presents a sample of ramp metering applications in several cities, describing the benefits that have been reported. It also addresses important factors that should be considered in metering applications. An overview of the status of ramp metering projects in North America and bibliography are also included.


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    Title :

    Ramp Metering Status in North America


    Publication date :

    1989


    Size :

    25 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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