Study was carried out at nine entrance ramps in 3-mi study area on John C. Lodge Freeway, Detroit, Mich to develop freeway variable traffic control system with ramp entrance control permitting opening or closing of ramp; each of entrance ramps was placed under control of ramp signal bearing message "Don't Enter"; signal is blankout type device that shows message only when signal is illuminated; review of week's study shows that great gain in freedom of traffic flow is possible by use of ramp closure system.


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    Title :

    Optimization of freeway traffic by ramp control


    Additional title:

    Nat Research Council -- Highway Research Board -- Research Rec


    Contributors:


    Publication date :

    1964


    Size :

    15 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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