The objective of the study was to determine the effect of on-ramp closure on freeway traffic flow. A week-long test of the effect of on-ramp closure on freeway traffic flow was conducted. The three week period prior to the study week was used to establish control values of volumes; stoppage frequency, duration, and length; and speeds. The traffic parameters recorded during the week of testing were compared with the control values. Ramp closure was obtained through use of ramp closure signs and policeman stationed at the head of the entrance ramps. Traffic parameters were measured through use of the television surveillance equipment, overhead detectors, and strategically placed study views. The results of the study inicated short time ramp closures resulted in an increase in peak hour volumes, a substantial decreased in the number of stoppages, a large reduction in the lenght of stopped queue, and an increase in average speeds. Diverted vehicles were rerouted to another on-ramp to the freeway.


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    Title :

    An Evaluation of Freeway Ramp Closure


    Contributors:
    E. F. Gervais (author) / W. Roth (author)

    Publication date :

    1966


    Size :

    50 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English