A comprehensive study of vehicles queueing at traffic signalled junctions was carried out. The results showed that the variation in the length of the queue of a given number of vehicles was greater during the green compared with the red stage, although the variation was found to be randomly distributed about the mean queue in both cases. The traffic simulation model MULTSIM was used to generate over 40 thousand queues to assess the cycle by cycle variation in the number of vehicles queueing at a signalled junction based on 30 simulated cycles. Results of an on-site survey and the simulation modelling are used to derive measures of the cyclic variation in the spare capacity for vehicles queueing on a link in a traffic network during the effective green and red stages. The latter are then translated into a queueing performance indicator designed to be included as part of the delay performance index used by TRANSYT 7 to optimize traffic signal settings.


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    Title :

    Measures of Queueing Performance for a Traffic Network


    Contributors:
    M. C. Bell (author)

    Publication date :

    1980


    Size :

    29 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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