This study demonstrates a process using vehicle trajectory data to generate detector volume, speed and time occupancy data, along with the generalized flow rate, density and space mean speed data. The relationships among detector volume, speed and time occupancy along signalized arterials are analyzed theoretically and experientially. If the generalized definitions are followed, the fundamental relationship holds valid in a signalized arterial environment. Simply converting detector volume within one data collection time period to use as the generalized flow rate introduces estimation errors. There are two major reasons. The first is that vehicles don't completely cross the detector during the data collection time period. The second is that it assumes vehicles would evenly spread across the data collection time period when crossing the detection zone. Traffic flow intensity is introduced and defined within the time-space regions to provide much more accurate description of the traffic flow arrival and departure conditions.


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    Titel :

    Relationships among detector volume, speed and occupancy along signalized arterials


    Beteiligte:
    Wu, Jingcheng (Autor:in) / Qin, Xiao (Autor:in) / Horowitz, Alan J. (Autor:in) / Jin, Xia (Autor:in)


    Erscheinungsdatum :

    2017-08-01


    Format / Umfang :

    524464 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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