A loop detector is commonly used in detecting traffic states (flow, density, and speed). However, a loop detector's location and detection interval will have an influence on obtaining the traffic state. This paper proposes a method for generating the traffic state in a loop detector's mechanism based on the unique traffic flow (vehicular trajectories). In this paper, vehicular trajectories were first achieved based on vehicle space and time information obtained from a VISSIM model. Then, vehicle total travel time and distance were calculated in each detective space-time region. Finally, based on Edie's equation, the traffic state (flow, density and speed) was achieved. The proposed traffic state generation method was tested on Interstate 894, and a typical traffic flow fundamental diagram was successfully obtained. Compared with other methods, the proposed method can easily test the influence of loop detector settlement on traffic state accuracy.


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    Titel :

    Traffic State Generation from Loop Detectors Based on Vehicular Trajectory Data


    Beteiligte:
    Yang, Han (Autor:in) / Zhang, Jian (Autor:in) / Yang, Jianhao (Autor:in)

    Kongress:

    14th COTA International Conference of Transportation Professionals ; 2014 ; Changsha, China


    Erschienen in:

    CICTP 2014 ; 703-710


    Erscheinungsdatum :

    24.06.2014




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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