Intersections pose special safety concerns because of the high probability of critical conflicts resulting from unsafe driver actions and maneuvers. The absence of movement priorities, lack of lane discipline, forced entry by non-priority movements, etc., at unsignalized intersections violate the assumptions involved in capacity calculation. A key aspect of this study is to analyze conflicting flows at unsignalized intersections, which vary depending on site conditions and geometrical features in heterogeneous traffic environments and to estimate movement capacity at unsignalized intersections. At unsignalized intersections, vehicles from different directions cross and turn simultaneously, resulting in severe vehicle-vehicle conflicts. Thus, traffic safety is an important aspect to be evaluated at unsignalized intersections. The study also aims at conducting a safety assessment at unsignalized intersections using the microsimulation model (VISSIM) coupled with the Surrogate Safety Assessment Model (SSAM). The study found that SSAM is adaptable to intersections of varying geometry and serving heterogeneous traffic.


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    Titel :

    Capacity Analysis and Safety Assessment of Unsignalized Intersection Using Conflict Technique


    Weitere Titelangaben:

    Lecture Notes in Civil Engineering


    Beteiligte:
    Singh, Dharamveer (Herausgeber:in) / Maji, Avijit (Herausgeber:in) / Karmarkar, Omkar (Herausgeber:in) / Gupta, Monik (Herausgeber:in) / Velaga, Nagendra Rao (Herausgeber:in) / Debbarma, Solomon (Herausgeber:in) / Souparnika, P. H. (Autor:in) / Alex, Sheela (Autor:in) / Radhakrishnan, Padmakumar (Autor:in)

    Kongress:

    International Conference on Transportation Planning and Implementation Methodologies for Developing Countries ; 2022 ; Mumbai, India December 19, 2022 - December 21, 2022


    Erschienen in:

    Transportation Research ; Kapitel : 41 ; 509-521


    Erscheinungsdatum :

    19.12.2023


    Format / Umfang :

    13 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Safety Assessment at Unsignalized Intersections Using Conflict Technique

    Singh, Dungar / Das, Pritikana / Sharma, Binish et al. | Springer Verlag | 2024



    Capacity at Unsignalized Intersections Derived by Conflict Technique

    Brilon, Werner / Wu, Ning | Transportation Research Record | 2001


    Interim materials on unsignalized intersection capacity

    National Research Council, Committee Highway Capacity and Quality of Service, USA | TIBKAT | 1991