High-risk driving behaviors and accident-prone road sections can be identified based on the relationship between the trajectory and highway geometry. In the present study, field driving experiments were performed on seven two-lane mountain highways, and vehicle trajectories under natural driving conditions were acquired. Further, the morphological features of the vehicle trajectory and how it is affected by the highway geometry were analyzed. The following were observed: 1) A vehicle approached the inner side, and then the outer side of a curve, and finally returned to its original lane. 2) For curves with medium and small deflection angles, the apex (curve cutting point) of the actual trajectory was ahead of that of the ideal path, and the actual trajectory moved closer to the outer side of the curve when the driver completed the cut. 3) Inertia may cause the vehicle to move too close to the outer side of the curve after a cut, for which reason the driver must correct the trajectory, although overcorrection may move the vehicle into the oncoming lane. 4) The smaller the radius of the horizontal curve, the more frequently the trajectory entered the oncoming lane. And 5), with increasing curve length, the driver may cut the curve a second time.


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    Titel :

    Vehicle Trajectory Typologies at Curved Sections of Complex Two-Lane Mountain Roads


    Beteiligte:
    Xu, Jin (Autor:in) / Luo, Xiao (Autor:in) / Shao, Yiming (Autor:in)

    Kongress:

    17th COTA International Conference of Transportation Professionals ; 2017 ; Shanghai, China


    Erschienen in:

    CICTP 2017 ; 4230-4238


    Erscheinungsdatum :

    2018-01-18




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch