The invention discloses a traffic unit safety evaluation method based on a non-complete elastic collision theory, and the method comprises the steps: 1, selecting a proper straight line conflict risk index, and constructing a non-straight line conflict risk index; 2, establishing a one-dimensional collision model under linear collision and a two-dimensional collision model under nonlinear collision according to a non-complete elastic collision theory, and constructing collision severity index extension based on the models; 3, calculating the conflict risk and severity of the indexes for identifying the traffic units under different parameters, and collecting the accident rate and accident severity of the same place; and 4, selecting the optimal parameter of the index, and evaluating the safety level of the traffic unit. According to the method, the dangerousness before and after the vehicle arrives at the conflict point can be accurately described, the influence of vehicle deformation recovery in the collision springback stage on the conflict severity evaluation result can be accurately represented, and the evaluation precision of the conflict dangerousness index and the conflict severity index is improved, so that the accuracy of traffic unit safety evaluation is improved.

    本发明公开了一种基于非完全弹性碰撞理论的交通单元安全评价方法,包括:1、选取合适的直线冲突危险性指标,构建非直线冲突危险性指标;2、根据非完全弹性碰撞理论,建立直线冲突下一维碰撞模型、非直线冲突下二维碰撞模型,并基于以上模型构建冲突严重性指标扩展;3、计算上述指标在不同参数下识别交通单元的冲突危险性与严重性,采集同地点的事故率与事故严重度;4、选取指标的最佳参数,并评价交通单元安全水平。本发明能精准描述车辆到达冲突点之前与之后的危险性,并能准确表征碰撞回弹阶段车辆形变的恢复对冲突严重性评价结果的影响,提高冲突危险性指标、冲突严重性指标的评价精度,从而提升交通单元安全评价的准确性。


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    Titel :

    Traffic unit safety evaluation method based on incomplete elastic collision theory


    Weitere Titelangaben:

    一种基于非完全弹性碰撞理论的交通单元安全评价方法


    Beteiligte:
    CHEN YIKAI (Autor:in) / BIAN YUJIE (Autor:in) / TAO ZHENGBIN (Autor:in) / DUAN RUI (Autor:in) / DAI GAOLE (Autor:in) / WENG YIFAN (Autor:in) / HUANG MINGFENG (Autor:in) / WANG JIN'AO (Autor:in)

    Erscheinungsdatum :

    22.04.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS




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