The invention provides a mixed traffic flow-oriented performance index calculation method and system, and relates to the technical field of traffic flow evaluation, and the method comprises the steps: obtaining historical vehicle trajectory data, and fitting a distribution function through the historical vehicle trajectory data; acquiring initial conditions and boundary conditions in the mixed traffic flow in real time; constructing a mixed traffic flow random model based on the distribution function and a preset car-following model; substituting the initial conditions and the boundary conditions into the mixed traffic flow random model for analogue simulation to obtain track information of all vehicles in a preset time period; the method comprises the steps of obtaining position combinations of all vehicles in a mixed traffic flow according to track information of all vehicles in a preset time period, and calculating and obtaining performance indexes of the mixed traffic flow based on all the position combinations. And the performance index of the mixed traffic flow can be accurately calculated.

    本发明提供了一种面向混合交通流的性能指标计算方法及系统,涉及交通流评价技术领域,包括获取历史车辆轨迹数据,利用所述历史车辆轨迹数据拟合分布函数;实时获取混合交通流中的初始条件和边界条件;基于所述分布函数和预设的跟驰模型构建混合交通流随机模型;将所述初始条件和边界条件代入所述混合交通流随机模型中仿真模拟,得到所有车辆在预设时段的轨迹信息;根据所有车辆在预设时段的轨迹信息得到混合交通流中的所有车辆的位置组合,基于所有的位置组合计算得到所述混合交通流的性能指标,本发明基于人类驾驶行为的不确定性和CAVs的退化现象构建模型,能够对混合交通流性能指标的进行准确计算。


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    Titel :

    Performance index calculation method and system for mixed traffic flow


    Weitere Titelangaben:

    一种面向混合交通流的性能指标计算方法及系统


    Beteiligte:
    ZHENG FANGFANG (Autor:in) / LU LIANG (Autor:in) / LIU XIAOBO (Autor:in) / TANG YOUHUA (Autor:in) / LI YUE (Autor:in) / LIU JING (Autor:in) / HOU KANGNING (Autor:in) / BAI LINHAN (Autor:in) / ZOU YANGANG (Autor:in)

    Erscheinungsdatum :

    2023-04-28


    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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