The invention discloses a trajectory data-based overspeed event danger level calculation method and terminal, and the method comprises the steps: activating a corresponding entry/exit detection region based on a passing phase, and screening out a passing target set; extracting a complete track of each target passing through the intersection in the passing target set, and determining a speed limit value of the target in combination with a vehicle type and a driving direction; traversing each track in the track set, analyzing whether an effective overspeed event exists or not, and if yes, extracting an overspeed track and recording the overspeed track into the overspeed track set; if the trajectory set does not exist, continuing traversing until the trajectory set is completely traversed; the overspeed degree, the overspeed duration, the overspeed time node and the overspeed position are analyzed based on the overspeed trajectory, and then the danger degree of the overspeed event is calculated. According to the method, the vehicle trajectory data with high temporal-spatial resolution and the signal release data are combined, the complete driving trajectory of the vehicle passing through the intersection is extracted to identify the overspeed event, the danger degree of the overspeed driving event is comprehensively analyzed, and the traffic safety level of the intersection is improved.
本发明公开了一种基于轨迹数据的超速事件危险程度计算方法及终端,包括:基于通行相位激活相应的驶入/驶离检测区域,筛选出通过目标集;提取通过目标集中的各目标通过路口的完整轨迹,结合车辆类型和行驶方向确定目标的限速值;遍历轨迹集中各轨迹,分析是否存在有效超速事件,若存在,则提取超速轨迹记录至超速轨迹集中;若不存在,则继续遍历,直到轨迹集完全遍历;基于超速轨迹分析超速程度、超速持续时间、超速时间节点、超速位置,进而计算超速事件的危险程度。本发明将高时空分辨率的车辆轨迹数据和信号放行数据相结合,提取通过路口车辆的完整行驶轨迹识别超速事件,综合分析超速驾驶事件的危险程度,有利于提升交叉口交通安全水平。
Trajectory data-based overspeed event danger level calculation method and terminal
一种基于轨迹数据的超速事件危险程度计算方法及终端
2024-01-19
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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