The invention discloses an urban expressway vehicle conflict risk prediction method and device, equipment and a medium, and can be applied to the technical field of traffic data processing. According to the invention, after the first data set including the vehicle trajectory data and the traffic flow data in the urban expressway is obtained, the data in the first data set is preprocessed to obtain the conflict severity index and the conflict risk occurrence probability index; integrating the conflict severity index and the conflict risk occurrence probability index based on a membership function and a fuzzy rule to obtain a current risk index, extracting time features and spatial features of data in the first data set, and fusing the time features and the spatial features to obtain spatial-temporal features; and risk prediction of the vehicle at the future moment is carried out according to the current risk index and the spatial-temporal characteristics, so that the accuracy of urban expressway vehicle conflict risk prediction can be effectively improved.
本申请公开了一种城市快速路车辆冲突风险预测方法和装置、设备及介质,可应用于交通数据处理技术领域。本申请通过获取城市快速路中包括车辆轨迹数据和交通流数据的第一数据集后,对第一数据集内的数据进行预处理得到冲突严重程度指标和冲突风险发生概率指标,然后基于隶属度函数和模糊规则对冲突严重程度指标和冲突风险发生概率指标进行整合得到当前风险指标,同时提取第一数据集内的数据的时间特征和空间特征后,对时间特征和空间特征进行融合得到时空特征,再根据当前风险指标和时空特征进行车辆未来时刻的风险预测,从而可以有效提高城市快速路车辆冲突风险预测的准确度。
Urban expressway vehicle conflict risk prediction method and device, equipment and medium
城市快速路车辆冲突风险预测方法和装置、设备及介质
2025-04-15
Patent
Electronic Resource
Chinese
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