The invention discloses a data-driven traffic safety risk assessment and variable speed limit management and control algorithm and system, and relates to the field of expressway management. The algorithm comprises the following steps: acquiring first data associated with traffic safety and second data associated with a traffic accident; based on the first data and the second data, a traffic accident prediction model is constructed, and the traffic accident prediction model outputs prediction data associated with a traffic accident; constructing a traffic safety risk assessment model based on the prediction data and a traffic accident prediction model, and outputting a risk assessment value associated with traffic safety by the traffic safety risk assessment model; generating a variable speed limit control algorithm; according to the variable speed limit management and control algorithm, if the risk assessment value is greater than a preset threshold value, starting a speed limit management and control measure; and if the risk assessment value is not greater than the preset threshold value, not starting the speed limit management and control measure. According to the invention, based on traffic safety risk assessment and a variable speed-limiting control algorithm, variable speed-limiting control is carried out in different lanes, and the safety of the expressway is guaranteed.
本申请是数据驱动的交通安全风险评估与可变限速管控算法及系统,涉及高速公路管理领域。所述算法包括获取交通安全关联的第一数据和交通事故关联的第二数据;基于所述第一数据与第二数据,构建交通事故预测模型,所述交通事故预测模型输出交通事故关联的预测数据;基于所述预测数据及交通事故预测模型,构建交通安全风险评估模型,所述交通安全风险评估模型输出交通安全关联的风险评估值;生成可变限速管控算法;根据所述可变限速管控算法,若所述风险评估值大于预设阈值,开启限速管控措施;若所述风险评估值不大于所述预设阈值,不开启限速管控措施。本申请基于交通安全风险评估与可变限速管控算法,分车道进行可变限速管控,保障高速公路安全。
Data-driven traffic safety risk assessment and variable speed limit management and control algorithm and system
一种数据驱动的交通安全风险评估与可变限速管控算法及系统
2022-10-04
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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