The invention relates to a highway traffic safety situation early warning method and system, and the method comprises the steps: firstly obtaining driver information, road condition information, traffic condition information and weather information, and carrying out the preprocessing of the obtained information; then, taking parameters contained in each type of information as secondary indexes to carry out traffic safety situation early warning based on single-factor evaluation, and comparing values of the secondary indexes with early warning thresholds of the secondary indexes under different early warning levels to obtain early warning levels based on the secondary indexes; if the early warning grade based on the second-level index has grade I, determining that the early warning grade is grade I and the security situation is a crisis state; if the early warning level based on the second-level index does not have the level I, traffic safety situation early warning based on multi-factor evaluation is carried out; and finally, calculating a traffic safety situation comprehensive evaluation value through multi-factor evaluation, comparing the traffic safety situation comprehensive evaluation value with an evaluation threshold value, and determining an early warning level and a safety situation. The highway traffic safety situation is evaluated in a single-factor and multi-factor combined mode for graded early warning, and the early warning efficiency and the early warning accuracy are improved.
本发明为一种高速公路交通安全态势预警方法及系统,首先获取驾驶员信息、道路条件信息、交通状况信息和气象信息,并对获取的信息进行预处理;然后,将每种信息包含的参数作为二级指标进行基于单因素评价进行交通安全态势预警,将二级指标的取值与不同预警等级下该二级指标的预警阈值进行对比,得到基于二级指标的预警等级;若基于二级指标的预警等级存在Ⅰ级,则判定预警等级为Ⅰ级,安全态势为危机态;若基于二级指标的预警等级不存在Ⅰ级,则进行基于多因素评价进行交通安全态势预警;最后,多因素评价计算交通安全态势综合评价值,将交通安全态势综合评价值与评价阈值进行对比,确定预警等级和安全态势。本发明采用单因素和多因素相结合的方式评估高速公路交通安全态势进行分级预警,提高了预警效率和预警准确度。
Highway traffic safety situation early warning method and system
高速公路交通安全态势预警方法及系统
29.12.2023
Patent
Elektronische Ressource
Chinesisch
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