The invention discloses a road intersection safety risk index calculation method, and the method comprises the steps: building a simulation model of a road intersection in a VISSIM, carrying out the simulation experiment, and outputting a track file; analyzing the track file in the SSAM to obtain a conflict statistical result, wherein the conflict statistical result comprises an included angle between conflict vehicle directions and a conflict attribute metering index; dividing conflicts of the road intersection into conflict types according to different danger levels and the included angles between the conflict vehicle directions; calculating a conflict risk index of each conflict in each conflict type according to the conflict attribute metering index; calculating the danger weight of each conflict type according to the value distribution of the conflict risk index of each conflict in each conflict type; and obtaining the safety risk index of the road intersection according to the danger weight of each conflict type and the statistical number of each conflict type.
本发明公开了一种道路交叉口安全风险指数计算方法,所述安全风险指数计算方法包括:在VISSIM中建立所述道路交叉口的仿真模型,并进行仿真实验和输出轨迹文件;在SSAM中对所述轨迹文件进行分析获取冲突统计结果,所述冲突统计结果包括:冲突车辆方向间夹角和冲突属性计量指标;根据所述冲突车辆方向间夹角将所述道路交叉口的各冲突按照不同危险等级划分为各冲突类型;根据所述冲突属性计量指标计算所述各冲突类型中所述各冲突的冲突风险指数;根据所述各冲突类型中所述各冲突的所述冲突风险指数的取值分布计算所述各冲突类型的危险权重;根据所述各冲突类型的所述危险权重和所述各冲突类型的统计数量获取所述道路交叉口的安全风险指数。
Road intersection safety risk index calculation method
一种道路交叉口安全风险指数计算方法
2020-12-29
Patent
Elektronische Ressource
Chinesisch
IPC: | G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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