The invention relates to the technical field of traffic safety analysis, provides a driving delay degree multi-dimensional feature analysis system of an urban traffic accident site, and aims at extracting road dimensional features when an accident occurs based on driving delay data of the urban traffic accident site, and providing a targeted data filling scheme in combination with the characteristics of missing features. And according to statistical distribution, redundant feature screening is completed, and structured traffic modeling data of four dimension features of weather, road, POI and time is constructed. The traffic delay degree caused by urban traffic accidents is systematically modeled and analyzed from the three aspects of individual heterogeneity, group transferability and group heterogeneity, and the influence effect of significant variables in multi-dimensional influence factors is explored, so that a traffic control department is helped to take preventive measures and emergency response countermeasures; and a theoretical basis is provided for design optimization and management decision of the road, so that the influence caused by traffic accidents is relieved, the operation risk level of an accident road section is improved, secondary accidents are avoided, and traffic pollution is reduced.
本发明涉及交通安全分析技术领域,提供一种城市交通事故地点的行车延误程度多维度特征分析体系,基于城市交通事故地点行车延误数据,提取事故发生时的道路维度特征,结合缺失特征的特点,提出针对性的数据填补方案,根据统计分布,完成冗余特征筛选,构建了天气、道路、POI、时间4个维度特征的结构化交通建模数据。从个体异质性、群体可转移性与群体异质性三个方面对城市交通事故所致的行车延误程度较为系统地建模分析,探究多维度影响因素中显著变量的影响作用,以期帮助交管部门采取预防措施与应急响应对策,对道路的设计优化和管理决策提供理论依据,进而缓解交通事故带来的影响,提高事故路段的运行风险水平、避免二次事故、减小交通污染。
Driving delay degree multi-dimensional feature analysis system for urban traffic accident site
一种城市交通事故地点的行车延误程度多维度特征分析体系
2025-05-09
Patent
Electronic Resource
Chinese
IPC: | G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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