The invention discloses a traffic safety early warning method based on highway traffic flow abrupt change, which can discover traffic abnormal conditions by judging the flow abrupt change, can help atraffic management department to discover traffic abnormal events in advance, and can effectively formulate management and dredging measures. The method comprises the following steps: acquiring road basic information between adjacent nodes of an expressway; according to the acquired basic information, processing data according to four characteristics of roads, time, road flow and weather, and applying a long-short memory model to predict the traffic flow of the downstream intersection; acquiring and comparing the actual flow of the downstream intersection with the predicted flow for analysis,and judgining the traffic state; and judging whether an abnormal condition exists between the two acquisition points or not according to an analysis result of the traffic flow mutation, and carrying out timely early warning for possible traffic events. According to the method, the current and future traffic flow states are timely and accurately identified by analyzing and researching the road traffic flow states, and the method is an important premise for formulating correct induction and control measures.

    一种基于高速公路交通流突变的交通安全预警方法,通过判断流量突变可以发现交通异常情况,可以帮助交通管理部门提早发现交通异常事件,有效制定管理疏通措施;包括获取高速公路相邻节点之间的道路基础信息;根据所获取的基础信息,按道路、时间、道路流量、天气四个特征处理数据,应用长短记忆模型,预测下游路口交通流量;获取下游路口实际流量与预测的流量进行对比分析,对交通状态进行判别;根据交通流突变的分析结果,判断两采集点之间是否存在异常情况,针对可能出现的交通事件进行及时预警。本发明通过对道路交通流状态进行分析研究,及时、准确地辨识当前和未来交通流状态,是制定正确诱导和控制措施的一个重要前提。


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    Titel :

    Traffic safety early warning method based on highway traffic flow abrupt change


    Weitere Titelangaben:

    一种基于高速公路交通流突变的交通安全预警方法


    Beteiligte:
    ZHU WENJIA (Autor:in) / LUO LELE (Autor:in) / LIU SONG (Autor:in) / TAO SHIDE (Autor:in) / CAO YANFENG (Autor:in)

    Erscheinungsdatum :

    2020-04-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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