The invention relates to the technical field of analysis and measurement control, and discloses an accident-prone road section identification method for an expressway, which comprises the following steps: firstly, determining a starting point and an ending point of an accident-prone road section, and sorting out accident records in a time period needing to be researched; detailed data of each accident are read, the equivalent accident number is calculated, and meanwhile a sliding window method is used for road section division; counting the equivalent accident number of each road section; counting the number of road sections with the same equivalent accident number, calculating the frequency and the cumulative frequency of the road sections, drawing a cumulative frequency scatter diagram, and performing polynomial fitting to obtain a cumulative frequency curve diagram; and taking equivalent accident numbers N80 and N95 as identification standards, and identifying accident-prone road sections and potential accident-prone road sections. According to the method, accident-prone road sections and potential accident-prone road sections are determined; according to the method, the sliding step length of road section division is optimized, the accident-prone road sections can be identified more accurately, comprehensive and accurate identification can be performed on the accident-prone road sections in combination with historical data of highway traffic accidents, a traffic management department can determine the treatment priority, and the treatment benefit is maximized under the condition of limited resources; and the overall safety level of the expressway is improved.

    本发明涉及分析及测量控制技术领域,公开了一种用于高速公路的事故多发路段鉴别方法,首先确定事故多发路段的起点和终点,并整理出需要研究的时间段内的事故记录;读取每一起事故的详细数据并计算当量事故数量,同时用滑动窗口法进行路段划分;统计每一路段的当量事故数;统计当量事故数相同的路段个数,并计算其频率和累计频率,绘制累计频率散点图,并进行多项式拟合得出累计频率曲线图;取当量事故数N80、N95为鉴别标准,鉴别事故多发路段和潜在事故多发路段。本发明确定事故多发路段和潜在事故多发路段;优化路段划分的滑动步长,更精确地鉴别事故多发路段,结合高速公路交通事故历史数据,能对事故多发路段进行较为全面准确的鉴别,有利于交通管理部门确定治理优先级,在资源有限的情况下,最大化提升治理效益,提高高速公路总体安全水平。


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    Title :

    Accident-prone road section identification method for expressway


    Additional title:

    一种用于高速公路的事故多发路段鉴别方法


    Contributors:
    CHEN ZHIGANG (author) / ZOU JUNHUI (author) / CHEN SHUWAN (author) / ZHANG YAHUI (author) / LAN FAYANG (author)

    Publication date :

    2024-08-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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