The invention discloses an urban trunk signal phase difference dynamic optimization method based on traffic flow uncertainty prediction. The urban trunk signal phase difference dynamic optimization method sequentially comprises the following steps: Step 1, collecting trunk and traffic flow data; step 2, main line signal timing parameters are initialized; and step 3, dynamically optimizing the phase difference. According to the method, the traffic flow interval prediction value under a certain confidence level is obtained by obtaining the main line layout, the traffic flow and other data and predicting the mean value and the variance of the traffic flow, so that the uncertainty prediction of the traffic flow is realized. Based on prediction data and a trunk line initial timing scheme, trunk line delay and green wave bandwidth optimization phase difference are comprehensively considered, and finally dynamic and reliable trunk line phase difference optimization is achieved.

    本发明公开了一种基于交通流不确定性预测的城市干线信号相位差动态优化方法,步骤依次为:Step1:采集干线和交通流数据;Step2:初始化干线信号配时参数;Step3:动态优化相位差。本发明通过获取干线布局、交通流量等数据,通过对交通流均值和方差进行预测,获得某一置信水平下的交通流区间预测值,以实现交通流的不确定性预测。基于预测数据和干线初始配时方案,综合考虑干线延误和绿波带宽优化相位差,最终实现动态可靠的干线相位差优化。


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    Title :

    Urban trunk signal phase difference optimization method based on traffic flow uncertainty


    Additional title:

    基于交通流不确定性的城市干线信号相位差优化方法


    Contributors:
    GUO JIANHUA (author) / JI JIE (author) / WANG TAO (author) / LIU ZHAO (author)

    Publication date :

    2023-08-01


    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 / 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



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