The invention relates to the technical field of intelligent traffic, and provides a road network traffic subarea dynamic division method and system considering time-varying traffic flow. The method comprises the following steps: constructing a traffic network topological graph; predicting the traffic flow of each intersection in a period of time in the future so as to calculate the correlation degree value of each intersection; according to the association degree value of each intersection, preliminarily dividing the traffic network topological graph to obtain a plurality of sub-regions; in the next time prediction period, calculating a new association degree value of each intersection according to the updated and predicted traffic flow; according to the new correlation degree value of each intersection, merging the plurality of subareas, and calculating a maximum modularity value; performing dynamic division and readjustment on the region according to the relationship between the maximum modularity difference of the two times and the redivision threshold; and dynamically dividing the sub-regions of the traffic network topological graph by taking the position of the maximum modularity value as the optimal sub-region division number.

    本发明涉及智能交通技术领域,提供了一种考虑时变交通流量的路网交通子区动态划分方法及系统。该方法包括,构建交通路网拓扑图;预测各个交叉口未来一段时间内的交通流量,以计算各个交叉路口的关联度值;依据各个交叉路口的关联度值,对交通路网拓扑图进行初步划分,得到若干个子区;在下一个时间预测段,依据更新预测的交通流量,计算各个交叉口的新关联度值;依据各个交叉口的新关联度值,对若干个子区进行合并,计算最大模块度值;根据前后两次最大模块度差值与再划分阈值的关系,对区域进行动态划分和重新调整;以模块度最大值位置处为最优的子区划分个数,对交通路网拓扑图的子区域进行动态划分。


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    Titel :

    Road network traffic subarea dynamic division method and system considering time-varying traffic flow


    Weitere Titelangaben:

    考虑时变交通流量的路网交通子区动态划分方法及系统


    Beteiligte:
    ZHU WENXING (Autor:in) / ZHAO JUN (Autor:in)

    Erscheinungsdatum :

    2023-09-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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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