The invention discloses an urban road network operation reliability dynamic measurement method based on a random graph, and the method comprises the following steps: 1, building a graph model of a road network based on a connection structure of an urban road traffic road network; 2, measuring the operation reliability of the road network unit at the moment t based on the travel time parameter; step 3, searching a minimum road set of all OD pairs in the road network; 4, calculating the importance comprehensive indexes of all OD pairs, and obtaining a k-OD pair set influencing the operation of the road network; 5, measuring the operation reliability of the OD pair at the moment t based on a series-parallel model; and 6, calculating the importance influence coefficient of the OD pair, and measuring the operation reliability of the road network at the t moment. According to the invention, the operation reliability of the urban road traffic network can be measured in real time, and a manager can identify a congested area and carry out early warning prevention and control work.
本发明公开了一种基于随机图的城市路网运行可靠性动态度量方法,包括以下步骤:步骤1:基于城市道路交通路网的连接结构,构建路网的图模型;步骤2:基于行程时间参数度量t时刻路网单元的运行可靠性;步骤3:搜索路网中所有OD对的最小路集;步骤4:计算所有OD对的重要度综合指标,得到影响路网运行的k‑OD对集合;步骤5:基于串并联模型度量t时刻OD对的运行可靠性;步骤6:计算OD对的重要度影响系数,度量t时刻路网的运行可靠性。本发明能够实时度量城市道路交通路网的运行可靠性,有助于管理者识别拥堵区域并展开预警防控工作。
Urban road network operation reliability dynamic measurement method based on random graph
一种基于随机图的城市路网运行可靠性动态度量方法
2023-07-18
Patent
Electronic Resource
Chinese
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / 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 / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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