The invention provides an urban region division method based on congestion level similarity, which comprises the following steps: firstly, considering the connectivity characteristic of a road network, constructing a sequence for storing a branch and leaf network by taking each link as a starting point, and searching links in the sequence; and continuously searching adjacent road sections of all elements in the sequence by taking the variance of the congestion level as a judgment criterion for judging whether the adjacent road sections can be added into the sequence or not until no new road section can be added into the sequence, so as to form a branch and leaf network of each link. Secondly, setting different variance thresholds to obtain branch and leaf networks under different standards; then calculating the similarity between the branch and leaf networks under each same threshold value, and superposing the similarities under different threshold values to be used as an adjacent matrix of spectral clustering in region division;
本发明提供一种基于拥堵水平相似性的城市区域划分方法,首先考虑到路网的连通特性,以每个链路作为起点构建一个存储枝叶网络的序列,搜索序列内链路;以拥堵水平的方差作为相邻路段能否加入序列的评判标准,继续搜索序列内所有元素的相邻路段,直至没有新的路段能够加入到序列中,至此形成每条链路的枝叶网络。其次设置不同的方差阈值,得到不同标准下枝叶网络。然后计算每个相同阈值下,枝叶网络之间的相似度,并将不同阈值下的相似度叠加用以作为区域划分中谱聚类的邻接矩阵。
Urban region division method based on congestion level similarity
一种基于拥堵水平相似性的城市区域划分方法
23.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
Urban area road traffic network subarea division method based on congestion index distribution
Europäisches Patentamt | 2023
|Europäisches Patentamt | 2022
|Engineering Index Backfile | 1959
|Online Contents | 1995
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