The invention relates to the technical field of intelligent transportation, and provides an urban travel flow prediction method and device, equipment and a medium. The method comprises the following steps: acquiring a travel track, weather condition data and interest point data; obtaining vehicle outflow, vehicle inflow and directed travel flow between the grid area and other grid areas based on the travel trajectory; on the basis of the vehicle outflow, the vehicle inflow, the weather condition data and the interest point data, feature vectors of the time period grid regions are obtained; constructing a grid region relation graph based on the feature vector and obtaining a representation vector; coding the characterization vector according to the travel trajectory to obtain a directed characterization vector; predicting the directed representation vector by using a travel flow decoder to obtain a travel flow predicted value; optimizing the travel flow decoder to obtain a travel flow prediction model; and performing prediction by using the travel flow prediction model to obtain a travel flow prediction result. According to the method, the accuracy of predicting the travel flow can be improved.
本申请涉及智能交通技术领域,提供了一种城市出行流量预测方法、装置、设备及介质。该方法包括:获取出行轨迹、天气状况数据以及兴趣点数据;基于出行轨迹获取车辆流出量、车辆流入量和网格区域与其他网格区域之间的有向出行流量;基于车辆流出量、车辆流入量、天气状况数据以及兴趣点数据获取时间段网格区域的特征向量;基于特征向量构建网格区域关系图并获取表征向量;根据出行轨迹对表征向量进行编码获取有向表征向量;利用出行流量解码器对有向表征向量进行预测得到出行流量预测值;对出行流量解码器进行优化得到出行流量预测模型;利用出行流量预测模型进行预测,得到出行流量预测结果。本申请的方法能提高对出行流量进行预测的精确度。
Urban travel flow prediction method, device, equipment and medium
一种城市出行流量预测方法、装置、设备及介质
2024-06-07
Patent
Electronic Resource
Chinese
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 / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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