The invention discloses a road section travel time monitoring method and device. The method includes the following steps that: the position data of floating vehicles are sampled in one time interval, wherein the floating vehicles are matched to a monitored road section through a map matching process; actual travel time of the monitored road section in the time interval is determined according to sampled position data; the actual travel time in the time interval is inputted into a first prediction model and a second prediction model respectively, so that first predictive travel time and second predictive travel time of the monitored road section in a next time interval can be obtained; the weight coefficients of the first prediction model and the second prediction model are determined according to historic prediction errors of the first prediction model and the historic prediction errors of the second prediction model; and weighted averaging is performed on the first predictive travel time and the second predictive travel time according to the weight coefficients of the first prediction model and the second prediction model, so that final predictive travel time of the monitored road section in the next time interval can be obtained. With the road section travel time monitoring method and device of the invention adopted, the accuracy and reliability of road section travel time prediction can be improved.
Road section travel time monitoring method and device
2015-09-09
Patent
Elektronische Ressource
Englisch
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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