The invention relates to a calculation method for road segment and road network regional traffic state indexes. The method is characterized by comprising the steps of 1, conducting initialized mesh division on the whole road network region; 2, calculating the average values of the speeds of all sub road segments inside each mesh region at fixed time intervals to obtain a sequence of the speed average values of all the sub road segments inside the meshes, and forming vectors describing mesh features by mesh position coordinates and the average speed value sequence; 3, adopting a clustering method for clustering the feature vectors of the meshes, thereby generating a plurality of road network regions; 4, calculating the traffic indexes of the road segments and the clustered road network regions. According to the calculation method, the current road network traffic conditions are more comprehensively and precisely provided, fine forecasting of the traffic state will provide more comprehensive traffic state information under different geographic scales for a traffic administrative department and researchers, and the calculation method is beneficial to improving administrative efficiency and decision-making reasonability.
Calculation method for road segment and road network regional traffic state indexes
2015-07-08
Patent
Electronic Resource
English
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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