This traffic information processing system comprises: vehicle-mounted instruments each to be mounted on a vehicle; an instrument-mounted-vehicle number detection unit that detects, from among vehicles mounted with the vehicle-mounted instruments and vehicles without the vehicle-mounted instruments traveling in a location divided into a plurality of zones, the number of vehicles that are mounted with the vehicle-mounted instruments and that enter a sample area, which is a part of said zones, on the basis of information received from the vehicle-mounted instruments; a total vehicle number detection unit that detects the number of all the vehicles that enter said sample area; a vehicle ratio calculation unit that calculates a ratio-related value based on said number of vehicles mounted with the vehicle-mounted instruments as detected by said instrument-mounted-vehicle number detection unit and said number of all the vehicles as detected by said total vehicle number detection unit; and a total vehicle number estimation/calculation unit that calculates the total number of vehicles within said zone(s) on the basis of the number of vehicles that are mounted with the vehicle-mounted instruments and that enter said zone(s) and said ratio-related value as calculated by said vehicle ratio calculation unit.
Traffic information processing system, server device, traffic information processing method, and program
2015-07-22
Patent
Elektronische Ressource
Englisch
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