TRAVELING DIRECTION SPECIFICATION SYSTEM, TRAVELING DIRECTION SPECIFICATION METHOD, TRAVELING DIRECTION SPECIFICATION DEVICE, PROGRAM, AND RECORDING MEDIUM

摘要

A traveling direction specification system is provided with a traveling direction specification device for specifying the traveling direction of a vehicle. The traveling direction specification device is provided with a traveling direction specification unit for specifying the traveling direction of the vehicle in a road network (G) on the basis of the disposition relationship between a first link (L) in which the vehicle is present and a second link (L) in which the vehicle has been present before entering the first link (L).