To identify a moving route without being affected by existence of traffic congestion.

The communication terminal 110 waits until information on the route and the moving time of the route are received from the communication terminal 110 of other vehicle having moved the route passing the first and the second points is received with a reception part 202. Upon receiving, either one of the routes among the routes that other vehicle moved is specified as the moving route of the vehicle with a specifying part 205 base on the moving time of the received information and outputs the specified moving route with the output part 206. The acquisition request transmitted from other communication terminal 110 is waited until received with the reception part 202. Upon receiving, whether the vehicle has passed the first and the second points is determined with a determination part 203. When having passed, information concerning the route having passed the first and the second points and the moving time of the route is transmitted to the communication terminal 110 of other vehicle with a transmitter 204.