| 摘要 |
PROBLEM TO BE SOLVED: To provide a navigation system capable of learning not only a road section in which a user has actually traveled but also a road section which is highly probably acknowledged or acknowledgeable by the user.SOLUTION: Movement road specification means acquires the current location of a vehicle to specify a movement road on which a vehicle has actually traveled. Continuity determination means determines the presence/absence of the continuity of a road connected to the end point of the movement road specified by the movement road specification means (S220, S240). Then, the road determined to have continuity by the continuity determination means is set as a road extension by road extension setting means (S250). That is, the presence/absence of the continuity with the movement road on which the vehicle has actually traveled is determined to set the road extension. |
