| 摘要 |
PROBLEM TO BE SOLVED: To search a route to a destination again so as to be more suited to the intention of a user at the time of deviating from a recommended route. SOLUTION: In the case of deviating from the recommended route, and in the case that a judgement point on the recommended route set with a present position as a reference is not more on a destination side than a reference point on the recommended route set with a deviating spot as the reference, it is judged that the user is not advancing along the recommended route and intends to utilize the route other than the recommended route, and the route of a minimum cost is searched corresponding to a cost from the present position to the destination again. In the other case, returning from the present position to the route is promptly performed and the route to the destination is searched. |
