| 摘要 |
PURPOSE: To set the starting point of a route search in a proper position even in the case where passing on the road is restricted due to obstacles such as rivers and suchlike in and around a vehicle position. CONSTITUTION: In this on-vehicle route searching device to be equipped with a current position detector 1 and a map storage memory 7, when a vehicle position detected by this current position detector 1 is not on a road being possible for a route search, plural nodes existing on a road being possible for the route search a car are selected, and the route search is carried out as to each route of up to each node from the car with map displaying data in the map storage memory 7. Then, the node in the nearest distance from the vehicle is set up as a starting point of the route search. With this constitution, a spot being at the shortest route from a vehicle position and actually reachable can be set as to starting point of the route search. |
