| 摘要 |
PURPOSE:To easily select a desired path by displaying an optimum path by the respective conditions so as to be discriminatable by only designating an origin and an end point. CONSTITUTION:A storage means 3 contains a map data of a road on which a vehicle can run, and also, divides the map data of this road at every branch point and stores at least a running distance, the time required for running and an expense attribute data required for running at every said division. When arbitrary origin and end point are instructed by a set input 1, at least the shortest distance path between the origin and the end point, the shortest time path and the min. expensive path are calculated by an attribute data by a CPU 2, and these calculated paths are displayed by a display device 5 so as to be discriminatable, respectively. |
