| 摘要 |
<p>A link that is closest to a departure place of one' s vehicle is detected by a route searching. When a U-turn route link to come back from the closest link by passing from the closest link through the U-turn route again to the closest link is detected, a U-turn guide is made, based on a signal of this detection, to the effect that a return is made to the present position after a U-turn. <IMAGE></p> |
