| 摘要 |
PROBLEM TO BE SOLVED: To provide an on-board navigation device capable of easily updating traffic control information as attribute information of a corresponding road when a vehicle travels along a searched recommendation course and cannot travel along the recommendation course due to a traffic control, and of reflecting such new traffic control information in the course search from the next time. SOLUTION: The device estimates candidates of deviation factors (road control, etc.) from the recommendation course and the road which deviates from the recommendation course, displays the estimated deviation factor candidates as a list on a screen for selection, and updates the traffic control information of the recommendation course according to the deviation factors. COPYRIGHT: (C)2008,JPO&INPIT |
