Patent ID: 7546203
Filing Date: 2009-06-09
Classification: G01C

Abstract:
1. A route searching apparatus comprising: a processing device that includes a processor that executes a control program, stored on a computer-readable medium, to search a guided route along which a vehicle is to be guided from a current vehicle position to a destination, set a detour segment to be avoided over part of the guided route, search a detour route that avoids the detour segment, extract guidance-requiring intersections that are intersections at which the vehicle is to be guided to follow a course on the guided route and that exclude intersections at which the vehicle is not to be guided to follow a course on the guided route, and set a segment ending at a guidance-requiring intersection close to the current vehicle position among the guidance-requiring intersections as the detour segment, wherein when a distance from the current vehicle position to the guidance-requiring intersection set as an end point of the detour segment is smaller than a predetermined lower limit, the processing device executes the control program to set a segment extending from the current vehicle position to a point on the guided route distanced from the current position by a predetermined value as the detour segment and search the detour route that avoids the detour segment thus set.