NAVIGATION SYSTEM

PROBLEM TO BE SOLVED: To provide a navigation system capable of surveying a path passing through an actual outlet of a facility with higher precision. SOLUTION: In the case that the present position is within a facility which is contained in a map data, whether or not a path data of the facility exists is judged (S30). In the case there is, links of the path data in the facility are traced and a route passing through the facility outlet is searched (S40). In the case there is not, whether or not the facility outlet is learned is judged (S50). If not learned, a guide coordinates which ends route guide in the case that the facility is set as a destination is determined in the coordinates of the facility outlet (S60). If learned, the learned coordinates are determined as the facility outlet coordinates (S70). Then, the route is searched setting the determined facility outlet coordinates as the coordinate of the start point (S80). By determining the facility outlet even in the case that no path data in the facility exists, the route passing through the actual outlet of the facility can be searched with higher precision. COPYRIGHT: (C)2007,JPO&INPIT