NAVIGATION DEVICE, NAVIGATION METHOD, AND NAVIGATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a navigation device enabling a traveling driver to receive support of route selection, even when a route is not set beforehand. SOLUTION: This navigation device for displaying on a map a reachable range within a prescribed time from a present position used as a base point is equipped with a searching part for searching for the reachable range within the prescribed time when traveling through two interchanges respectively existing ahead in the traveling direction, by using the present position on a traveling highway as the base point; and a display control part for superimposing and displaying on the map the reachable range within the prescribed time searched for by the searching part. COPYRIGHT: (C)2008,JPO&INPIT