Patent ID: 8958984
Filing Date: 2015-02-17
Classification: G01C

Abstract:
1. A route search device, comprising: map data of a road map; a derived route acquisition section that acquires a first derived route for a mobile body from an origin point of the mobile body to a destination of the mobile body; a route correction region acquisition section that acquires a route correction region corresponding to the first derived route; a place to be passed through setting section that sets a place to be passed through in the route correction region; a start point and end point setting section that sets a start point and an end point in the route correction region; a corrected route acquisition section that acquires a corrected route, not included in the first derived route, from the start point and passing through the place to be passed through to arrive at the end point; a route correction section that corrects the first derived route to a second derived route from the origin point to the destination, constituted by a route from the origin point to the start point, the corrected route, and a route from the end point to the destination; and a pass through frequency storage section that stores, included in the map data, pass through frequencies by a plurality of mobile bodies that pass through at least one of a plurality of intersections and a plurality of roads; wherein the place to be passed through setting section, by referring to the pass through frequency storage section, sets at least one of an intersection and a road whose pass through frequency is high as the place to be passed through.