| 摘要 |
PROBLEM TO BE SOLVED: To provide a navigation device capable of searching for a route by delaying the search of a place meeting subordination conditions including time, a place and a case corresponding to instructions from a user.SOLUTION: A route search unit 121 identifies a route and a section of trains on which suffering by a molester occurs frequently and which has a possibility of being used during a commuting hour band by specific information which is data stored in subordination specific information storage means if the route and section of trains on which suffering by a molester occurs frequently during the commuting hour band are instructed as subordination conditions by the subordination conditions in a subordination condition file 107, and searches for a route from a starting point to a destination by delaying the search for the identified route and section of trains.SELECTED DRAWING: Figure 1 |
