| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problems in conventional path retrieval that paths must be retrieved by the number of destinations if there are a plurality of destinations because a path from a start point to a first destination must be first retrieved and then a path from the first destination to a second destination must be retrieved when going through a plurality of destinations other than the start point and an end point and that peripheral information must be separately retrieved when retrieving peripheral information from the start point, the end point, and the destinations obtained based on the results of path retrieval. SOLUTION: The path retrieval can be realized by operation at a time even if there are a plurality of destinations by specifying the start point and a plurality of destinations as input information. Moreover, the peripheral information can be retrieved based on the information about the start point, a through point, and the destinations obtained by the path retrieval by linking traffic information data base with peripheral information data base.</p> |
