| 摘要 |
PROBLEM TO BE SOLVED: To provide a route searching device capable of accurately and quickly retrieving an optimum route. SOLUTION: In a route searching device in which a plurality of route searching means work in collaboration to search a route, the leading route searching means 301 transmits the result of searching in progress to the following route searching means 305, which in turn outputs an optimum route on the basis of the result. The leading route searching means 301 interrupts the process during searching and transmits the result of searching in progress to the following route searching means 305, which in turn outputs the optimum route on the basis of the result of searching in progress. |
