| 摘要 |
PROBLEM TO BE SOLVED: To perform navigation of a plurality of vehicles.SOLUTION: A car navigation system includes: a route search part 113 for searching for a route from a departure place to a destination of each of a plurality of vehicles; a traffic volume simulation part 114 for simulating secular changes of traffic volume of each of a plurality of roads when respective vehicles move in the searched routes; a passing vehicle specification part 115 which, in congestion time that the traffic volume of a road exceeds a predetermined threshold, specifies vehicles passing through the road based on a simulated simulation result; a route re-search part 116 for re-searching for a route not passing through the congested road in the congestion time about one or more vehicles among the specified vehicles; and a route data transmission part 117 for transmitting data indicating the re-searched route to a driver's terminal U of the vehicle re-searching for the route, and transmitting data indicating a route searched for by the route search part 113 to driver's terminals U of the other vehicles. |
