| 摘要 |
PROBLEM TO BE SOLVED: To provide a route guidance system with which suitable guidance can be displayed for a user corresponding to the change of situation at all the time. SOLUTION: In an arithmetic processing part 13, communication with a road managing office 20 is performed at the interval of fixed time and in each of communicating processing, concerning each of destinations displayed on a display part 11 comprising a route guidance display panel 10A, various kinds of road management information such as constructions and regulations of roads related to that route are acquired from a road information providing server 21 provided in the road managing office 20. Concerning each of destinations, various kinds of weather information such as rainfall, snowfall, quantity of fallen snow and thick fog occurrence in each of areas to the route are acquired from a weather information providing server 22 and concerning each of destinations, traffic volume information such as traffic volume, and congested spot measured by respective traffic volume monitoring sensors 31 provided as road managing facilities on a main road to the route is acquired from a traffic volume monitor system 23. On the basis of such acquired information, a route information deciding part 15 and a required time deciding part 16 are controlled and processing for displaying the optimal route is executed. |
