Patent ID: 7333889

Claim:
A car navigation system provided in a vehicle, the car navigation system comprising: a traffic-related information acquisition unit for acquiring traffic-related information about vehicular traffic; a setting unit for setting a destination; a route retrieval unit for retrieving a guidance route from a departure place to the set destination; a route guidance unit for providing (i) route-related information about the retrieved guidance route using display guidance and audio guidance, and (ii) traffic-related information about the retrieved guidance route using display guidance and audio guidance when the traffic-related information about the retrieved guidance route is acquired by the traffic-related information acquisition unit; a determination unit for determining whether or not part or all of sections in the retrieved guidance route is specific to an occupant of the vehicle; and a route-related information editing unit for editing, of route-related information to be provided by the route guidance unit, route-related information about part or all of sections in the retrieved guidance route that is determined to be specific to the occupant, wherein the route guidance unit uses the edited route-related information to perform audio guidance for part or all of sections in the retrieved guidance route that is determined to be specific to the occupant.