Abstract: A vehicle navigation system and method that enables a user to request and receive route instruction information based on traffic between frequent destination locations. The user may select frequent destination locations between which the user frequently travels, such as home and office. The user may select one of the frequent destination locations while located at the other frequent destination location and the system may query a call center to receive route instruction information based on current traffic information between the locations. Map and route information between the frequent destination locations may be stored in the vehicle navigation system and be retrieved to minimize or eliminate download time of the information when requested by the user.

Abstract: An off-board navigation system including, in a vehicle, a user interface, a geographic location detection apparatus, for generating a position data representing the position of the vehicle, and a wireless transmitter/receiver, and call receiving center remote from the vehicle. The call receiving center includes a wireless transmitter/receiver, a roadmap database, and a processor for calculating road routes based on the roadmap database. A user in the vehicle transmits a route request to the call receiving center. The vehicle position data is communicated from the vehicle to the call receiving center. The call receiving center calculates a route based on the route request and the vehicle position data received from the vehicle over the wireless data. The route is transmitted from the call receiving center to the vehicle.