Abstract: Position points of a vehicle are stored in a database as a vehicle travels. New position points are obtained and assigned confidence levels based on how they are obtained. A new position point can replace the oldest, unprotected position point if the confidence level of the new position point is not greater than at least one of the protected position points. A new position point can replace one of the protected position points if the confidence level of the new position point is greater than the protected position point. A new position point can replace the oldest, protected position point if the confidence level of the new position point is equal to or greater than the oldest, protected position point. The position points in the database can be transmitted to a remote service provider.

Abstract: Systems for providing limited-destination navigational guidance to a user when driving a vehicle are disclosed. In one embodiment, the system comprises a memory pre-configured to store location information for a limited number of desired destinations. The memory is advantageously pre-configured to store a limited number of destinations before it the user even enters the vehicle. Methods for pre-programming a vehicle navigation system are also disclosed. Location information is received for a limited number of desired destinations as specified by a user. For each of the desired destinations, a user input interface is linked with the desired destination, prior to the user's entering the vehicle. Hence, rather than manually entering a destination address, a user may press one button and automatically receive navigational instructions for driving to the user's pre-designated destination.