Vehicle information system

Software recorded on a computer readable medium for causing an in-vehicle computer to perform the functions comprising:

• receiving at a vehicle a planned route to a destination location from a server;
• storing the planned route;
• providing instructions to an operator of the vehicle according to the stored planned route;
• tracking a location of the vehicle;
• detecting whether the vehicle has deviated from the planned route;
• and
• if the vehicle is detected to have deviated from the planned route, planning a new route to the destination location using a map of a road network stored in a storage of the vehicle.

A vehicle navigation system comprising:

• a server, including a route planner;
• a plurality of in-vehicle systems, each including storage for an in-vehicle map database, and storage for a planned route;
• a wireless communication system for passing data between the server and each of the in-vehicle systems;
• wherein each of the in-vehicle systems includes a guidance system for accepting a destination specification,
• validating the destination specification using the in-vehicle map database,
• sending the validated destination specification to the server over the wireless communication system,
• receiving a planned route to the destination over the wireless communication system, and guiding the operator to the destination;
• and
• wherein each of the in-vehicle systems further includes an autonomous route replanning system for detecting whether the vehicle has deviated from the planned route, and if the vehicle is detected to have deviated from the planned route, planning a new route to the destination using the in-vehicle map database.