Vehicle routing and guidance system

A vehicle routing and guidance system comprising

• a vehicle-based navigation system (35) located in a vehicle, said navigation system (35) including an input device (38) for entry of at least one destination (B) to which the vehicle is to travel, means for informing a driver of the vehicle of a calculated route (16) to said at least one destination (B) and a self-locating means for determining a location of the vehicle;
• a central server (12) located outside of said vehicle, said central server including means for calculating said calculated route (16) to said at least one destination (B), means for dividing said calculated route (16) into separate route sections (34), means for selecting individual ones of said route sections (34) one after the other for transmission to said vehicle according to said location of said vehicle during travel to said at least one destination (B) and means for recalculating remaining ones of said route sections (34) over which said vehicle has not traveled during travel to said at least one destination according to updated traffic information supplied to said central server (12);
• and
• transmitter and receiver means for at least temporarily establishing communication between the central server (12) and the navigation system (35), said transmitter and said receiver means including means for transmitting said route sections (34) individually and separately to said navigation system so that said calculated route is transmitted in a piecewise manner to said navigation system.