Method for route planning

Method pertaining to route planning for a vehicle, comprising reading in location information comprising the route's starting point and final destination, reading in time information comprising starting time and/or desired time of arrival at final destination, reading in road information about sections of road between starting point and final destination, reading in vehicle-specific information. The method further comprises reading in driving time information comprising driving and rest times during a driving shift as prescribed by the regulations for a driver's driving times, calculating an optimum route for the vehicle on the basis of said information read in, and presenting driving instructions to the driver for following the calculated route.