The device has a communication system (3) integrated with a motor car (8) for wireless data transfer, which is identified using an identification number of the car, where the data is transmitted from the car to a receiver. A stationary database system (5) ...

The method involves recording positions of a vehicle on paths (11, 12) by a position measuring device. The recorded vehicle positions are associated to a sequence of road segments (S2, S3) of a digital road map. Distance is determined from segment lengths ...