1. A method intended for position determination of a motor vehicle, the method comprising the acts of: satellite based determining of a geographical position of the motor vehicle; providing digital road map data, which includes at least information about road segments in a vicinity of the geographical position; and carrying out a first determining act for determining at least a first road segment, on which the motor vehicle is located with high probability, wherein the first determining act is based on a matching of the geographical position with the digital road map data; retrieving traffic lane data, regarding at least a number of traffic lanes for the first road segment, from a road map database; determining a traffic lane, in which the motor vehicle is currently traveling, by use of at least the traffic lane data; and carrying out a second determining act for determining a second road segment, on which the motor vehicle is located with high probability, wherein the second determining act is based on a matching of the geographical position with the digital road map data and at least the traffic lane in which the vehicle is traveling.