Abstract: A method and system are disclosed to account for improving the accuracy of a calculated position of a vehicle in transit. Position measurement values for different locations are collected. Position measurement values of a plurality of vehicles are collected such that the method is particularly effective in instances, in which dense traffic makes it desirable to determine the position of the vehicles in a particularly accurate fashion. Each position measurement value is allocated to a section of a traffic route. A systematic deviation is estimated based on a comparison of the position measurement values allocated to the section with a reference position. Finally, a position value measured along the traffic route section by the systematic deviation is corrected.