1. A method for generating an approximation of vehicle position for use by a driver assistance application, comprising: performing a map matching analysis to determine a closest point to a vehicle position on a polyline representation of a road; identifying a Bezier curve in a geographic database corresponding to the closest point to the vehicle on the polyline; projecting the closest point onto the identified Bezier curve to obtain an approximation of the vehicle position; and providing the approximation of the vehicle position to at least one driver assistance application.