method for determining geometric data for parking processes of vehicles , wherein the lateral distance between the vehicle and a curb is measured several times successively by means of a distance sensor attached to the vehicle as the vehicle is driven by the parking space . the angle of the longitudinal axis of a vehicle and the curb is ascertained by determining a sideways movement angle between the present longitudinal direction of the vehicle and a preset longitudinal direction , which angle results from the sideways movement of the vehicle as it is driven along , by determining a curb angle between the preset longitudinal direction and the curb , which angle results from the course of the curb contour , and by determining the angle between the present longitudinal axis of the vehicle and the curb by adding the angle of sideways movement and the curb angle .