to the modes of choice these influential variables may be specific to the vehicle the environment or may even include any combination of these influential variables to the extent that they are present during the operation of vehicle 2 among the vehicle specific influential variables taken into account may be for example parameters of vehicle 2 such as the maximum possible transverse acceleration the current load of the vehicle the state of the tires or the like among the environmental influential variables taken into account may be for example the enlargement or maintenance state of the roadway that includes travel lane 1 in the case of the environment specific influential variables weather and visibility conditions may be taken into consideration the assumption is that appropriate sensors are present to record these influential variables a block diagram of a driver assistance system 50 suitable for carrying out the method according to the present invention is shown in fig5 driver assistance system 50 includes for instance a functional module 53 ldw lane departure warning a functional module 55 lks lane keeping support and perhaps additionally a functional module 52 lca lane change aid furthermore at least one video sensor 57 and one radar sensor 51 may be provided at their output side the functional modules mentioned are connected to a functional module coordination 54 with the aid of.