A method for the assisted, partially automated, highly automated, fully automated or driverless driving of a motorized transportation vehicle including at least one control unit for planning the navigation and trajectory of an assisted, partially automated, highly automated, fully automated or driverless journey of the motorized transportation vehicle and multiple subsystems, wherein the subsystems implement transportation vehicle movement dynamics requirements of the control unit or supply environmental data, wherein at least one subsystem is assigned a monitoring function by which the functionality of the subsystem is determined, wherein the monitoring function transmits a currently possible performance capability to the control unit which adapts the planning of the navigation and trajectory in accordance with the transmitted performance capability so that, despite a reduced performance capability, the assisted, partially automated, highly automated, fully automated or driverless journey can be continued. Also disclosed is such a device