Method for coordinating traffic involving several motor vehicles (12, 13) within a predetermined infrastructure area by a central server device, whereby the central server device: - repeatedly receives a respective current driving status and a respective current driving intention of the motor vehicle (12, 13) from the motor vehicles (12, 13) and - for each of the motor vehicles (12, 13), a current coordination result is determined which indicates where the motor vehicle (12, 13) is prohibited, based on its current driving status its driving intention according to a predetermined traffic control on the basis of a respective driving status and/or a respective driving intention of at least one other of the motor vehicles (12, 13) and, depending on the coordination result, a respective current permitted behaviour is determined for each of the motor vehicles (12, 13), and - the respectively determined behaviour currently permitted for the respective motor vehicle (12, 13) in the infrastructure area is signalled to the motor vehicles (12, 13) as a coordination message for independent adjustment of its driving intention, whereby - the server device additionally detects the current driving status of at least one of the motor vehicles (12, 13), by means of a monitoring sensor system of the infrastructure area external to the vehicle characterised in that - the server device uses a shared digital map of the surroundings with at least one of the motor vehicles (12, 13), in which a copy of the digital map of the surroundings is provided in the server device and in the motor vehicle (12, 13) or the server device, and the motor vehicle (12, 13) accesses a common representation of the map of the surroundings, and - the coordination message for describing the permitted behaviour contains at least one reference to the map of the surroundings, whereby the permitted behaviour is signalled in each case by means of the coordination message to the motor vehicle (12, 13) in which at least one area currently freely accessible by the motor vehicle (12, 13) and/or at least one area prohibited to the motor vehicle is signalled and to determine the currently permitted behaviour, at least part of the infrastructure area is divided into surface segments (28, 28'), each of which has a size in a range from 0.5 m 2 to 2 m 2, and the server device sets a respective drivability status for each area segment (28, 28') as a function of the current coordination result, to one of the two values: "Driving permitted" and "Driving prohibited", and by means of the coordination message signals a currently set drivability status of at least one of the surface segments (28, 28') to the respective motor vehicle (12, 13), so that based on the coordination message, an autopilot device of the respective motor vehicle (12, 13) independently reschedules a planned route and plans an alternative, modified route on freely drivable surface segments and drives on it, and that the server device checks whether there is a predetermined safety issue and, if a safety issue is detected, triggers a predetermined protective measure, whereby the server device recognises as a safety problem that the current driving status received from the motor vehicle (12, 13) and the self-recorded driving status of the motor vehicle (12, 13) shows a deviation that is greater than a predetermined minimum value, whereby a malfunction in the vehicle sensor system of the motor vehicle (12, 13) is compensated or counteracted by means of the protective measure. - repeatedly receives a respective current driving status and a respective current driving intention of the motor vehicle (12, 13) from the motor vehicles (12, 13) and - for each of the motor vehicles (12, 13), a current coordination result is determined which indicates where the motor vehicle (12, 13) is prohibited, based on its current driving status its driving intention according to a predetermined traffic control on the basis of a respective driving status and/or a respective driving intention of at least one other of the motor vehicles (12, 13) and, depending on the coordination result, a respective current permitted behaviour is determined for each of the motor vehicles (12, 13), and - the respectively determined behaviour currently permitted for the respective motor vehicle (12, 13) in the infrastructure area is signalled to the motor vehicles (12, 13) as a coordination message for independent adjustment of its driving intention, whereby - the server device additionally detects the current driving status of at least one of the motor vehicles (12, 13), by means of a monitoring sensor system of the infrastructure area external to the vehicle - the server device uses a shared digital map of the surroundings with at least one of the motor vehicles (12, 13), in which a copy of the digital map of the surroundings is provided in the server device and in the motor vehicle (12, 13) or the server device, and the motor vehicle (12, 13) accesses a common representation of the map of the surroundings, and - the coordination message for describing the permitted behaviour contains at least one reference to the map of the surroundings, whereby the permitted behaviour is signalled in each case by means of the coordination message to the motor vehicle (12, 13) in which at least one area currently freely accessible by the motor vehicle (12, 13) and/or at least one area prohibited to the motor vehicle is signalled and