Abstract: A system for controlling vehicle movements on a road network. The system provides for identification data and road information transmission between a vehicle and a traffic information center. The road network is so arranged as to be entered into the system in such a way that it is regarded as a data network, and each vehicle that is intended to make use of the road network is logged in for travelling on the road network, and each vehicle identifies itself at the time of logging in, the identity is either dynamic or static. Information relating to the intended destination is transmitted for each vehicle to the traffic information center, and information about the position and the speed of the vehicle is also reported at regular intervals to the aforementioned traffic information center, so that overall control of the traffic is achieved.