A common description is presented in order to describe saturation phenomena in a synopsis for all essential transportation modes. For traffic control and to suppress oversaturation effects a load dropping strategy can be derived which transfers the most advanced approaches from air traffic control to railway and road traffic. Dynamic block control, ramp metering, rerouting and adaptive speed control follow the same principles and can be designed in a common manner. Recurrent and non-recurrent congestion phenomena can be distinguished each of which forces its own traffic management strategy. An outline of a traffic flow model that shows the derived commonalities is given with respect to traffic data collection and implementation of traffic control strategies.
Abstract