This paper describes the work done by the TNO Institute of Spatial Organization (INRO-TNO) into the dynamic traffic management measures which can be used in the National Model System (NMS). These dynamic traffic management measures can be grouped as follows: (1) measures for route choice behaviour; (2) measures for car speed and following distance; (3) measures for merging on highways; and (4) measures for urban traffic management. Several methods are already available for each of these groups. They can be divided into microscopic and macroscopic methods. Dynamic traffic management measures typically operate on the basis of real time information and have an impact on dynamic processes. Therefore the use of dynamic instruments is strongly recommended. The assignment model in the NMS is not a dynamic model. This means that the traffic management measures cannot be simulated in detail. However, by making some extra assumptions the NMS can be used to forecast the effects of dynamic traffic management measures.
Samenvatting