Samenvatting
The TRANSYT family of programs continues to be one of, if not the most, widely used computer programs in the world for traffic signal timing and traffic flow analysis. In the past this program was excellent for modelling protected or unopposed traffic movements from separate lanes; however, it did not have the capability to model several different movements, for example, unprotected left turns and through movements from a shared lane. A project to incorporate a model to explicitly deal with this condition in TRANSYT-7F is described. The model is based on the 1985 Highway Capacity Manual. Its implementation in TRANSYT-7F and the user interface are reviewed.