The Platform-Train Interface (PTI) is designed to streamline the process of modelling transport services in LEGION. It can be used for boarding and alighting of any transport mode, including trains at platforms, or trams and buses at stops. Instead of the user manually entering combinations of Entrances, Exits, Waiting Zones, Arrival Profiles and other objects, users may now specify a much smaller number of high level objects, which incorporate the desired behaviour, automatically. The feature is designed to simplify workflow and reduce workload and possibilities for error.