City-suburban railway
City-Umland-Bahn called
- as Stadt-Umland-Bahn München (SUB), a planned local transport system in the Munich transport and tariff association
- as the city-surrounding railway Nuremberg – Erlangen – Herzogenaurach (StUB), a planned local transport system between Nuremberg, Erlangen and Herzogenaurach and the surrounding area
- a planned local transport system in Regensburg and the surrounding area as the Regensburg suburban railway
- generally, the tram-train concept