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(Redirected from U-bahn)
The Vienna U-Bahn in Austria is also a metro system.
Stadtbahn (Premetro, Light Rail)
- Bielefeld Stadtbahn
- Bonn Stadtbahn
- Cologne Stadtbahn
- Hanover Stadtbahn
- Rhine-Ruhr Stadtbahn and its subnetworks
- Stuttgart Stadtbahn
- For the Karlsruhe Stadtbahn serving tram sections in Heilbronn, Karlsruhe, Bad Wildbad, Wörth am Rhein and further suburbs of Karlsruhe, a tunnel is being built along the main shopping street in the city centre of Karlsruhe. 
- The Kassel tram-train system is called RegioTram including tram section in Kassel and its suburbs. It includes a short tunnel next to Kassel Hauptbahnhof RegioTram platforms which are on the ramp replacing former main railway platforms.
U-Straßenbahn (Sub-Surface Tram)
Sub-surface tram systems are called U-Straßenbahn in Germany where running underground ("U").
- "Die Kombilösung Karlsruhe (engl.: the Karlsruhe combi-solution)". Karlsruher Schieneninfrastruktur-Gesellschaft (in German). Retrieved 2011-04-07.