The Sihltal Zürich Uetliberg Bahn (SZU) operates two highly specialized commuter lines in the Zurich S-Bahn network. The system features standard-gauge trains on the Sihltal line and a unique, offset-overhead line setup for the steep, specialized Uetliberg mountain railway line.
SZU is a train operator serving Switzerland. View trains operated by SZU on Rail Radar, including real-time departures, arrivals, delays, and platform information. Commuter services available.