Zürich Seebach railway station
Trains on the S6 provide a half-hourly connection to Zürich Hauptbahnhof station, taking 12 minutes for the journey via the southern connector and Oerlikon station. In the opposite direction, S6 trains continue to Baden station, taking 28 minutes for the journey. The station also sees significant through freight traffic, most of which takes the Furttal line in order to avoid passing through central Zürich, using the northern connector onto or off the Zürich–Winterthur line.
Lake Zürich left-bank railway
The left-bank railway opened in 1875 and forms part of the Zürich–Chur main line. It is long, standard gauge, double track and electrified at supplied by overhead line. Between Zürich and Thalwil, the line originally shared its tracks with the Zürich–Lucerne main line, although many through trains on this stretch now use the Zimmerberg Base Tunnel rather than the lakeside line.