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.
Zürich Hardbrücke railway station
The station is a major node in the Zürich S-Bahn system, served by lines S3, S5, S6, S7, S9, S11, S12, S15 and S16. All trains from Hardbrücke station operate via low-level platforms 41-44 at Hauptbahnhof, continuing to Stadelhofen station through the Hirschengraben Tunnel. They provide, for most of the day, 16 trains per hour (tph) to or from these central Zürich stations.