the station is a major node in the zürich s-bahn system, served by lines , , , , , , , , , , and . 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.