The Hirschengraben Tunnel is a railway tunnel in the Swiss city of Zürich. The tunnel runs from the western approaches to Zürich Hauptbahnhof railway station, east under the station, the river Limmat

The Zurich–Winterthur railway is Switzerland's busiest railway line. Opened in 1855, it runs from Zürich Hauptbahnhof to Winterthur via several routes. It is a bottleneck in Swiss rail transport. Prac