Originally the S14 started in the terminal platforms at Zürich Hauptbahnhof, and ran via the
Wipkingen Tunnel to Oerlikon and on to Hinwil. With the completion of the Altstetten–Zürich–Oerlikon cross-city line in 2015, it was diverted at Oerlikon to use the Weinberg Tunnel and the low-level through platforms of the Hauptbahnhof, before being extended to
Affoltern am Albis to replace the
S15 which was in turn diverted elsewhere. This diversion and extension means that the line no longer serves the railway stations of
Wipkingen (on the original S14 route) and doesn't serve
Hardbrücke (on the original S15 route). == See also ==