At Zürich HB, trains of the S14 service usually depart from underground tracks (Gleis) 31–34 (Löwenstrasse station).
It serves the following stations:[4][5] The service uses the Altstetten–Zürich–Oerlikon cross-city line, opened in 2015 and including the Weinberg Tunnel, between Altstetten and Oerlikon.
Initially, all services were operated by Re 450 class locomotives pushing or pulling double-deck passenger carriages.
[6] As of the December 2022 timetable change,[update] all services are operated with Re 450 locomotives and double-deck coaches.
[5] Originally the S14 started in the terminal platforms at Zürich Hauptbahnhof, and ran via the Wipkingen Tunnel to Oerlikon and on to Hinwil.