The S24 is a regional railway line of the Zürich S-Bahn of the Zürcher Verkehrsverbund (ZVV), Zürich transportation network. The line was significantly extended in June 2014, and has subsumed the previous S21 line that previously provided service over part of its extended route.
The line runs from Zurich Oerlikon to Zug via Zürich Hauptbahnhof and Thalwil.
Before June 2014, S24 referred to a shorter line, running only between Zürich Hauptbahnhof and Horgen Oberdorf. It was extended at its southern end to Zug in replacement of the now discontinued S21 line. At its northern end, it was extended to Zurich Oerlikon in order to provide service to Zurich Wipkingen station, which lost its previous service by lines S2, S8 and S14 when they were diverted to use the Weinberg Tunnel. As such, the S24 is now the only S-Bahn line that reverses direction in the Hauptbahnhof rather than using one of the station's underground through platforms.
The ZVV (German abbreviation for Zürcher Verkehrsverbund, translated into English as Zürich Transport Network or Zürich Traffic Network) is a public transportation fare network system, combining virtually all kind of public transport means (rail, bus, tram, trolleybus, lake boat and cable car and the like) and services in the canton of Zürich (including Rapperswil-Jona and Pfäffikon SZ and some other spots), and integrating them into one single fare network and coordinated timetables. The fares are not based on particular lines and connections from A to B, but on the number of zones ones travels through for a specified period of time.
Established in May 1990, the ZVV was initially an elaborate web of railway lines. They were prefixed with the letter S (S-Bahn). S-Lines 1 through 43 (with some lines missing) now form part of the S-Bahn Network. A proof-of-payment fare system is in force on all S-Bahn trains; there are no fare gates, but those without a valid ticket face a minimum fine of CHF 100.
S24 may refer to: