S23 (ZVV)

S23 (ZVV)
Refurbished Re 420 (LION) locomotives, head and tail, and double-deck carriages as S23 service in Romanshorn
Overview
Status	Operational
Termini	Zürich HB Winterthur/Romanshorn
Stations	8
Website	https://www.sbb.ch/en (in English)
Service
Type	S-Bahn
System	Zürich S-Bahn
Operator(s)	Swiss Federal Railways
Rolling stock	Re 420 (LION) locomotives and double-deck passenger carriages
Technical
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Route map Legend time (h) S3 S5 S6 S7 S9 S11 S12 S15 S16 S21 S42 to Zürich Hardbrücke S24 to Zürich Wipkingen S14 S19 to Zürich Altstetten S2 S8 S24 S25 to Zürich Wiedikon S4 S10 from Zürich HB SZU to Zürich Selnau 0:00 Zürich HB[a] S2 S8 S14 S19 to Zürich Oerlikon Hirschengraben Tunnel (2.15 km) 0:03 Zürich Stadelhofen S3 S5 S6 S7 S9 S11 S12 S15 S16 S18 S20 S18 from Zürich Stadelhofen FB to Esslingen S6 S7 S16 S20 to Zürich Tiefenbrunnen Zürichberg Tunnel (4.97 km) S8 S14 S19 to Wallisellen S5 S9 S14 S15 to Uster S41 to Bülach 0:24 0:25 Winterthur S7 S8 S29 S33 S30 S35 S41 S12 S24 S33 to Andelfingen S11 S12 S26 S35 to Winterthur Grüze S11 S29 to Seuzach S15 to Wil SG 0:37 Frauenfeld S15 S24 S30 S10 to Wil SG 0:49 Weinfelden S5 S7 S10 S14 S44 S24 S30 S14 S44 to Kreuzlingen 0:55 Sulgen S5 S10 S5 to Gossau SG 1:03 Amriswil S7 S10 RE1 S1 to St. Gallen S7 to Rorschach 1:09 Romanshorn S1 S7 S10 RE1 S1 to Kreuzlingen Hafen [1][2] This diagram: view talk edit ^ Zürich HB tracks (Gleis) from left to right: 21–22 (SZU) / 31–34 / 3–18 (surface) / 41–44.

The S23 is a regional railway line of the Zürich S-Bahn that operates only during rush hour.^[2]

At Zürich HB, trains of the S23 service usually depart from underground tracks (Gleis) 41–44 (Museumstrasse station).

• S23 Zürich HB–Zürich Stadelhofen–Winterthur–Frauenfeld–Romanshorn

The service calls only at major stations between Zürich (canton of Zürich) and Romanshorn (Canton of Thurgau) on the shores of Lake Constance. Only some trains operate between Winterthur and Romanshorn, while others have Winterthur as their terminus.^[3]

• Zürich Hauptbahnhof
• Stadelhofen
• Winterthur
• Frauenfeld
• Weinfelden
• Sulgen
• Amriswil
• Romanshorn

The S23 operates during peak-hours only: five trains from Winterthur to Zürich HB in the morning (two originate in Romanshorn), and four trains from Zürich HB to Winterthur in the evenings (with two continuing to Romanshorn). The journey between Zürich and Winterthur, including the sole intermediate stop in Stadelhofen, requires 24 minutes. Zürich to Romanshorn requires 69 minutes.^[4]

Services are operated by two (head and tail) refurbished Re 420 (LION) locomotives pushing or pulling double-deck passenger carriages.^[5]

The S23 was introduced in the timetable revision of December 2015 as a peak-hour service between Zürich HB and Winterthur. The S23 supplemented the S11, then a peak-hour service between Zürich Hardbrücke and Winterthur, and the S12, which operated on a hourly schedule and was "notorious" for overcrowding. Some S23 services continued to Romanshorn.^[6]

At the time of its introduction the S23 was the only service on the Zürich S-Bahn whose carriages were not air-conditioned, leading to complaints from passengers during the summer months.^[6]

• Rail transport in Switzerland
• Trams in Zürich

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