The Appenzellerbahn (AB), which opened its line from St. Gallen Winkeln to Urnäsch via Herisau in 1875, with an extension from Urnäsch to Appenzell in 1886. In 1913, the line from Herisau to Winkeln was replaced by a new line to Gossau.[3]
The Säntisbahn, which opened between Appenzell and Wasserauen in 1912.
The Appenzellerbahn and Santisbahn merged in 1947, retaining the Appenzellerbahn (AB) identity. The St. Gallen–Gais–Appenzell-Bahn and Altstätten-Gais-Bahn merged in 1948, under the name St. Gallen–Gais–Appenzell–Altstätten-Bahn (SGA).[2]
The Appenzeller Bahnen company was formed in 1988, with the merger of the Appenzellerbahn and the St. Gallen–Gais–Appenzell–Altstätten-Bahn. In 2006, the Appenzeller Bahnen company merged with the Rorschach–Heiden-Bergbahn, the Rheineck–Walzenhausen-Bergbahn and the Trogenerbahn companies. In legal terms, this merger took the form of the Appenzeller Bahnen company acquiring the other companies.[2]
The St. Gallen–Gais–Appenzell, Gossau–Appenzell–Wasserauen and Altstätten–Gais lines form a connected network of 1,000 mm or 3 ft 3+3⁄8 inmetre gauge lines, all electrified at 1500 VDC. Until 2018, the St. Gallen–Trogen line was also of metre gauge, but ran independently.
From 2016 to 2018, the Appenzellerbahnen undertook a large construction project to connect the Appenzell-St. Gallen and St. Gallen-Trogen lines. The three points of incompatibility were electrification (the St. Gallen-Trogen line was 1000 V DC with a brief stretch at 600 V DC shared with the St. Gallen trolleybus system), different (but physically adjacent) termini in St. Gallen, and maximal grades (the rack railway approach to St. Gallen from Appenzell was too steep for adhesion-based St. Gallen-Trogen rolling stock). So the new project re-electrified the St. Gallen-Trogen line at 1500 V DC and constructed a new tunnel through St. Gallen. The old alignment through St. Gallen closed in April 2018, and the system began through-running in October of the same year.[7][8]
The Rheineck–Walzenhausen and Rorschach–Heiden lines are geographically separate from the rest of the network, and are of respectively 1,200 mm (3 ft 11+1⁄4 in) and standard (1,435 mm or 4 ft 8+1⁄2 in) gauges. The Altstaetten–Gais, Rheineck–Walzenhausen and Rorschach–Heiden lines all have rack railway sections, whilst the Gossau–Appenzell–Wasserauen and Appenzell–St. Gallen–Trogen lines are adhesion only.[5][6] Frauenfeld-Wil was cooperating closely, but legally distinct from 2003. It is not connected by tracks. 2021 they were taken over.
The company also operates a bus service from Teufen, on the St. Gallen–Gais–Appenzell line, to Speicher, on the St. Gallen–Trogen line. Night bus services are operated over the routes of the St. Gallen–Gais–Appenzell and St. Gallen–Trogen lines.[5]
As of December 2023[update], Appenzell Railways (AB) operates eight regional train services that run on its own railway network. Trains operate as S-Bahn services (numbered 15, 20‒26 with "S" prefix) for St. Gallen S-Bahn. In addition, AB also operate bus line 190.[9]
Operates over the metre (3 ft 3+3⁄8 in) gauge Appenzell–St. Gallen–Trogen line. Rush-hour service, calls between Gais and St. Gallen only at Bühler, Teufen AR and Niederteufen
^Thomas Baumgartner, Lukas Regli: Die Bedeutung der Durchmesserlinie Appenzell – St. Gallen – Trogen für die Appenzeller Bahnen (in German). In: Schweizer Eisenbahn-Revue. No. 11/2013. Minirex, ISSN1022-7113, pp. 604–606.
BDeh 3/6 of AB operating as S25 service between Rorschach Hafen and Heiden (with additional open-window coaches during good weather conditions)
BDeh 4/4 of AB operating as S24 service between Altstätten Stadt and Gais (with additional open window coaches during good weather conditions)
Bicycle transport of S24 service (only during good weather conditions)
Historic vehicles of AB
Former Ge 4/4 locomotive of AB push-pulling coaches in 2006
Former BDe 4/4 locomotive of AB
Former Be 4/8 of AB in St. Gallen on the St. Gallen–Trogen railway line in 2017
CHF41.9 million (2012)
.jpg)
.jpg)
.jpg)
