page_title: Appenzell–St. Gallen–Trogen railway
section_title: Until 2018
hierarchical_section_title: Appenzell–St. Gallen–Trogen railway / Operations / Until 2018
caption_attribution_description: Deutsch: Trogenerbahn der Appenzeller Bahnen zwischen St Gallen und Trogen (Schweiz). Zugkreuzung an der Haltestelle "Schwarzer Bären".
context_page_description: The Appenzell–St. Gallen–Trogen railway, also known as the Durchmesserlinie, is a metre gauge overland tramway in the Swiss cantons of Appenzell Innerrhoden and Ausserrhoden and the city of St. Gallen. It is the steepest adhesion railway in Switzerland with a gradient of up to 8.0% and forms part of the network of the Appenzell Railways and the St. Gallen S-Bahn. The line's two branches were completed in sections between 1889 and 1904 by the St. Gallen-Gais-Appenzell-Altstätten Railway and the Trogen Railway. The two lines were connected by the AB with a cross-city route in 2018.
context_section_description: Before the opening of the Ruckhalde Tunnel, the St. Gallen–Appenzell line was operated as line S 22 of the St. Gallen S-Bahn. The trains ran every half hour and consisted of a BDeh 4/4 motor car, an intermediate car and a control car. Every second train had a low-floor control car. In the working day peak an express service ran from Appenzell to St. Gallen in the morning and returned in the evening peak, taking 39 minutes over the whole line rather than the usual 43 minutes. Two morning and several evening services were replaced by bus services.
  The St. Gallen–Trogen line was operated as line S 21 during the day at half-hour intervals with four Be 4/8 services operated as two additional round trips during the peaks, creating a service every quarter of an hour. With the exception of Speicher, all intermediate stations are request stops. Scheduled train crossing occur in Schwarzer Bären station, but in the peak there are also crossings at Speicher and Spisertor. The Trogen line handled freight until mid-1991, largely with freight wagons attached to passenger trains, and until 2007, there were postal consignments in freight wagons.
caption: Be 4/8 sets crossing in Schwarzer Bären station (2012)
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