Feldkirch–Buchs railway

The Feldkirch–Buchs railway is a 18.52 km electrified single track railway line that links Austria and Switzerland passing through Liechtenstein. Owned by the Austrian Federal Railways (ÖBB), it is the only railway line in Liechtenstein.

History
The line opened in 1872 between Switzerland and the Austro-Hungarian Empire, during the opening period of the Vorarlberg Railway, and was electrified in 1926. As of the 2023 timetable change, the line is served by international trains (Railjet) that run non-stop between Feldkirch and Buchs, and regional trains of Vorarlberg S-Bahn that stop at all intermediate stations in Austria and Liechtenstein.

In June 2008, the Canton of St. Gallen, the Federal State of Vorarlberg, and the Principality of Liechtenstein signed an agreement for a project to upgrade the line (and the surrounding ones) and to increase the rail traffic. The project, named S-Bahn Liechtenstein was approved by Liechtenstein and Austria in a Letter of Intent signed in April 2020 and under that plan, it was to be fully realised by 2027 and will cost an estimated €187 million. That plan was however rejected by 62.3% of Liechtenstein voters in a referendum on 30 August 2020.