The Lausanne Métro line opened in 2008 as Switzerland’s first fully automated metro line was m2, usually written M2 in English references.
M2 began passenger service on 27 October 2008 in Lausanne, in the canton of Vaud. It runs between Ouchy on Lake Geneva and Les Croisettes in Epalinges, crossing the city from south to north. Unlike Lausanne’s M1, which is generally classified as light rail, M2 is a grade-separated rapid-transit line with driverless operation.
The line is technically distinctive because it uses rubber-tyred trains and was designed for Lausanne’s unusually steep terrain. Its route incorporates the former Lausanne–Ouchy railway, whose origins reach back to an 1877 funicular. That older railway was closed and rebuilt as part of the modern automated line.
The alternatives refer to different services or institutions: M1 is Lausanne’s light-rail line, LEB is a regional railway serving the Lausanne area, and T1 is not the city’s automated metro line. M2 also helped make Lausanne the world’s smallest city with a full metro system when it opened.