Swiss Federal Railways (SBB-CFF-FFS) is the largest railway company in Switzerland and handles the majority of national and international traffic. It operates the main east-west track in the central valley area and the north-south routes through the Alps via the Gotthard tunnel (Lugano to Zurich line) and the Simplon tunnel (Domodossola to Lausanne-Bern-Geneva line).
Total route length: 3,000 km