World’s longest railway tunnel The Gotthard Base Tunnel, a 57km rail link under the Swiss Alps, allows trains to travel at up to 250km/h, reducing travel time across Europe Gotthard Base Tunnel Ceneri Base Tunnel: To open in 2020 SWITZERLAND FRANCE ITALY GERMANY AUSTRIA ALPS Bern Zurich Milan Erstfeld: Northern portal Amsteg Sedrun Faido Bodio: Southern portal Existing rail line 40km 25 miles Altitude (m) 3,000 2,000 1,000 Erstfeld Amsteg Sedrun Faido Bodio Gotthard Base Tunnel Consists of two parallel single-track tubes, linked by emergency escape routes Cost: $12bn Faido station Sedrun station Sedrun Lift to ski resort Erstfeld portal Emergency station Emergency station Faido access tunnel Cable tunnel Bodio portal Amsteg access tunnel Tunnel arch: 9.5m diameter 40m WORLD’S LONGEST TRAIN TUNNELS Kilometres Gotthard Base Tunnel, Switzerland Completion 2016 57 Brenner Base Tunnel, Austria-Italy Scheduled 2026 55 Seikan Tunnel, Japan* 1988 53.8 Channel Tunnel, France-UK* 1994 50 Lotschberg Base Tunnel, Switz. 2007 34.6 *Undersea tunnel Sources: Alptransit, Gottardo2016