| − | '''Gotthard Base Tunnel''' runs 57 kilometers (around 35 miles) through the [[Swiss Alps]], and it opened on June 1, 2016.<ref>[http://www.washingtontimes.com/news/2010/oct/15/joyous-swiss-celebrate-longest-tunnel-breakthrough/ Joyous Swiss celebrate longest tunnel]</ref><ref>[http://www.bbc.com/news/world-europe-36423250 Gotthard tunnel: World's longest and deepest rail tunnel opens in Switzerland]. ''BBC''. June 1, 2016. Retrieved September 9, 2016.</ref> As of its opening, it is the longest tunnel in the world. The tunnel was a part of the [[AlpTransit]] program, which sought to improve rail travel speeds from the north to south and advance European integration.<ref>[https://www.alptransit-portal.ch/en/overview/ AlpTransit: Overview]. ''alptransit-portal.ch''. Retrieved September 9, 2016.</ref><ref>Barrow, Keith (June 15, 2016). [http://www.railjournal.com/index.php/europe/gotthard-base-tunnel-the-final-straight.html Gotthard Base Tunnel: the final straight]. ''railjournal.com''. Retrieved September 9, 2016.</ref> | + | '''Gotthard Base Tunnel''' runs 57 kilometers (around 35 miles) through the [[Swiss Alps]], and it opened on June 1, 2016.<ref>[http://www.washingtontimes.com/news/2010/oct/15/joyous-swiss-celebrate-longest-tunnel-breakthrough/ Joyous Swiss celebrate longest tunnel breakthrough], ''The Washington Times''(from the Associated Press), October 15, 2016.</ref><ref>[http://www.bbc.com/news/world-europe-36423250 Gotthard tunnel: World's longest and deepest rail tunnel opens in Switzerland]. ''BBC''. June 1, 2016. Retrieved September 9, 2016.</ref> As of its opening, it is the longest tunnel in the world. The tunnel was a part of the [[AlpTransit]] program, which sought to improve rail travel speeds from the north to south and advance European integration.<ref>[https://www.alptransit-portal.ch/en/overview/ AlpTransit: Overview]. ''alptransit-portal.ch''. Retrieved September 9, 2016.</ref><ref>Barrow, Keith (June 15, 2016). [http://www.railjournal.com/index.php/europe/gotthard-base-tunnel-the-final-straight.html Gotthard Base Tunnel: the final straight]. ''railjournal.com''. Retrieved September 9, 2016.</ref> |
| | The Gotthard Base Tunnel started normal operations on December 11, 2016.<ref>[http://www.swissinfo.ch/eng/hurtling-into-history_first-full-day-of-service-for-gotthard-rail-tunnel/42753636 First full day of service for Gotthard rail tunnel]. ''Swissinfo''. December 11, 2016. Retrieved December 27, 2016.</ref> | | The Gotthard Base Tunnel started normal operations on December 11, 2016.<ref>[http://www.swissinfo.ch/eng/hurtling-into-history_first-full-day-of-service-for-gotthard-rail-tunnel/42753636 First full day of service for Gotthard rail tunnel]. ''Swissinfo''. December 11, 2016. Retrieved December 27, 2016.</ref> |