With its 57 km, the Gotthard base tunnel is the longest railway tunnel in the world, and the core of the new transalpine railway axis AlpTransit. The twin single track high speed rail tunnels run between Erstfeld and Bodio in Switzerland.
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China???????? has the most number of tunnels in the world. There are 16229 tunnels in China. The largest tunnel in China is Bohai Strait Tunnel. After China, Japan???????? has the most number of tunnels in the world.
The Trans-Siberian Railway, historically known as the Great Siberian Route and often shortened to Transsib, is a large railway system that connects European Russia to the Russian Far East. Spanning a length of over 9,289 kilometers (5,772 miles), it is the longest railway line in the world.
Today the Lincoln Tunnel is the busiest vehicular tunnel in the world, carrying some 120,000 vehicles each and everyday. The three-tubes of the Lincoln Tunnel help to connect midtown Manhattan with three different New Jersey expressways including the NJ 495 Freeway, the NJ 3 and the New Jersey Turnpike.
The Laerdal Tunnel in western Norway is the longest road tunnel in the world. It takes about 20 minutes to pass through the tunnel. Brightly colored lights placed every six kilometers help drivers stay alert.
It should be mentioned that when it is finished, in 2029, the Fehmarnbelt Tunnel will be the longest combined rail and road tunnel ever built. The Fehmarnbelt Fixed Link, as the tunnel is formally known, will include two double-lane highways and two electrified rail tracks.