Here is the question :
WHERE IS THE WORLD’S LONGEST AND DEEPEST RAIL TUNNEL?
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And, the answer for the the question is :
[STC002785] In 2016, Switzerland opened Gotthard tunnel, taking the title of the world’s longest and deepest rail tunnel from Japan’s 33-mile long Seikan rail tunnel. Gotthard tunnel is both longer and deeper than Seikan rail tunnel. The Gotthard tunnel is a high-speed train route that connects northern Europe and southern Europe via the base of the Swiss Alps. The construction of the Gotthard tunnel took over two decades and encompassed 35 miles. The tunnel is approximately 2.2 kilometers (1.4 miles) below the Alps at its deepest point. There are around 260 freight trains and 65 passenger trains that are scheduled to travel through the tunnel every single day. In its opening ceremony, Gotthard received a great deal of praise from many European nations. This is due to the fact that the tunnel will eliminate the need to transport goods over the Alps, which will result in a significant increase in both productivity and cost savings. And the trip time for travelers is reduced down by hours, which means they have more time to spend visiting attractions.