The tunnel, which will be 18 kilometers (11.1 miles) long, is one of Europe’s largest infrastructure projects, with a construction budget of over 7 billion euros ($7.1 billion). […] It will be built across the Fehmarn Belt, a strait between the German island of Fehmarn and the Danish island of Lolland, and is designed as an alternative to the current ferry service from Rodby and Puttgarden, which carries millions of passengers every year. Where the crossing now takes 45 minutes by ferry, it will take just seven minutes by train and 10 minutes by car. The tunnel, whose official name is Fehmarnbelt Fixed Link, will also be the longest combined road and rail tunnel anywhere in the world. It will comprise two double-lane motorways — separated by a service passageway — and two electrified rail tracks. “Today, if you were to take a train trip from Copenhagen to Hamburg, it would take you around four and a half hours,” says Jens Ole Kaslund, technical director at Femern A/S, the state-owned Danish company in charge of the project. “When the tunnel will be completed, the same journey will take two and a half hours.”
“Today a lot of people fly between the two cities, but in the future it will be better to just take the train,” he adds. The same trip by car will be around an hour faster than today, taking into account time saved by not lining up for the ferry.
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