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Transport

Significant investment has been made in building road and rail links between regions in Denmark, most notably the Great Belt Fixed Link, which connects Zealand and Funen. It is now possible to drive from Frederikshavn in northern Jutland to Copenhagen on eastern Zealand without leaving the motorway. The main railway operator is DSB for passenger services and DB Cargo for freight trains. The railway tracks are maintained by Banedanmark. The North Sea and the Baltic Sea are intertwined by various, international ferry links. Construction of the Fehmarn Belt Fixed Link, connecting Denmark and Germany with a second link, Started in 2021. Copenhagen has a rapid transit system, the Copenhagen Metro, and an extensive electrified suburban railway network, the S-train. In the four largest cities – Copenhagen, Aarhus, Odense, Aalborg – light rail systems are planned to be in operation around 2020.

Cycling in Denmark is a very common form of transport, particularly for the young and for city dwellers. With a network of bicycle routes extending more than 12,000 km and an estimated 7,000 km of segregated dedicated bicycle paths and lanes, Denmark has a solid bicycle infrastructure.

Private vehicles are increasingly used as a means of transport. Because of the high registration tax (150%), VAT (25%), and one of the world's highest income tax rates, new cars are very expensive. The purpose of the tax is to discourage car ownership.In 2007, an attempt was made by the government to favour environmentally friendly cars by slightly reducing taxes on high mileage vehicles. However, this has had little effect, and in 2008 Denmark experienced an increase in the import of fuel inefficient old cars, as the cost for older cars—including taxes—keeps them within the budget of many Danes. As of 2011, the average car age is 9.2 years.

With Norway and Sweden, Denmark is part of the Scandinavian Airlines flag carrier. Copenhagen Airport is Scandinavia's busiest passenger airport, handling over 25 million passengers in 2014. Other notable airports are Billund Airport, Aalborg Airport, and Aarhus Airport.