Ring 5 (or O5/Motorring 5) is a proposed 5th ring road, built to motorway standards, around the city of Copenhagen. It is planned to be 70 km in length, running from the town of
Køge
Køge (, older spelling ''Kjøge'') is a Danish seaport on the coast of Køge Bugt (''Bay of Køge'') 39 km southwest of Copenhagen. It is the principal town and seat of Køge Municipality, Region Sjælland (Zealand), Denmark. In 2025, the ...
to the south of the city to
Helsingør
Helsingør ( , ; ), classically known in English as Elsinore ( ), is a coastal city in northeastern Denmark. Helsingør Municipality had a population of 63,953 on 1 January 2025, making it the 23rd most populated municipality in Denmark. Helsin ...
in northern Zealand. The motorway is designed to divert heavy goods traffic outside of the city, providing more space on existing motorways, in particular
Køge Bugt Motorvejen,
Holbækmotorvejen,
Motorring 3,
Frederikssundmotorvejen,
Hillerødmotorvejen, og
Helsingørmotorvejen.
The motorway is planned to extend from the Køge Bugt motorway
E47/
E55/
E20 and then west to Greve Strand and along a widened Tværvej. It will then connect to the Holbæk motorway and continue up towards
Sengeløse to meet the Frederikssund motorway, the Hillerød motorway and Isterødvejen, ending with a connection to the existing Helsingør motorway south of the city. This would possibly then connect to a proposed link between Helsingør and Helsingborg in Sweden, the
HH Tunnel
The HH Tunnel (alt. Helsingtunnel) is a proposed series of tunnels under Øresund between Helsingborg in Sweden and Helsingør in Denmark. The connection is planned for passenger trains, and other proposals for the tunnels include freight rail a ...
The proposed route has met considerable opposition in North Zealand, to the extent that only the southern part between Køge and the Frederikssund motorway is currently under consideration. The proposed road has proved politically divisive, with some local politicians backing the project to reduce traffic on the other motorways in Greater Copenhagen and others opposed on environmental grounds.
In 2019, a 2-year feasibility study of this section was announced by the government.
The motorway was first proposed in the late 1970s, and in 1982 a 1 km wide strip of land running the length of the proposed route (a transport corridor) was reserved for its construction and/or a rail line by the authorities. This continued reservation has proved highly controversial for residents and businesses along the route that would be affected. As of 2019, Ring 5 remains a government development strategy for the Greater Copenhagen area.
See also
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High-speed rail in Denmark
The first high-speed railway in Denmark was the Copenhagen–Ringsted Line, completed in late 2018 and opened in 2019. Further high-speed lines are currently under planning.
Since HSR in Denmark reaches no more than 200 km/h, it can also be des ...
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Transportation in Denmark
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HH Tunnel
The HH Tunnel (alt. Helsingtunnel) is a proposed series of tunnels under Øresund between Helsingborg in Sweden and Helsingør in Denmark. The connection is planned for passenger trains, and other proposals for the tunnels include freight rail a ...
References
Streets in Copenhagen
Ring roads in Denmark
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