The Sinsen Interchange ( no, Sinsenkrysset) is a heavily trafficked, multilevel road junction in Oslo, Norway. It connects the highways

Norwegian National Road 150 Norwegian National Road 150, also known as Ring 3 and formerly Store Ringvei is a beltway limited-access road which circumnavigates Oslo, Norway. It runs from Ryen, through the Sinsen Interchange to Lysaker in Bærum. History The Sinsen Intercha ...

and Norwegian National Road 4 ( Trondheimsveien). The junction has existed since the 19th century, and has grown considerably in size since then. It was enhanced with a

roundabout A roundabout is a type of circular intersection or junction in which road traffic is permitted to flow in one direction around a central island, and priority is typically given to traffic already in the junction.''The New Shorter Oxford En ...

in 1957, and was connected with National road 150 in 1962. The increase in traffic was greater than the capacity of the junction, and thus a bridge was constructed that redirected Trondheimsveien above the roundabout. Further restructuring was done in 1992, when a local tramway line was redirected outside of the interchange, and in 1994, when Riksvei 150 was directed below the roundabout. The Norwegian Public Roads Administration plans to connect the

Løren Tunnel Loren is both a given name and surname. Loren or Løren may also refer to: * Løren Line, Norwegian line of the Oslo Metro * Løren (station), Norwegian underground rapid transit station of the Oslo Metro * Loren River, Russia * Loren Bridge, ...

, a planned tunnel over National road 150, with the Sinsen interchange in late 2008. "North of the Sinsen Interchange" is common expression in the Norwegian district debates, where inhabitants of Oslo are accused of being ignorant of the country north of the interchange. The expression cropped up in revues during the 1960s, and is probably due to that Sinsen then was the end point for the main road leading into Oslo from the north.

References

Road interchanges in Norway Road transport in Oslo Grünerløkka {{Norway-road-stub