Sinsen Interchange
multilevel road junction
The Sinsen Interchange (Norwegian: Sinsenkrysset) is a heavily trafficked, multilevel road junction in Oslo, Norway. It connects the highways Norwegian National Road 150 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 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, 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.
Begin with the source’s own compact description: “Sinsen Interchange” is multilevel road junction. The dossier treats that line as a proposition to test through Sinsen, Interchange and multilevel, not as a finished interpretation.
Why this record matters
The phrase “multilevel road junction” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Mar 15, 2026. The linked authority identifier is Q7525040. Authority coordinates are 59.938, 10.785. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1957, 1962, 1992 and 1994.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Sinsen Interchange”, its source revision and the description used here.
- Expand the search: follow Sinsen Interchange primary sources, Sinsen Interchange archive and Sinsen research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Sinsen Interchange”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Sinsen Interchange” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.