Ring Line (Oslo)

Ring Line
The Ring Line to the right, at Storo
Overview
Native nameT-baneringen
OwnerSporveien
Termini
Stations3
Service
TypeRapid transit
SystemOslo Metro
Operator(s)Sporveien T-banen
History
Opened20 August 2003 to Storo
20 August 2006 to Carl Berners plass
Technical
Line length5 km (3.1 mi)
Number of tracksDouble
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Electrification750 V DC third rail
Operating speed70 km/h (43 mph)
Route map

Ullevål stadion
1934
Nydalen
2003
Storo
2003
Sinsen
2006
Carl Berners plass
1966

The Ring Line (Norwegian: T-baneringen or Ringbanen) is the newest rapid transit loop line of the Oslo Metro of Oslo, Norway. It connects to the Sognsvann Line in the west and the Grorud Line in the east; along with these two lines and the Common Tunnel, the Ring Line creates a loop serving both the city centre and Nordre Aker borough. The 5.0 kilometres (3.1 mi)-long line has three stations: Nydalen, Storo and Sinsen. Four-fifths of the line runs within two tunnels, with the 1.0-kilometer (0.62 mi) section between Storo and Sinsen, including both stations, being the only at-grade part. The line connects to the Grorud Line north of Carl Berners plass and with the Sognsvann Line north of Ullevål stadion.

Planning for the line began in the late 1980s, and the city council approved the line 1997. Construction started in 2000; Nydalen and Storo opened on 20 August 2003, and Sinsen opened on 20 August 2006. The line cost 1,348 million kr to build and was financed through Oslo Package 2. The Ring Line is served by lines 4 and 5 of the metro, operated by Sporveien T-banen on contract with the Ruter transport authority. All lines operate each fifteen minutes. Nydalen and Storo are such located that trains in either direction use the same time along the loop, effectively giving a five-minute headway to the city centre. After the opening of the line, the areas around the stations have had increased urban redevelopment. The infrastructure is owned and maintained by the municipal company Sporveien.