Lambertseter Line

Lambertseter Line
MX3000 at Ryen Station
Overview
Native name	Lambertseterbanen
Owner	Sporveien
Termini	Tøyen Bergkrystallen
Stations	11
Service
Type	Rapid transit
System	Oslo Metro
Operator(s)	Sporveien T-banen
Depot(s)	Ryen
Rolling stock	MX3000
History
Opened	28 April 1957
Technical
Line length	8.4 km (5.2 mi)
Number of tracks	Double
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	750 V DC third rail
Operating speed	70 km/h (43 mph)
Highest elevation	165.5 m (543 ft)
Route map Legend 10.5 km Bergkrystallen 1966 160.0 m 10.0 km Munkelia 1966 9.5 km Lambertseter 1966 155.0 m 8.6 km Karlsrud 1966 7.8 km Brattlikollen 1966 165.5 m Ryen Depot 6.7 km Ryen 1966 124.0 m 6.2 km Manglerud 1966 130.6 m 5.2 km Høyenhall 1966 Østensjø Line Trunk Line (ca. 50 m) 4.6 km Brynseng 1966 84.6 m Østensjø Line Etterstad Depot Østre gravlund 1923 3.8 km Helsfyr 1966 73.7 m Etterstad Etterstad 3.0 km Ensjø 1966 Gjøvik Line (ca. 15 m) Gamleby Line Grorud Line 2.1 km Tøyen 1966 22.2 m Common Tunnel This diagram: view talk edit

The Lambertseter Line (Norwegian: Lambertseterbanen) is a 5.9-kilometer (3.7 mi) line on the Oslo Metro which runs from Brynseng to Bergkrystallen. It further shares track with the Østensjø Line along the 2.5-kilometer (1.6 mi) section from Tøyen to Brynseng. The line runs through a primary residential area of Nordstrand, serving neighborhoods such as Manglerud, Ryen and Lambertseter. The line is served by Line 4 of the metro, which runs every fifteen minutes. This is supplemented by Line 1 that is extended to Bergkrystallen between 6:30 and 19 on weekdays, giving a combined frequency of eight trains per hour.

Originally the Lambertseter Line was proposed as an extension of the now closed Simensbråten Line. Planning of a metro started in 1946 and instead of running via Ekeberg the Lambertseter Line was to run via Etterstad. Construction was tied with large-scale construction of housing along the route. As the Lambertseter Line could be completed much earlier than the metro's Common Tunnel, the Lambertseter Line was first built as part of the Oslo Tramway. Plans were approved in 1954 and the line opened on 28 April 1957. Until 17 May 1966 it was operated by Oslo Sporveier's SM53 trams and connected to the city center via the Vålerenga Line. From 22 May it became the first part of the Oslo Metro. The metro's main depot, Ryen Depot, is situated along the line. The Lambertseter Line received a major overhaul between 2010 and 2013.