Østensjø Line
T-bane train at Mortensrud
Info
Type	Rapid transit
System	Oslo T-bane
Termini	Tøyen Mortensrud
No. of stations	13
Operation
Opened	1926 (as tramway) 1967 (as T-bane) 1998 (to Mortensrud)
Owner	Kollektivtransportproduksjon
Operator(s)	Oslo T-banedrift
Technical
Line length	11.5 km
No. of tracks	Double
Gauge	1,435 mm (4 ft 8½ in)
Electrification	750 V DC (third rail)
Operating speed	70 km/h
Highest elevation	152.4 m

The Østensjø Line (Norwegian: Østensjøbanen) is a rapid transit line on the Oslo T-bane which runs between downtown Oslo and Mortensrud in the southeast neighborhood of Nordstrand. The line departs from the Furuset Line at Hellerud, then travels south through neighborhoods in the boroughs of Østensjø and Bøler.

The line was opened as a suburban tram line to Oppsal in 1926 and extended to Bøler in 1958, and converted to subway and extended to Skullerud in 1967. To serve neighborhoods further south, the line was extended to Mortensrud in 1998.^[1][2]

Østensjøbanen is served by Line 3, which runs through downtown and travels on the Sognsvann Line in the west. Like all other rapid transit lines on the east side of Oslo, Østensjøbanen is operated on a third rail system.

See also

• List of stations on Østensjøbanen

References

Map of the Østensjø Line from 1928