Sognsvannsbanen

Sognsvann Line
Sognsvann is the terminus of the Sognsvann Line
Overview
Native name	Sognsvannsbanen
Type	Rapid transit
System	Oslo Metro
Termini	Majorstuen Sognsvann
Stations	9
Operation
Opened	10 October 1934
Owner	Kollektivtransportproduksjon
Operator(s)	Oslo T-banedrift
Technical
Line length	6.0 km (3.7 mi)
Number of tracks	Double
Track gauge	1,435 mm (4 ft 8 1⁄2 in)
Electrification	750 V DC (third rail)
Operating speed	70 km/h (43 mph)
Highest elevation	198.1 m (650 ft)
Route map 8.7 km Sognsvann1934 198.1 m 8.4 km Kringsjå1934 194.3 m 7.8 km Holstein1934 Nordberg1934–92 166.9 m 7.1 km Østhorn1934 6.8 km Tåsen1934 123.3 m 6.1 km Berg1934 Ring Line 5.3 km Ullevål stadion1934 98.3 m Vestgrensa1934–99 4.6 km Forskningsparken1999 4.0 km Blindern (station)1934 74.8 m. Frøen1934–93 Kolsås-, Røa- and Holmenkoll Line 2.7 km Majorstuen1898 47.7 m Common Tunnel

The Sognsvann Line (Norwegian: Sognsvannsbanen) is a rapid transit line on the Oslo Metro of Norway. It branches from the Common Tunnel at Majorstuen and runs 6.0 kilometers (3.7 mi) to Sognsvann. After Ullevål stadion, the Ring Line branches off. The Sognsvann Line serves the northwestern and northern neighborhoods of Oslo, mostly within the borough of Nordre Aker. The line is owned and maintained by Kollektivtransportproduksjon and has nine stations. The western end of line 5 serves the entire line. Line 4 and the eastern end of line 5 serve the southern part of the line up to Ullevål stadion before branching off and continuing along the Ring Line. This gives an average five-minute headway on the southern part and an average fifteen-minute headway on the northern part of the line.

The line opened on 10 October 1934 as a light rail. In 1993, it was upgraded to metro standard as the first light rail west of Oslo, with two stations being closed. The Ring Line opened in 2003. Forskningsparken has transfer to the Oslo Tramway and serves Rikshospitalet. Forskningsparken and Blindern both serve the University of Oslo, while Ullevål stadion serves Norway's largest football venue. North of there the line mainly serves residential areas. Sognsvann serves the Norwegian School of Sport Sciences and the recreational area Nordmarka.