tram in Riddervolds gate in 1926 The Oslo Tramway was established as a
horsecar network in 1875 by
Kristiania Sporveisselskab (1875). In 1887 it rejected a proposal for L. Samson, a real estate developer, to build a line to
Majorstuen to serve his projects. He therefore contacted engineers H. E. Heyerdal and A. Fenger-Krog, the latter who had studied tramways abroad. They sent an application that year to the municipality, at a time when there were no other electric tramways in operation in Europe. However, the application did not explicitly state that the company would use electric traction. The group received permission to build two lines, one from Jernbanetorget to Majorstuen and a branch to
Skøyen, a total distance of . Use of
overhead wires had been discouraged by the city engineer, but he later changed his mind after a trip to Germany. The issue was decided upon by the municipal council on 19 May 1892. Investments totaled NOK 817,572. in the second half of the 1940 Trial runs on the line commenced on 10 January 1894, at first between the depot and corner of Bogstadveien and Sorgenfriveien. Motorman courses were carried out by AEG from 15 January to 16 February. The first trip to the
Queen's Park was carried out on 17 February and the first run to Jernbanetorget was completed on 20 February. The official opening took place on 2 March 1894 and operations commenced the following day. The Briskeby Line was the first electric tramway in the Nordic Countries. The Skøyen Line to Fredrik Stangs gate opened the same day. The same year a tram driver on the line received Norway's first ever
speeding ticket for exceeding the speed limit of . Services were initially provided using
Class A trams. The motormen were to both drive and sell tickets, but this was found to be too much work for one person to do efficiently. Conductors were therefore introduced almost immediately. Originally services consisted of a tram from Majorstuen to Jerbanetorget every six minutes. At Parkveien there was a transfer between the Skøyen and Briskeby Line. This proved a difficult, as trams from Majorstuen were full and most passengers were forced to walk into town. Therefore, from April KES introduced direct services from
Skillebekk on the Skøyen Line to Jernbanetorget. It quickly turned out the company had too few trams and four more were delivered by the end of the year. A balloon loop was installed at Jernbanetorget on 10 November 1909. In conjunction with the
1914 Jubilee Exhibition, the Frogner Line was extended from
Frogner plass to Majorstuen. It was officially opened on 15 May 1914. From the services became a ring line: Line 1 ran Jernbanetorget–Briskeby–Majorstuen–Frogner–Jernbanetorget, while Line 2 was designated to run the opposite direction. They were both run every five minutes. The circle scheme was ended on 15 December 1915 and the Briskeby Line again became Line 1. However, this was unpopular with the passengers and the circle service was reintroduced on 24 February 1916. Line 1 was extended from Jernbanetorget along the
Gamlebyen Line between 17 December 1917 to 1 October 1918. Six-minute services were introduced from 25 March 1920, five-minute headways from 19 July 1920 and six-minute headways from 25 July 1921.
SM53 trams were introduced on some services on the line from 7 April 1953. From 6 September 1953 the combination of lines 1 and 5 was dropped and instead 1 and 2 were combined, allowing the circle through Majorstua to continue. The headway was reduced to 15 minutes. This was altered again on 25 June 1961, when the headway varied between 10, 12 and 15 depending on the time of day. Later that year Oslo Sporveier announced new plans to remove tram services, this time both the Briskeby and the Homansbyen services, along with the
Sinsen Line. The issue was resolved with increased funding granted on 11 November. trams meeting at
Nationaltheatret in 1976 From 2001 Oslo Sporveier and later Ruter removed the Briskeby Line from its long-term investment plans, cutting maintenance to a minimum. Oslo Sporveier carried out a series of improvements to the Briskeby Line between 2004 and 2006. Rosenborgs gate was moved to serve both lines 11 and 19, giving it twice the number of departures. Both lines had their headway cut from 15 to 10 minutes. The station were made more visible and parking restrictions were carried out in Inkognitogata. Meltzers gate was closed as a station. This cause decreased travel time, and saw the daily ridership rise from 1,300 to 2,250 boarding passengers from 2003 to 2007. ==Line Upgrades==