A/S Bærumsbanen was a

tram A tram (also known as a streetcar or trolley in Canada and the United States) is an urban rail transit in which Rolling stock, vehicles, whether individual railcars or multiple-unit trains, run on tramway tracks on urban public streets; some ...

company that operated the Lillaker-,

Kolsås Kolsås (), sometimes called Kolsaas, is a hill in the municipality of Bærum, Norway. Geologically, Kolsås belongs to the Oslo Graben area. Its two peaks consist of hard rhomb porphyric lava covering softer rocks, forming steep cliffs to the ...

and

Østensjø Line The Østensjø Line () is a line on the Oslo Metro which runs from Brynseng (station), Brynseng to Mortensrud (station), Mortensrud. It further shares track with the Lambertseter Line along the section from Tøyen (station), Tøyen to Brynseng. ...

of the

Oslo Tramway The Oslo tram network (, short from ', 'electric') is the tram system in Oslo, Norway. It consists of six lines with 99 stops and has a daily ridership of 132,000. It is operated by , a subsidiary of the municipally-owned who maintain the trac ...

Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...

, from 1924 to 1971 when the company became part of

Oslo Sporveier AS Oslo Sporveier is a defunct municipal owned company responsible for public transport in Oslo, Norway. It was created in 1924 to take over the city's two private tram companies. In 1927 its started with bus transport, including from 1940 to 1 ...

History

In 1924 the two street tram operators in

Oslo Oslo ( or ; ) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of 1,064,235 in 2022 ...

Kristiania Sporveisselskab A/S Kristiania Sporveisselskab or KSS, nicknamed the Green Tramway (), was an operator of part of the Oslo Tramway from 1875 to 1924. The company was established in 1874 and started with horsecar operations on the Ullevål Hageby Line, Gamlebyen ...

and

Kristiania Elektriske Sporvei A/S Kristiania Elektriske Sporvei or KES, nicknamed the Blue Tramway (), was a company which operated part of the Oslo Tramway between 1894 and 1924. It built a network of four lines in Western Oslo, the Briskeby Line and the Frogner Line which ra ...

, were taken over by the municipal owned

. The final part of the

Skøyen Line The Skøyen Line (/''Skøyenlinja'') is a tramway line running from Slottsparken to Skøyen in Oslo, Norway. It is served by line 13 of the Oslo Tramway. It connects the Briskeby Line at Slottsparken to the Lilleaker Line at Skøyen. The lin ...

, from Skøyen to Lillaker was a suburban tramway located in the neighboring municipality of Aker, and the Municipality of Oslo was not interested in taking over it. Therefore the owner reorganized itself to A/S Kristiania Elektriske Sporvei Bærumsbanen (KES-BB), though changing their name to just A/S Bærumsbanen in 1935 after Oslo Sporveier bought 25% of the company on 1 October 1934. The new company immediately started expanding the Lilleaker Line, first to

Bekkestua Bekkestua is a town in the Municipalities of Norway, municipality of Bærum, Norway, with a busy bus terminal and a Bekkestua (station), station on one of Oslo's westbound Oslo T-bane, T-bane lines, Kolsåsbanen. It also has its own library, police ...

and then to

Haslum Haslum is a district in the municipality of Bærum, Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and t ...

—establishing a depot at Avløs at the same time. The final extension of the line occurred on 1 January 1930 to

. From 4 January 1937 Bærumsbanen took over the operation of the

on the east side of Oslo, that was owned by the municipal

Akersbanerne A/S Akersbanerne was a municipal owned company that operated tramways in the former Municipality of Aker in current Oslo, Norway. The company was established in 1917, and opened the suburban Østensjø Line tramway in 1926; it took over the maj ...

—allowing the company to operate through services from Oppsal to Kolsås. To shorten travel time on the outer part of the Lilleaker Line, the company received permission in 1938 build a line from Jar to Sørbyhaugen on the

Røa Line The Røa Line () is a rapid transit line of the Oslo Metro, Norway, which runs from Majorstuen (station), Majorstuen in Oslo to Østerås (station), Østerås in Bærum. It serves neighborhoods such as Smestad, Oslo, Smestad, Hovseter, Huseby and ...

, allowing the trains to use the

Common Tunnel The Common Tunnel (), sometimes called the Common Line (), is a long tunnel of the Oslo Metro which runs through the Sentrum, Oslo, city center of Oslo, Norway. The name derives from the fact that all five lines of the metro use the tunnel, whi ...

shared by the other suburban lines in the west to quickly reach the city center at the underground station at

Nationaltheatret The National Theatre in Oslo () is one of Norway's largest and most prominent venues for performance of dramatic arts. History The theatre had its first performance on 1 September 1899 but can trace its origins to Christiania Theatre, which was ...

. This opened on 15 June 1942—at the same time the Oppsal route was limited to running to Jar. On 1 October 1944 Oslo Sporveier bought the whole company, but not until 1 July 1971 did they fully merge.

References

{{DEFAULTSORT:Baerumsbanen Oslo Tramway operators Defunct railway companies of Norway Companies based in Oslo Railway companies established in 1924 Railway companies disestablished in 1971