|Opened||9 January 1977|
Stortinget is an underground rapid transit station on the Common Line of the Oslo Metro, Norway. It is located in the heart of the city center, next to the Parliament of Norway Building (Stortinget). The station is served by all six lines of the metro. At the street level, the station serves tram routes 17, 18 and 19 on the Ullevål Hageby Line as Tinghuset and Prof. Aschehougs gate. Stortinget is 'kilometer marker zero' for the metro network and is owned by Kollektivtransportproduksjon.
There has been a tram stop at Tinghuset since the opening of the Oslo Tramway, in 1875. The rapid transit station opened as Sentrum in 1977, and was connected to the eastern network of the metro. It was forced to close in 1983 due to leaks. It took the new name following the 1987 re-opening; this time it was also connected to the western network. The station has four platforms; originally two were used for the eastern trains and two for the western ones. Since 1993, trains have passed through the station.
The first underground railway to serve Oslo was the extension of the Holmenkoll Line to Nationaltheatret in 1928. The company, Holmenkolbanen, had plans for further extensions into the heart of the city, but high costs during the construction of the initial tunnel hampered progress. In 1954, the Parliament of Norway decided to build a rapid transit system for Oslo. Four lines to the east of the city would be built, and in 1966 the section from Tøyen to Jernbanetorget opened by Oslo Sporveier. Jernbanetorget was located adjacent to Oslo East Station, the main railway station serving Oslo. However, the eastern lines also did not extend into the core of the central business district of the capital.
During the 1960s, the Oslo Tunnel was being planned to connect the Drammen Line to Oslo East Station. This would make the West Station unnecessary, and would allow a central station to be built at the location of the East Station. The tunnel was planned to run in a similar route as would be necessary to connect Jernbanetorget to Nationaltheatret, and a railway station was planned to connect to Nationaltheatret. Simultaneously, Oslo Sporveier worked with possibilities to connect their eastern and western networks, and get both into the city core. During the 1960s, the planning office for the metro proposed to build a connecting tunnel between Nationaltheatret and Jernbanetorget. However, the initial plans involved creating a station close to Nationaltheatret, named for Slottsparken, which would serve as the transfer point between the two systems. This station had a planned dimension to hold 25,000 people.
At the time, the western and eastern networks were incompatible; in addition to different platform heights, the eastern network used six-car trains with a third-rail power supply, while the western network used overhead wires and two-car trains. The initial plans were met with criticism, following media's discovery that the main planners had not consulted several hired specialists, and that alternatives to the preferred route had not been made. As a consequence, several engineers working for the Norwegian State Railways made two alternative suggestion for the route. By 1975, the plans were changed so Nationaltheatret would become the transfer station, by building a balloon loop for the eastern trains, while the western trains would terminate as before. This solution would allow the two networks to be connected later. In 1978, the city planner discarded the proposal from Oslo Sporveier to build a new station at Slottsparken, and instead decided that Stortinget would become the interchange between the two systems. This would allow the western network to later be upgraded to metro standard and allow through trains. The proposal was supported by all political parties except the Labour Party.
The decision to build Sentrum Station was taken by the city council on 22 May 1969; the decision also involved that the transfer station be placed at Slottsparken/Nationaltheatret. Construction started in 1972, and the first leaks were revealed. By the time the station opened on 9 January 1977, the leaks had not been removed. During trials in January, it turned out that the tracks were too low for all types of trains to be able to open their doors, causing the tracks to have to be raised. By 1978, the contractor and the municipality felt that the leaks were under control, and the municipality took over the station. In February 1983, the station was closed to finally remove all leaks. At the time, it was expected that the station could reopen in 1984. The leakages were caused by two sources: the use of the wrong type of concrete, and the wrong construction method. These were specified correctly in the tender contracts, but after the contractor was chosen, an agreement was made between the municipality and Selmer for the use of the membrane method. Combined with the inferior quality of concrete, the leaks were unavoidable. In 1986, the municipality sued Selmer for the NOK 158 million it cost to repair the station.
The station reopened on 7 March 1987, with the new name Stortinget. The name derives from the Parliament of Norway (Norwegian: Stortinget) that is adjacent to the station. The Common Tunnel was completed, and the trains from the western network terminated where at the old platforms, where the eastern trains had previously terminated. The eastern trains instead operated through a balloon loop. The station featured a step-free walk between the two systems. With the opening of Stortinget, the metro network was declared finished, after the last extension on the Furuset Line to Ellingsrudåsen had been made in 1981. After the opening of Stortinget, only five new station have opened: Mortensrud (1998), Forskningsparken (1999), Nydalen, Storo (both 2003), Sinsen and Husebybakken (both 2006). In 1993, the Sognsvann Line and the Common Tunnel were rebuilt to metro standard, and the first through trains started operating on both sides of Stortinget. By 1995, also the Røa Line was upgrades, and all lines started operating through Stortinget.
Stortinget has four platforms. Most regular trains which travel through the city center use the main platforms which were formerly used only for trains on the western side of the network. At each side is a platform for trains from the east terminating at Stortinget. Before the lines were joined together these platforms were in heavy use, but now they are used only for a small number of extra trains. A loop which passes underneath the main track connects the two side platforms, allowing the trains to turn without having to reverse direction.
Stortinget is served by all six lines of the Oslo Metro. The station is considered the heart of the system, and is 'kilometer marker zero' for measuring all distances. All services have a 15-minute headway, except during late night. The metro is operated by Oslo T-banedrift on contract with Ruter.
West-bound trams stop at Tinghuset, while east-bound trams stop at Prof. Aschehougs gate. They are served by lines 17, 18 and 19 of the Oslo Tramway. Westwards, line 17 and 18 operate along the Ullevål Hageby Line to Rikshospitalet; travel time is 16 minutes. Line 19 branches off onto the Briskeby Line to Majorstuen. Eastwards, line 17 operates to Grefsen, with a travel time of 17 minutes. Lines 18 and 19 operate to Ljabru, with a travel time of 22 minutes. The tramway is operated by Oslo Sporvognsdrift on contract with Ruter.
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Media related to Stortinget stasjon at Wikimedia Commons