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The Airport Express Train ( no, Flytoget) is a Norwegian high-speed airport railway service connecting
Oslo Airport Oslo Airport ( no, Oslo lufthavn; ), alternatively referred to as Oslo Gardermoen Airport or simply Gardermoen, is the international airport serving Oslo, Norway, the capital and most populous city in the country. A hub for Flyr, Norse Atl ...
to
Oslo Central Station Oslo Central Station ( no, Oslo sentralstasjon, abbreviated ) is the main railway station in Oslo, and the largest railway station within the entire Norwegian railway system. It connects with Jernbanetorget station. It's the terminus of Dramm ...
in nineteen minutes. Run by Flytoget AS (formerly NSB Gardermobanen AS), it operates on the high-speed Gardermoen Line using sixteen GMB Class 71 electric trains. Normal service frequency is once every ten minutes, with five of the services each hour continuing westwards beyond Oslo Central. The extended services serve nine stops within Greater Oslo and take up to 60 minutes. Flytoget transported 5.4 million passengers in 2007, a 34-percent market share of airport ground transport. The service, which has a top speed of , is the only high-speed rail service in
Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of ...
. Construction started in 1994 and high-speed trains began serving Gardermoen Airport from the date of its opening on 8 October 1998, although full operation using the Romerike Tunnel had to wait another ten and a half months after severe leaks caused by the tunnel's construction led to the partial depletion of two lakes. Formed in 1992 as a subsidiary of
Norwegian State Railways Vygruppen, branded as Vy, is a government-owned railway company which operates most passenger train services and many bus services in Norway. The company is owned by the Norwegian Ministry of Transport. Its sub-brands include Vy Buss coach ...
, the company has been owned since 2001 by the
Norwegian Ministry of Trade and Industry The Royal Norwegian Ministry of Trade and Industry ( Norwegian: Nærings- og handelsdepartementet) was a Norwegian ministry responsible for business, trade and industry. On 1 January 2014 it was merged into Ministry of Trade, Industry and Fisheri ...
.


History


Decision for a new airport connection

When the
Parliament of Norway The Storting ( no, Stortinget ) (lit. the Great Thing) is the supreme legislature of Norway, established in 1814 by the Constitution of Norway. It is located in Oslo. The unicameral parliament has 169 members and is elected every four years bas ...
on 8 October 1992 decided to build a new central airport for
Eastern Norway Eastern Norway ( nb, Østlandet, nn, Austlandet) is the geographical region of the south-eastern part of Norway. It consists of the counties Vestfold og Telemark, Viken, Oslo and Innlandet. Eastern Norway is by far the most populous region ...
, they also decided that the main mode of ground transport should be by rail. While the previous airport,
Oslo Airport, Fornebu Oslo Airport, Fornebu ( no, Oslo lufthavn, Fornebu), was the primary international airport serving Oslo and Eastern Norway from 1 June 1939 to 7 October 1998. It was then replaced by Oslo Airport, Gardermoen, and the area has since been redeve ...
, was located just outside the city limits, the new airport, Oslo Airport, Gardermoen, would be located north of the city, outside the reach of existing
public transport Public transport (also known as public transportation, public transit, mass transit, or simply transit) is a system of transport for passengers by group travel systems available for use by the general public unlike private transport, typi ...
. The principle of the airport construction was that it was not to be footed by the tax payers; the entire airport would be built with borrowed money through Oslo Lufthavn AS, a subsidiary of the Norwegian Airport Administration. The same principle was chosen for the airport rail link—the Norwegian State Railways (NSB) creating the
limited company In a limited company, the liability of members or subscribers of the company is limited to what they have invested or guaranteed to the company. Limited companies may be limited by shares or by guarantee. In a company limited by shares, the li ...
subsidiary NSB Gardermobanen AS, founded on 24 November 1992, to perform the construction of the line. It would be able to charge train operators using the line, channeling the payments to cover down payments and interest of the debt used to build the railway.
Profit margin Profit margin is a measure of profitability. It is calculated by finding the profit as a percentage of the revenue. \text = = There are 3 types of profit margins: gross profit margin, operating profit margin and net profit margin. * Gross Pro ...
was estimated to 7.5%.


Construction

Oslo Airport, Gardermoen, is not on the Trunk Line that runs north from Oslo. With heavy traffic and many small stops until
Lillestrøm Lillestrøm is a municipality in Viken county. It is located in the traditional district of Romerike. With a population of 85,757 inhabitants, it is the fourth most populated municipality in Viken. It was founded on 1 January 2020 as a merger b ...
, and continuing north as single track, the Trunk Line would have to be supplemented by a parallel
double track A double-track railway usually involves running one track in each direction, compared to a single-track railway where trains in both directions share the same track. Overview In the earliest days of railways in the United Kingdom, most li ...
from Oslo, with a new route north of
Kløfta Kløfta is a town located in Ullensaker, Akershus, Norway. It has a population of approximately 7,170 inhabitants. Kløfta has a soccer team called Kløfta IL, and a shopping market. Kløfta has three schools – a middle school and two first thr ...
to
Eidsvoll Eidsvoll (; sometimes written as ''Eidsvold'') is a municipality in Akershus in Viken county, Norway. It is part of the Romerike traditional region. The administrative centre of the municipality is the village of Sundet. General information ...
, the north of the airport allowing trains operating on the Dovre Line to
Lillehammer Lillehammer () is a municipality in Innlandet county, Norway. It is located in the traditional district of Gudbrandsdal. The administrative centre of the municipality is the town of Lillehammer. Some of the more notable villages in the munic ...
and
Trondheim Trondheim ( , , ; sma, Tråante), historically Kaupangen, Nidaros and Trondhjem (), is a city and municipality in Trøndelag county, Norway. As of 2020, it had a population of 205,332, was the third most populous municipality in Norway, an ...
to access the airport. The line was named the Gardermo Line. The Gardermo Line was the second attempt to build high-speed rail in Norway, after the line from
Ski A ski is a narrow strip of semi-rigid material worn underfoot to glide over snow. Substantially longer than wide and characteristically employed in pairs, skis are attached to ski boots with ski bindings, with either a free, lockable, or partia ...
to
Moss Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta ('' sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and ...
on the
Østfold Line The Østfold Line ( no, Østfoldbanen) is a railway line which runs from Oslo through the western parts of Follo and Østfold to Kornsjø in Norway. It continues through Sweden as the Norway/Vänern Line. The northern half is double track and ...
. But no operation speeds exceeding are achieved there due to short distances and limitations to rolling stock, making Gardermobanen the first real high-speed railway line in Norway. Due to the domination of single track in Norway, the opening of the Gardermo Line increased the total length of
double track A double-track railway usually involves running one track in each direction, compared to a single-track railway where trains in both directions share the same track. Overview In the earliest days of railways in the United Kingdom, most li ...
in the kingdom by two-thirds. Construction started in 1994. An agreement for purchase of sixteen three-car
electric multiple unit An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number ...
s was signed with Adtranz on 23 February 1995. Parliament decided on 1 October 1996 that the construction company would also operate the new train service. The trains were delivered between 19 September 1997 and 30 January 1998, costing NOK 1.4 billion.


Challenges

The greatest challenge was the need to build the Romerike railway tunnel – Norway's longest – beneath the geologically highly unstable Østmarka area between
Etterstad Etterstad () is a neighborhood in Oslo, located between the river Alna and Strømsveien, north of Vålerenga. It was incorporated into Oslo in 1946, two years before the merger of Oslo and Aker. The area is mainly residential. History The area ...
, close to Oslo Central Station, and Lillestrøm. During construction, in 1997, the water level in some lakes above the tunnel, including
Lutvann Lutvann is a lake in the recreational area Østmarka in Oslo, Norway. It covers an area of 0.39 km², at 205 m elevation. Located just outside the capital city, it is a popular site for recreation, including swimming and fishing during summ ...
and
Nordre Puttjern Nordre Puttjern is a lake in Østmarka in Oslo, Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavia ...
, sank dramatically. After the leaks were discovered on 3 February 1997, sanctions were imposed by the
Norwegian Water Resources and Energy Directorate The Norwegian Water Resources and Energy Directorate ( no, Norges vassdrags- og energidirektorat or NVE) is a Norwegian government agency established in 1921. It is under the Ministry of Petroleum and Energy and regulates the country's water r ...
requiring the elimination of all leakages. At its worst, the tunnel was leaking of water per minute.
Rhoca-Gil {{unreferenced, date=December 2013 Rhoca-Gil is a type of industrial sealant produced by Rhône-Poulenc, used in the construction of tunnels to block the passage of groundwater into the tunnel. The sealant begins as a liquid, is then injected into ...
sealant was used in an attempt to fix the leaks, but failed to work properly. Not only did it not polymerise, and therefore failed to staunch the leaks, but it also poisoned its surroundings with
acrylamide Acrylamide (or acrylic amide) is an organic compound with the chemical formula CH2=CHC(O)NH2. It is a white odorless solid, soluble in water and several organic solvents. From the chemistry perspective, acrylamide is a vinyl-substituted primar ...
. Manual fixing with concrete became necessary; the fixing and cleaning up of the toxin delayed the building of the tunnel by one year. Further complications arose due to conflicts between NSB Gardermobanen and the construction company, Scandinavian Rock Group, with the latter at one instance stopping work for three weeks while the parties quarrelled in court. Reports have shown a lack of inspection and reporting procedures during incidents that should have been addressed – but were never taken seriously – in 1995. Construction of the tunnel caused damage to around sixty houses and an evaluation by the Ministry of Transport and Communications showed that NOK 500 million was spent on fixing the leaks and claimed that this was to a large extent an unnecessary expenditure which more efficient engineering procedures would have avoided. The report also criticised the administrative planning and organisation of the overall construction of the railway. Airport Express Trains began operating as soon as the new airport (and the Lillestrøm to Gardermoen stretch of the new high-speed line) opened on 8 October 1998; however, for more than ten months they had to use the old Hovedbane (Trunk Line) between Oslo S and Lillestrøm, which restricted their frequency to just two trains per hour. Regular operations at full capacity, using the Romerike Tunnel, did not commence until 22 August 1999.


Reorganisation

Estimates for the project costs were NOK 4.3 billion, ±20%, but by completion they had ended at NOK 7.7 billion, of which NOK 1.3 billion were related to the leakages. The rest of the line had a cost exceedings of NOK 0.4 billion. The company had acquired financial costs of NOK 0.9 billion, so the company owed NOK 10.0 billion by 1999, including money spent on the new trains. The first steps of organisational restructure were taken 29 June 2000, when the
CEO A chief executive officer (CEO), also known as a central executive officer (CEO), chief administrator officer (CAO) or just chief executive (CE), is one of a number of corporate executives charged with the management of an organization especially ...
of NSB,
Osmund Ueland Osmund Ueland (born 27 September 1947) is a Norwegian civil servant and former CEO of Norges Statsbaner (NSB). An engineer by education, he worked for Aker from 1975 to 1990. From 1990 to 1994 he headed the Lillehammer Olympic Organising Committe ...
, was fired due to several incidents related to the operations of NSB—not just the Gardermo Line.
Einar Enger Einar Enger (born 16 August 1950) is a Norwegian business executive who is chief executive officer of Norwegian State Railways. He was educated as an agrarian economist from the Norwegian College of Agriculture and worked for the agricultural coo ...
took over as new CEO on 26 February 2001. The debt in NSB Gardermobanen had become unmanageable, and in April 2000 parliament accepted that it would not be possible to make the Gardermo Line—with the current structure—the profitable venture predicted in 1992. From 1 January 2001, the company changed name to Flytoget AS, retaining ownership of the trains and operations and kept as a subsidiary of NSB. The tracks and infrastructure were transferred to the
Norwegian National Rail Administration The Norwegian National Rail Administration ( no, Jernbaneverket) was a government agency responsible for owning, maintaining, operating and developing the Norwegian railway network, including the track, stations, classification yards, traffic ma ...
(), who owns the rest of the
Norwegian railway network The Norwegian railway system comprises 4,109 km of ( standard gauge) track of which 2,644 km is electrified and 274 km double track. There are 697 tunnels and 2,760 bridges. The Norwegian Railway Directorate manages the rail ...
. All debt was restored and covered by the state, and a vehicle excise duty was implemented on the Gardermo Line to cover the management and maintenance of the line, to be paid by all users. On 9 December 2002, parliament decided that Flytoget AS would become a separate
railway company A railway company is a company within the rail industry. It can be a manufacturing firm or an rail transport operations, operator. Some railway companies operate both the trains and the track, while, particularly in the European Union, operation ...
from 1 January 2003, owned directly by the Ministry of Transport and Communications. One year later the ownership was transferred to the Ministry of Trade and Industry as part of a cleanup of political overhaul between the departments. As part of the process, a new CEO, Thomas Havnegjerde, was appointed in June 2002, and in January 2003 the new Chair, Endre Skjørestad—who took over the position form NSB's director Einar Enger. Havnegjerde announced on 6 August 2008 that he would retire from his job before the end of the year. He was replaced by Linda Bernander Silseth on 10 November 2008. On 30 August 2009, two of three services to Asker were extended to Drammen. This followed upgrades to the Drammen Line, including the Lieråsen Tunnel, and a new parking lot at
Drammen Station Drammen Station (''Drammen stasjon'') is a railway station located in downtown Drammen in Buskerud, Norway. History Drammen Station was first opened in 1866 in Conjunction with the opening of the Randsfjorden Line. The station is the terminus ...
, in total costing NOK 20 million.


Operations

Departures operate every ten minutes from Oslo Central Station (Oslo S) to the airport - i.e. six trains pr. hour. Half of the trains originate in Drammen, making five intermediate stops before Oslo S, and again at Lillestrøm. One starts from Oslo S and go directly to Gardermoen without intermediate stops. Two start from Stabekk and calls at Lysaker, Skøyen, Nationaltheateret and Oslo S. On Saturdays, Sunday mornings and in most of July, Flytoget does not operate the direct trains from Oslo S or Stabekk — only the 20-minute
headway Headway is the distance or duration between vehicles in a transit system measured in space or time. The ''minimum headway'' is the shortest such distance or time achievable by a system without a reduction in the speed of vehicles. The precise defi ...
all-stop trains. While the services northeast from Oslo S to the airport use the high-speed Gardermo Line, those westwards towards Asker use the Drammen Line built in 1870–72 and the Asker Line; so while the from Oslo S to the airport can be done in 19 minutes, the from Asker to Oslo S takes 26 minutes. The latter does however include stops at five stations:
Nationaltheatret The National Theatre in Oslo ( no, Nationaltheatret) 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 Christia ...
,
Skøyen Skøyen is a neighborhood of Oslo, Norway. It is located in the western part of the city, in the borough of Ullern Ullern is a borough of the city of Oslo, Norway. History The borough has its name from an old farm, Norse ''Ullarin''. The ...
, Lysaker,
Sandvika Sandvika () is the administrative centre of the municipality of Bærum in Norway. It was declared a city by the municipal council in Bærum on 4 June 2003. Sandvika is situated approximately west of Oslo. It is the main transportation hub fo ...
and
Asker Asker ( no, Asker), properly called Askerbygda in Norwegian, is a district and former municipality in Akershus, Norway. From 2020 it is part of the larger administrative municipality Asker, Viken (also known as Greater Asker) in Viken county, ...
. Competition is offered from other means of ground transport and by Vy who operate trains from and to the airport. This includes one hourly departure with line L12 of the
Oslo Commuter Rail Oslo Commuter Rail ( no, Lokaltog Østlandet) is a commuter rail centered in Oslo, Norway, connecting the capital to six counties in Eastern Norway. The system is operated by Vy (formerly NSB) and its subsidiary Vy Gjøvikbanen, using Class 6 ...
north to
Eidsvoll Eidsvoll (; sometimes written as ''Eidsvold'') is a municipality in Akershus in Viken county, Norway. It is part of the Romerike traditional region. The administrative centre of the municipality is the village of Sundet. General information ...
and south to Oslo,
Drammen Drammen () is a city and municipality in Viken, Norway. The port and river city of Drammen is centrally located in the south-eastern and most populated part of Norway. Drammen municipality also includes smaller towns and villages such as Konne ...
and
Kongsberg Kongsberg () is a historical mining town and municipality in Buskerud, Viken county, Norway. The city is located on the river Numedalslågen at the entrance to the valley of Numedal. Kongsberg has been a centre of silver mining, arms produ ...
; two regional trains (line R10 and R11) hourly north to
Eidsvoll Eidsvoll (; sometimes written as ''Eidsvold'') is a municipality in Akershus in Viken county, Norway. It is part of the Romerike traditional region. The administrative centre of the municipality is the village of Sundet. General information ...
and
Lillehammer Lillehammer () is a municipality in Innlandet county, Norway. It is located in the traditional district of Gudbrandsdal. The administrative centre of the municipality is the town of Lillehammer. Some of the more notable villages in the munic ...
and south to Drammen and
Vestfold Vestfold is a traditional region, a former county and a current electoral district in Eastern Norway. In 2020 the county became part of the much larger county of Vestfold og Telemark. Located on the western shore of the Oslofjord, it bordered ...
; and five daily express trains to Dombås and Trondheim calling Oslo Airport Station, including one night train (although the express trains to Trondheim do not accept passengers only travelling between Oslo and Gardermoen). The price of a ticket to Oslo is NOK 180, though higher if departing from Sandvika, Asker and Drammen. Reduced fares with 50% discount are offered to senior citizens, children, youth under 21 years, students, benefit recipients and military personnel. Flytoget tickets are not valid on Vy trains, and vice versa. Vy tickets are generally cheaper, though not for some groups with reduced fare; for instance students are granted a greater discount with Flytoget than with Vy. Ticket can either be bought at
vending machine A vending machine is an automated machine that provides items such as snacks, beverages, cigarettes, and lottery tickets to consumers after cash, a credit card, or other forms of payment are inserted into the machine or otherwise made. The fi ...
s or as
e-ticket An electronic ticket is a method of ticket entry, processing, and marketing for companies in the airline, railways and other transport and entertainment industries. Airline ticket E-tickets in the airline industry were devised in about 1994, and ...
s; there is no seat reservation. Flytoget transported 5.4 million passengers in 2007, a 34% market share of airport ground transport. Flytoget boasts a high service quality, with 96% of departures arriving within 3 minutes of schedule and only 0.4% of departures canceled. Part of this is due to the airport express trains receiving priority over other trains in the limited capacity around Oslo. Flytoget was announced to have the most satisfied, and the fourth most loyal customers of all Norwegian companies in 2008, by the customer satisfaction survey conducted by the Norwegian School of Management. The same year Flytoget was declared the best place of work in Norway by ''Great Place to Work''. During the 2007 recruitment half of the newly educated train divers chose Flytoget over Vy, mostly due to higher wages.


Stations


Incidents

Several deaths have taken place on the route, but only one due to an accident. In 1999, an employee of the National Rail Administration was killed by a train because it was operating at instead of the temporarily reduced limit of ; Flytoget was fined for not informing the engineer of the speed limit reduction. Several other deaths on the line have been classified as
suicide Suicide is the act of intentionally causing one's own death. Mental disorders (including depression, bipolar disorder, schizophrenia, personality disorders, anxiety disorders), physical disorders (such as chronic fatigue syndrome), and ...
s, and so are not in the accident statistics; they do however cause delays on all services for hours after the incident takes place. In 2000–01, Flytoget experienced three derailments with empty trains at Gardermoen; one caused by the engineer falling asleep and two by the train passing a red light. No more such accidents occurred after
automatic Train Control Automatic train control (ATC) is a general class of train protection systems for railways that involves a speed control mechanism in response to external inputs. For example, a system could effect an emergency brake application if the driver d ...
was installed in 2001. Delays have been experienced many times by travelers due to technical problems on the infrastructure. In particular the old line west of Oslo causes much delay, and the National Rail Administration performed during 2008 a NOK 100 million upgrade to the Oslo Tunnel to ensure better performance. But problems also incur on the new sections, regularly delaying service or capacity, and forcing Flytoget to operate fewer departures. In total 96% of departures arrived within 3 minutes of schedule and 0.4% of departures were canceled in 2007.
Pickpocketing Pickpocketing is a form of larceny that involves the stealing of money or other valuables from the person or a victim's pocket without them noticing the theft at the time. It may involve considerable dexterity and a knack for misdirection. A ...
has been a problem since the start; even the Chief of Police in Oslo has been robbed on the train. The train has also been the target of sabotage, and embezzlement for NOK 1 million by an employed ticket salesman, who found a way to print two tickets with the system only charging for one, by turning off and on the ticket printer. When
Al Gore Albert Arnold Gore Jr. (born March 31, 1948) is an American politician, businessman, and environmentalist who served as the 45th vice president of the United States from 1993 to 2001 under President Bill Clinton. Gore was the Democratic ...
came to Oslo to receive his
Nobel Peace Prize The Nobel Peace Prize is one of the five Nobel Prizes established by the will of Swedish industrialist, inventor and armaments (military weapons and equipment) manufacturer Alfred Nobel, along with the prizes in Chemistry, Physics, Physiolo ...
on 7 December 2007, he used the Airport Express Train to make his journey as environmentally friendly as possible. The company has initiated a program to ensure better diet for the employees; this had made several lose weight and has reduced the level of sick leave from 12 to 8%. In 2005–07, a program to reduce the energy use of the trains through smarter operation reduced energy consumption by 15%. During the 2010 volcano air travel disruption, the Gardermoen airport was closed for a period, and the Flytoget trains were used by NSB instead, to give extra train capacity for long-distance routes.


Rolling stock


Class 71

The company operates sixteen Class 71 three-car
electric multiple unit An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number ...
s delivered in 1997–98, and built domestically by Adtranz at Strømmen based on carbodies built in Adtranz factory in
Kalmar Kalmar (, , ) is a city in the southeast of Sweden, situated by the Baltic Sea. It had 36,392 inhabitants in 2010 and is the seat of Kalmar Municipality. It is also the capital of Kalmar County, which comprises 12 municipalities with a total of ...
. They are based on the Swedish X2 operated by SJ in their
X 2000 X 2000, also called SJ X2 or simply as X2, is an electric tilting train operated by SJ in Sweden. It was constructed by Kalmar Verkstad in Kalmar, Sweden (prior to the company being bought by Adtranz in 1996) and launched in 1990 as a ...
intercity service, and developed by
Kalmar Verkstad Kalmar Verkstad AB (''KVAB'') was a Swedish train and automobile manufacturer in Kalmar, Sweden that made the Tjorven and Terminal. KVAB was founded in 1902 and closed in 2005 by Bombardier. History and products KVAB's core business was train ...
during the 1980s. The Class 71 are nearly identical to the NSB Class 73, save the 71-series lacking one car and tilting mechanism, and a different interior. Both have chosen to not use the original
locomotive A locomotive or engine is a rail transport vehicle that provides the motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, motor coach, railcar or power car; the ...
design, instead installing one powered
bogie A bogie ( ) (in some senses called a truck in North American English) is a chassis or framework that carries a wheelset, attached to a vehicle—a modular subassembly of wheels and axles. Bogies take various forms in various modes of transp ...
in each car. The 71-series is built for a maximum operating speed of , but has achieved higher speeds in test runs. Among the features are pressure-tight cabins to allow comfortable travel through tunnels at high speeds, and step-free access to the cars. Instead, steps are inside the trains; this has been criticized to be in non-conformance with public
accessibility Accessibility is the design of products, devices, services, vehicles, or environments so as to be usable by people with disabilities. The concept of accessible design and practice of accessible development ensures both "direct access" (i. ...
policy. The multiple units can only operate in fixed sets of three cars, but up to three sets can be run in multiple. Flytoget regularly uses double sets to create six-car trains. In 2008–09, all units will be refit with an additional middle car by
Bombardier Transportation Bombardier Transportation was a Canadian-German rolling stock and rail transport manufacturer, headquartered in Berlin, Germany. It was one of the world's largest companies in the rail vehicle and equipment manufacturing and servicing industry ...
, increasing capacity by 40% to 244 seats. Unlike the Class 71, the sister trains in service with NSB were prone to trouble, having to operate on hundred-year-old infrastructure on cross-mountain services; the Class 71 has more lenient operating conditions thanks to better infrastructure. The only incident to ground all the BM71 trains occurred on the 17 June 2000 at Nelaug when a Class 73 train operated by NSB
derail A derail or derailer is a device used to prevent fouling (blocking or compromising) of a rail track (or collision with anything present on the track, such as a person, or a train) by unauthorized movements of trains or unattended rolling stock. ...
ed because of stress on the axle. Unlike the NSB trains, the airport express trains were back in service the next day, while the 73-series had to wait another month. On 24 January 2004 a unit had to be taken out of service due to smoke from a stressed bearing—within days the bearings were replaced on all units.


Class 78

Flytoget purchased eight new 4-car
CAF Oaris Oaris is a modular high-speed train platform developed by the Spanish manufacturer CAF. Technical details Oaris is a non-articulated electric multiple unit with distributed traction, enabling 4-car, 6-car and 8-car configurations. Each car hav ...
EMUs from the Spanish manufacturer CAF. They started operation in June 2021. Even though the EMU's maximum speed is , the infrastructure limits the speed to . The trainsets delivered to Flytoget were withdrawn from service after 19 days of operation due to discovery of cracks in the chassis.


Future


New tracks

There are plans to build two more tracks from Lysaker to Oslo Central Station, including a new tunnel under central Oslo. This project is not decided.


References


External links

* {{Good article High-speed rail in Norway Railway companies of Norway Railway companies established in 1992 Rail transport in Oslo Rail transport in Viken Airport rail links 1992 establishments in Norway Railway services introduced in 1998 Oslo Airport, Gardermoen