Mälardalstrafik
Swedish publicly owned regional rail transport manager and the organization behind the Mälartåg network.
Last updated August 24, 2026
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Overview
Mälardalstrafik is a Swedish regional rail transport company responsible for managing and developing train services in the Stockholm–Mälaren region. Its activities are carried out on behalf of six regional public transport authorities: Stockholm, Sörmland, Uppsala County, Västmanland, Örebro County and Östergötland. The organization sets the strategic framework for regional rail services, including service levels, fares and rolling-stock procurement, while train operations are delivered by contracted railway companies. The consumer-facing rail service is branded Mälartåg, a name that refers to trains serving the Lake Mälaren region. Mälardalstrafik also offers Movingo, a period-ticket product intended for commuters who combine regional rail with local public transport. Movingo was introduced alongside the expanded Mälartåg system and is valid across participating counties and associated public transport services under the applicable ticket arrangements. Mälardalstrafik’s current network consists of five principal regional routes, with additional peak-period service between Stockholm and Uppsala. The network covers approximately 1,060 kilometres and serves 44 stations. It links Stockholm with cities and transport centres including Uppsala, Gävle, Västerås, Eskilstuna, Nyköping, Norrköping, Linköping, Örebro and Hallsberg, and also provides service to Stockholm Arlanda Airport. The system carries approximately 12.5 million passengers annually, according to the referenced overview. The organization’s modern role developed from earlier attempts to coordinate regional railway services across Mälardalen. A predecessor, Tåg i Mälardalen AB, was established in 1991 to examine whether train traffic in the region could be managed through a unified structure. In 1995, cooperation with Swedish State Railways, later SJ, led to the creation of Trafik i Mälardalen AB. That arrangement supported coordinated timetables and ticketing on regional and InterCity services, but ended on 30 September 2017. A new regional rail strategy gained momentum after the participating authorities agreed in 2013 to develop services jointly. In 2014, the authorities decided to increase regional train traffic by roughly 30 percent and to acquire additional rolling stock. The resulting service expansion produced the Mälartåg network and the Movingo ticket, both launched on 30 September 2017. Mälardalstrafik subsequently built a dedicated fleet, mainly consisting of Stadler ER1 double-deck electric multiple units, supplemented by Regina X50 trains inherited through the integration of Upptåget. Mälardalstrafik does not normally operate trains directly with its own operating workforce. Instead, it procures train operations through contracts. SJ operated services from 2017 to 2021, MTR operated them from December 2021 until June 2024, and Transdev assumed responsibility under a temporary emergency agreement from 16 June 2024. The referenced material states that VR Group is scheduled to begin operating Mälartåg services in December 2026. Mälardalstrafik remains responsible for the public-service framework, network development and rolling-stock arrangements, while the contracted operator supplies operational staff and day-to-day train operations.
History
Mälardalstrafik’s institutional background lies in efforts to coordinate regional railway services in the Mälardalen area of central Sweden. In 1991, Tåg i Mälardalen AB was formed to investigate whether train traffic across the region could be managed through a common structure. The work reflected the region’s need for better coordination between Stockholm and neighbouring counties, where travel patterns crossed administrative boundaries. In 1995, the initiative resulted in an agreement with SJ, the Swedish state railway operator. Trafik i Mälardalen AB was established as a jointly owned company, with SJ and Mälardalstrafik MÄLAB AB each holding half of the company. Its functions included coordinating train operations and ticketing. Through the arrangement, passengers could use tickets on SJ Regional and InterCity trains across important corridors linking places such as Linköping, Norrköping, Stockholm and Uppsala. The cooperation continued until 30 September 2017. A more comprehensive regional model emerged in the 2010s. In December 2013, six public transport authorities in the Mälardalen region agreed to work together on the development of eastern Sweden’s train services. Progress was temporarily delayed by opposition from SJ and associated legal issues, but the regional authorities eventually continued with the programme. In June 2014, they decided to increase train traffic by approximately 30 percent and to obtain additional trains. The fleet and service expansion led to the creation of the Mälartåg operating concept. Mälardalstrafik ordered 33 Stadler double-deck electric trainsets in 2016–2017, with deliveries beginning in 2018. Mälartåg services and the Movingo period ticket were introduced on 30 September 2017. Movingo was designed to make commuting across county boundaries easier by combining regional rail travel with local public transport in the participating areas. SJ initially operated the Mälartåg services under contract from 2017 to 2021. During the early period, the service used SJ’s existing equipment, including locomotive-hauled carriages and electric multiple units, while Mälardalstrafik progressively introduced its own procured fleet. MTR Corporation won the next operating contract in December 2020, and began operating Mälartåg on 12 December 2021. The contract was originally planned to run through December 2029, with a possible one-year extension. MTR later announced that it would terminate the agreement early. On 22 February 2024, the company disclosed the early end of its Mälartåg contract, following operational difficulties. Transdev was selected to provide an interim solution and took over the complete Mälartåg service on 16 June 2024 under a two-year emergency agreement. The handover also transferred approximately 700 Mälartåg employees from MTR to Transdev. Mälardalstrafik’s operating model separates public transport planning from train operation. The company works with its six owner regions to define fares and service levels, manages the regional rail concept and procures rolling stock. Contracted operators conduct the services and employ the operational workforce. This arrangement allows the public authorities to retain control over network policy while using competitive or emergency procurements for delivery. Mälartåg operates five main routes over a network of about 1,060 kilometres and 44 stations. The routes connect Stockholm with Uppsala, Gävle, Örebro, Hallsberg, Västerås, Eskilstuna, Katrineholm, Nyköping, Norrköping and Linköping, with some services reaching Arlanda Airport. The principal fleet is the Stadler ER1, a Swedish-adapted version of the KISS double-deck electric multiple unit. Six Regina X50 trains were added after Upptåget was integrated into Mälartåg in June 2022. The referenced material further states that VR Group is expected to begin operating the network in December 2026.
- 2024
Transdev begins interim operations
[1]Transdev took over Mälartåg operations on 16 June under a temporary emergency agreement.
- 2022
Upptåget integrated into Mälartåg
[1]The Upptåget service was integrated into Mälartåg on 12 June, adding eight ER1 units and six Regina X50 trains to the operating fleet.
- 2019
First ER1 trains enter service
[1]The first Stadler ER1 double-deck electric multiple units entered passenger service on 15 December, initially on the Arboga–Eskilstuna–Stockholm corridor.
- 2017
Mälartåg and Movingo introduced
[1]The Mälartåg service concept and Movingo period ticket launched on 30 September.
- 2014
Regional rail expansion approved
[1]The participating authorities decided to increase Mälardalen train traffic by approximately 30 percent and acquire additional rolling stock.
- 2013
Six regional authorities agree to cooperate
[1]Six public transport authorities reached an agreement to develop regional rail services in eastern Sweden.
- 1995
Trafik i Mälardalen cooperation begins
[1]A jointly owned company involving SJ and Mälardalstrafik MÄLAB AB began coordinating regional services and ticketing.
- 1991
Tåg i Mälardalen established
[1]A predecessor organization was established to examine unified management of regional train services in Mälardalen.
Products and positioning
A publicly owned regional transport coordinator focused on integrated, cross-county rail mobility in the Stockholm–Mälaren region.
Regional rail service · 2017
Mälartåg
Mälartåg is Mälardalstrafik’s passenger-facing regional rail network in central Sweden. It consists of five principal lines and peak-period Stockholm–Uppsala services, covering about 1,060 kilometres and 44 stations. The network provides cross-county connections between Stockholm and cities including Uppsala, Gävle, Västerås, Eskilstuna, Örebro, Nyköping, Norrköping and Linköping, with service also reaching Stockholm Arlanda Airport.
Period ticket · 2017
Movingo
Movingo is a regional period-ticket product introduced with the Mälartåg expansion. It is intended for commuters travelling across county boundaries and combines access to eligible regional rail services with local public transport in the participating counties, subject to the applicable ticket conditions.
Electric multiple unit · 2019
Stadler ER1
The ER1 is Mälartåg’s principal train type. It is a four-car double-deck electric multiple unit from Stadler’s KISS family, adapted for Swedish operating conditions. Design features address severe winter weather, including operation in very low temperatures, snow-management equipment and measures intended to reduce freezing around the underframe and inter-car connections. The trains are owned by Transitio AB and leased for Mälartåg services.
Electric multiple unit
Regina X50
The Regina X50 units are electric regional trains dating from the early 2000s. Mälartåg uses six of these trains, mainly on the Linköping–Katrineholm–Eskilstuna–Västerås–Sala corridor. They entered the Mälartåg fleet through the integration of Upptåget in 2022 and were subsequently repainted in Mälartåg livery.
Brand decisions
2022
Integrate Upptåget into MälartågStrategyBackground
The regional rail structure was reorganized to bring Upptåget services into the Mälartåg network.
Action taken
Mälardalstrafik integrated Upptåget on 12 June and added associated ER1 and Regina X50 trains.
Aftermath
The integration expanded the Mälartåg operating area and fleet.
2017
Launch Mälartåg and MovingoProduct launchBackground
The regional authorities needed a unified service identity and a cross-county ticket product to support the expanded rail network.
Action taken
Mälardalstrafik introduced Mälartåg services and launched Movingo period tickets on 30 September.
Aftermath
The two offerings became the principal passenger-facing components of the regional rail system.
2017
Procure Stadler ER1 trainsOtherBackground
The planned service increase required more capacity and a fleet adapted to Swedish regional railway conditions.
Action taken
Mälardalstrafik ordered 33 double-deck electric trainsets from Stadler, with deliveries beginning in 2018.
Aftermath
The ER1 became the main train type used by Mälartåg, with the first units entering service in December 2019.
2014
Approve a major regional rail expansionStrategyBackground
The participating regional authorities sought stronger rail connections across the Mälardalen area and agreed to increase train traffic by approximately 30 percent.
Action taken
They approved an expansion programme involving additional services and the procurement of new trains.
Aftermath
The programme led to the Mälartåg service concept, the Movingo ticket and the acquisition of a dedicated modern fleet.
Sources2 sources
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