Stockholm commuter rail
| Company type | Public transport network |
|---|---|
| Industry | Rail transport |
| Founded | 1968 |
| Headquarters | Stockholm , Sweden |
Area served | Stockholm County, Sweden |
| Owner | Storstockholms Lokaltrafik (oversight) |
| Parent | Swedish Transport Administration (infrastructure), SJ AB (operations since March 2024) |
| Website | sl |
Stockholm commuter rail () constitutes the commuter rail network serving Stockholm County, Sweden. As a crucial component of public transport in Stockholm, it is overseen by Storstockholms Lokaltrafik. While the state-owned railway infrastructure is managed by the Swedish Transport Administration, operational responsibilities have been assigned to SJ AB since March 2024.
Early services and initial routes
The operation of local trains on Stockholm’s mainline railways dates back to the late 1800s, initially under the administration of Swedish State Railways. In the late 1960s, control transitioned to Stockholm County, integrating ticketing with Stockholm Transport. Investments were directed towards acquiring new rolling stock and upgrading stations to shape a commuter rail system resembling a metro. Originally named SL förortståg (SL suburban train), later rebranded as SL lokaltåg (SL local/commuter train), the network adopted its official title, Stockholms pendeltåg, during the 1980s.
At its inception, service operated along a single line from Södertälje södra (currently Södertälje Hamn) to Kungsängen via Stockholm Central Station. On 1 June 1969, the system expanded with a branch extending to Märsta, while trains from Kungsängen terminated at Stockholm C. The addition of a branch to Västerhaninge occurred in 1975, including a shuttle connection to Nynäshamn. Subsequently, trains on the Kungsängen branch ended their routes at Västerhaninge, forming what is now part of Line 35.
Enhancements and frequency improvements
Between 1986 and 1996, significant infrastructure improvements took place: single-track segments were doubled, and some double-track stretches were expanded to four tracks to minimize conflicts with other railway operations. Service intervals were progressively shortened, so by 2001 most stations enjoyed trains every 15 minutes, supplemented by additional services during peak periods.
In 2001, the line extended northwest from Kungsängen reaching Bålsta. The southern infill station at Årstaberg commenced operations in 2006 to facilitate interchange with the newly introduced Tvärbanan tram line. On 18 August 2008, a new stop at Gröndalsviken was inaugurated on the southeastern shuttle running between Västerhaninge and Nynäshamn.
Link to Arlanda Airport
Since 9 December 2012, commuter trains have provided service to Stockholm Arlanda Airport, enabling journeys of approximately 38 minutes to Stockholm C and 18 minutes to Uppsala C. Planning for this connection began in December 2007 as a complement to the existing Arlanda Express (operating since 1999) and bus routes from Märsta. The project required coordination between Stockholm Transport and Arlanda Express, which held track usage rights.
Stockholm City Line and station developments
Construction of an underground rail tunnel beneath central Stockholm commenced in 2008 and was completed on 10 July 2017. The Stockholm City Line (Citybanan) exclusively accommodates Pendeltåg services, segregating commuter trains from long-distance traffic within the city. This separation alleviates congestion and permits higher service frequencies, benefiting Stockholm Transport while enhancing capacity throughout Sweden’s rail network. As part of this initiative, new subterranean stations were established at Stockholm City Station (located beneath T-Centralen) and Stockholm Odenplan, which replaced the former Karlberg Station.
On 1 April 2019, Vega opened along the Nynäs Line within Haninge Municipality, situated between Skogås and Handen stations after nearly four years of construction. The station’s name pays tribute to a former stop on the same line that operated from 1929 until 1973 at a different site.
Operational contractors
Since the year 2000, the management of Stockholm's commuter rail has been outsourced to private operators. The initial franchise was held by Citypendeln from 2000 until 2006, succeeded by Stockholmståg, a subsidiary of SJ AB, which operated from 2006 to 2016. On 11 December 2016, MTR Nordic assumed control under a decade-long agreement with an option to extend for an additional four years. However, in May 2023, SL opted against prolonging MTR Nordic’s contract past 2026 due to concerns over service performance. As a result, on 1 November 2023, SL granted an urgent contract to SJ AB, which is set to commence operations in March 2024.
Lines
| Line | Route | Duration | Distance | Stations |
|---|---|---|---|---|
| 40 | Uppsala C – Arlanda C – Stockholm City – Södertälje centrum | 1:45 | 25 | |
| 41 | Märsta – Stockholm City – Södertälje centrum | 1:24 | 74 km | 24 |
| 42X | Märsta – Stockholm City – Nynäshamn | 1:35 | 26 | |
| 43 | Bålsta – Stockholm City – Nynäshamn | 1:49 | 105 km | 29 |
| 43X | Kallhäll – Stockholm City – Nynäshamn | 1:25 | 84 km | 21 |
| 44 | Kallhäll – Stockholm City – Tumba | 0:52 | 15 | |
| 48 | Södertälje centrum – Gnesta | 0:24 | 30 km | 6 |
| Complete commuter rail network | 241 km | 54 | ||
Following the rerouting implemented in December 2017, most routes feature two separate lines terminating at different destinations. Certain trains operate as express skip-stop services (lines 42X and 43X), bypassing roughly four stations per journey.
Line 48 links the southwestern stations of Gnesta and Södertälje. Line 40 travels from Uppsala C through Arlanda and Upplands Väsby to Södertälje, utilizing the existing tracks on the Arlanda and East Coast Lines that are shared with regional and long-distance services.
Beyond Västerhaninge, the Nynäshamn route is predominantly single-track but includes passing loops. Since upgrades began in 2013—such as lengthening platforms and adding additional passing points—through services between central Stockholm and Bålsta have been possible without transfers.
Daily operations start at 5 am and continue until midnight Sunday through Thursday, extending until approximately 1:30 am on weekends. The core network lines, 41 and 43, maintain a train frequency of every fifteen minutes during daytime hours and every thirty minutes during early mornings and late evenings. Lines 40 and 48 generally operate at thirty-minute intervals. During peak periods, service frequency increases to an average interval of seven and a half minutes at many stations, with central locations receiving trains every four and a half minutes. Stations farther from the center may experience just one or two trains per hour due to partial route coverage.
As of the year 2022, the Stockholm commuter rail transports around 342,000 passengers on an average weekday—accounting for nearly half of Sweden’s total train ridership when excluding metro and tram networks.
Stations
The system consists of 53 stations, with four situated beyond the borders of Stockholm County. Among these, eight stations offer connections to regional and long-distance rail services, three link to the light-rail tram network Tvärbanan, and four provide transfers to the Stockholm metro. Numerous stations also function as important hubs for local bus routes.
A majority of the stations share a uniform layout: island platforms at ground level equipped with one or two exits, turnstiles, and ticket offices staffed by personnel. Larger interchange points feature multiple platforms to accommodate higher passenger volumes. Stations located south of Västerhaninge and Södertälje tend to be smaller and do not have ticket barriers. Hemfosa is the least frequented station, with an average daily boarding figure around 100.
Starting in 2023, all stations have adopted a train icon as their symbol; previously, a blue "J" was used, complementing the Stockholm Metro’s "T" signage.
Rolling stock
Since the inauguration of the Stockholm City Line (Citybanan) on 10 July 2017, the network exclusively utilizes the X60 Coradia Nordic trains manufactured by Alstom, designed to be compatible with Citybanan’s platform screen doors. A total of seventy-one X60 units were delivered between 2005 and 2008, replacing secondhand X420 trains that were imported from Germany as a temporary capacity solution. A full train set consists of two X60 units coupled together, with a total length of .
In 2016, 46 newer X60B units were introduced to phase out the older X10 models that had been in service since their delivery between 1983 and 1993. Both X60 and X60B trains are capable of reaching a top speed of .
Former rolling stock
- X1 (1968–2011)
- X10 (1983–2017)
- X20/X23 (2001–2002)
- DSB Bn coaches pulled by SJ Rc locomotives (2001–2003)
- X420 (2002–2005)