View source for Stockholm Metro

{{short description|Rapid transit system in Stockholm, Sweden}}
{{Use dmy dates|date=February 2020}}
{{Infobox Public transit
| box_width = 280px
| name = Stockholm Metro
| image = Stockholm metro symbol.svg
| imagesize = 80px
| image2 = SL C30 tekniska högskolan - 20240420 - 25.jpg
| imagesize2 = 280px
| caption2 = A [[SL C30|C30]] train on [[red line (Stockholm Metro)|line 14]] at [[Tekniska högskolan metro station|Tekniska högskolan]]
| image3 = T Centralen May 2014.jpg
| imagesize3 = 280px
| caption3 = [[blue line (Stockholm Metro)|Blue Line]] platforms at [[T-Centralen]]
| native_name = ''Stockholms tunnelbana''
| locale = [[Stockholm]], [[Sweden]]
| transit_type = [[Rapid transit]]
| owner = [[Storstockholms Lokaltrafik]]
([[Region Stockholm]])
| lines = 3 Lines (7 Routes)
| stations = 100<ref name="SL-AR2006-pg17">{{Cite web |url=http://www.sl.se/upload/rapporter/uploads/arsredovisning%20eng%202006.pdf |title=SL Annual Report 2006 |publisher=[[Storstockholms Lokaltrafik]] (SL) |page=17 |date=21 June 2007 |access-date=2014-05-21 |archive-url=https://web.archive.org/web/20070927003006/http://www.sl.se/upload/rapporter/uploads/arsredovisning%20eng%202006.pdf |archive-date=2007-09-27}}</ref>
| ridership = 1 265 900 (2019)<ref name="MTR2017">{{cite web |url=http://www.mtrnordic.se/om-oss/hallbarhet/hallbarhetsredovisning2017/2017-aret-i-korthet/ |title=Hållbarhetsredovisning 2017, året i korthet |publisher=[[MTR Nordic]] |language=sv |year=2018 |access-date=2018-12-02 |archive-date=2 December 2018 |archive-url=https://web.archive.org/web/20181202155143/http://www.mtrnordic.se/om-oss/hallbarhet/hallbarhetsredovisning2017/2017-aret-i-korthet/ |url-status=dead }}</ref>
| annual_ridership = 462 million (2019)<ref name="MTR2017" />
| website = {{url|sl.se/en/|SL Official Site}} {{in lang|en}}
| began_operation = {{Start date and age|1933|09|30}} (as [[premetro]])<br/> {{Start date and age|1950|10|01}} (as metro)
| operator = [[MTR Corporation|MTR]]
| vehicles = 
| train_length = {{convert|140|m|ftin}}
| headway = 
| system_length = {{convert|105.7|km|mi|1|abbr=on}}<ref name="SL-AR2006-pg17" />
| track_gauge = {{track gauge|sg|allk=on}}
| el = 650–{{750 V DC|conductor=y}}<ref group=Note name=Note01/>
| top_speed = {{convert|80|km/h|abbr=on}}
| map = {{Stockholm metro route diagram}}
| map_state = collapsed
| line_number = {{ubl|class=nowrap
 | 10, 11 (Blue Line)<br>
 | 13, 14 (Red Line)<br>
 | 17, 18, 19 (Green Line)}}
}}

The '''Stockholm Metro''' ({{langx|sv|Stockholms tunnelbana}}) is a [[rapid transit]] system in [[Stockholm]], the capital city of [[Sweden]]. Its first line opened in 1950 as the first metro line in the [[Nordic countries]]. Today, the system consists of three lines and 100 stations, of which 47 are underground and 53 above ground. The system is owned by [[Region Stockholm]] via [[Storstockholms Lokaltrafik|SL]], the [[Transportation authority|public transport authority]] for [[Stockholm County]].<ref name=":1">{{Cite web |title=Stockholm – EMTA |url=https://www.emta.com/network/stockholm/ |access-date=2024-09-20 |website=www.emta.com}}</ref> It is the only metro system in Sweden.

The metro's three coloured lines, [[Green line (Stockholm Metro)|Green]], [[Red line (Stockholm Metro)|Red]], and [[Blue line (Stockholm Metro)|Blue]], together form seven routes with different termini. All of these routes pass through the city centre, creating a highly centralised network. The main interchange for all three lines is [[T-Centralen]] station, where they intersect. In addition to T-Centralen, the system has three other interchange stations: [[Fridhemsplan metro station|Fridhemsplan]], [[Slussen metro station|Slussen]], and [[Gamla stan metro station|Gamla stan]]. Various extensions to the system are currently under construction, An extension to the north-west of Blue Line is expected to open in 2027, while extensions to its south are expected to open in 2030. Construction of a new [[Yellow line (Stockholm Metro)|Yellow Line]] to the west of the city centre is scheduled to start in 2025.<ref>{{Cite web |title=12 nya förbindelser aktuella för utbyggd tunnelbana i framtiden |url=https://www.jarnvagsnyheter.se/20240917/16603/12-nya-forbindelser-aktuella-utbyggd-tunnelbana-i-framtiden |access-date=2024-09-20 |website=www.jarnvagsnyheter.se |language=sv}}</ref>

In 2019, the Stockholm metro transported 462 million passengers, equivalent to approximately 1.27 million on a typical weekday.<ref name="Trafikrelaterat2019">[https://miljobarometern.stockholm.se/content/Trafikrelaterat/sl_och_regionen_2019.pdf], p. 67</ref> The {{convert|105.7|km|mi|adj=mid|-long}} metro system has been operated by [[MTR Corporation|MTR]] since 2 November 2009, whose contract expires at the end of 2024.<ref>{{Cite news |last=Nyheter |first=S. V. T. |date=2024-01-23 |title=Nytt bolag tar över tunnelbanan – efter MTR |url=https://www.svt.se/nyheter/lokalt/stockholm/nytt-bolag-tar-over-tunnelbanan-efter-mtr |access-date=2024-09-20 |work=SVT Nyheter |language=sv}}</ref> The system is equipped with [[Turnstile|ticket barriers]]. [[Storstockholms Lokaltrafik|SL]] operates the metro's ticketing system, with ticketing available via the SL app and rechargeable travel cards. [[Contactless payment]] is also accepted at the gates.<ref>{{cite web |title=Contactless transit payments launched across Stockholm |url=https://www.transport-ticketing.com/TT-content-hub/contactless-transit-payments-launched-across-stockholm}}</ref> Ticketing can also be purchased at station booths and select local retailers. SL phased out [[Ticket machine|ticket machines]] on its network in 2022.<ref>{{Cite web |date=2022-03-18 |title=SL:s biljettautomater försvinner – så betalar du för din biljett |url=https://www.dn.se/sverige/sls-biljettautomater-forsvinner-sa-betalar-du-for-din-biljett/ |access-date=2024-09-20 |website=[[Dagens Nyheter]] |language=sv}}</ref>

The Stockholm metro has been referred to as 'the world’s longest art gallery,' featuring decorations at more than 90 of its 100 stations, including sculptures, rock formations, mosaics, paintings, light installations, engravings, and reliefs created by over 150 artists.<ref name=":3">{{cite web |date=7 May 2012 |title=Stockholm Metro: The World's Longest Art Gallery |url=http://twistedsifter.com/2012/05/stockholm-metro-worlds-longest-art-gallery/ |website=twistedsifter.com}}</ref>

==History==

===Before the Metro===
In the late 19th century, Stockholm’s suburbs expanded thanks to the development of local railways such as [[Djursholmsbanan]] and [[Saltsjöbanan]].<ref>{{Cite web |title=T-banans historia {{!}} Djursholmsbanorna |url=https://fordonsradio.se/djursholmsbanorna/ |access-date=2024-09-21 |website=Fordonsradio |language=sv-SE}}</ref><ref>{{Cite web |title=Saltsjöbanan |url=https://sodermalm.one/sickla/saltsjobanan.html |access-date=2024-09-21 |website=Södermalm |language=sv}}</ref> By 1900, electrified trams extended into the city centre, and by 1915 [[Stockholms Spårvägar (1915)|Stockholms Spårvägar (SS)]] was managing a growing tram network, including new suburban lines as the city incorporated areas such as [[Bromma]] and [[Brännkyrka]]. With further suburbs planned, it became evident that trams would not meet the city's future transport needs,<ref name=":0">{{Cite web |title=Stockholms tunnelbana |url=https://people.kth.se/~e95_lra/tunnelbana/gamla/huvud.html#:~:text=Tunnelbanan%20%C3%A4r%20tillsammans%20med%20Pendelt%C3%A5gen,g%C3%B6rs%20av%20ca%20400.000%20resen%C3%A4rer. |access-date=2023-10-23 |website=people.kth.se}}</ref> prompting underground railway proposals. Stockholm's politicians were also inspired by large cities such as [[London]], [[Paris]] and [[New York City|New York]] where metros had already been built.<ref>{{Cite web |title=Stockholms tunnelbana |url=https://people.kth.se/~e95_lra/tunnelbana/gamla/huvud.html |access-date=2024-09-21 |website=people.kth.se}}</ref> Through the 1920s, various investigations were carried out by the city.<ref>{{cite news|date=1910-05-10 |access-date=2022-03-08 |title=Underjordiska banor för hufvudstadens lokaltrafik |newspaper=Dagens Nyheter |url=https://arkivet.dn.se/sok?q=&from=1910-05-10&to=1910-05-10}}</ref> In 1930 a traffic [[committee]] was appointed by Stockholm's city council at the initiative of city councilor [[Yngve Larsson]] with the task of solving the capital's major traffic problems.<ref>{{Cite web |title=T-banans historia {{!}} Inledning |url=https://fordonsradio.se/tunnelbanans-historia/ |access-date=2024-09-21 |website=Fordonsradio |language=sv-SE}}</ref>

===The First Tunnel===
[[File:Tunnelbanebygget (Färgad).jpg|left|thumb|Construction of the Södertunneln in 1933]]
The first step towards an underground transit system was the construction of the Södertunneln tram tunnel under [[Södermalm]].<ref>{{Cite web |title=T-banans historia {{!}} Södertunneln |url=https://fordonsradio.se/sodertunneln/ |access-date=2024-09-21 |website=Fordonsradio |language=sv-SE}}</ref>  Approved by the city council on 30 March 1931, following recommendations from the 1930 Traffic Committee.<ref>Larsson 1977, sid 486 f.</ref> Construction commenced in autumn 1931, and the project, costing 4.5 million kronor, was inaugurated on 30 September 1933.<ref>''[[Svenska Dagbladet|Svenska Dagbladets]] årsbok : 1931'', Stockholm 1932, s. 17, 207</ref> Södertunneln included three stations: [[Slussen metro station|Slussen]], Södra Bantorget (now [[Medborgarplatsen metro station|Medborgarplatsen]]), and Ringvägen (now [[Skanstull metro station|Skanstull]]). The stations were designed by architect Holger Blom and inspired by Berlin’s [[Berlin U-Bahn|U-Bahn]].<ref>{{cite book|first1=Helena|last1=Friman|first2=Göran|last2=Söderström|others=Nordqvist, Sven (illustratör)|title=Stockholm: en historia i kartor och bilder|series=Monografier utgivna av Stockholms stad|year=2008|publisher=[[Wahlström & Widstrand]]|location=[[Stockholm]]|isbn=978-91-46-21843-2|page=189}}</ref> The tunnel operated as a [[premetro]] service with existing tramlines connecting to it. This project marked the first use of the term "Tunnelbanan," and the first use of station entrances distinguished by a "T" in a circle.<ref>{{Cite web |last=Poppius |date=2018-05-29 |title=T-symbolen - en lysande vägvisare i 60 år |url=https://slussenstidning.se/new/webbredaktor-vt18/2018/05/29/t-symbolen-en-lysande-vagvisare-i-60-ar/ |access-date=2024-09-21 |website=Webbredaktör vt18 |language=sv-SE}}</ref>

===Plans for a Full-Scale Metro System===
The 1930s also brought significant changes to the political and economic landscape of housing construction in Stockholm, with a new municipal plan for multi-family dwellings in the suburbs.  A considerable debate unfolded across political parties, but a metro system came to be viewed as the optimal solution to the city’s housing crisis and increasing congestion in the city centre.<ref name="tuben">Jonsson et al, sid 123, 241</ref> 

In 1941, [[Stockholm Municipality|Stockholm City Council]] voted to develop a large-scale metro system, based on plans from the 1930 Traffic Committee and a further 1940 report.<ref>{{Cite web |last=Hayen |first=Mats |date=2019-03-27 |title=En bana för framtiden |url=https://www.bizstories.se/naringslivet/en-bana-for-framtiden/ |access-date=2024-09-21 |website=Bizstories |language=sv-SE}}</ref> This decision called for the Södertunneln and southern suburban tram lines to be extended to [[Norrmalm]], connecting with the western suburban tram lines through a tunnel under [[Sveavägen]].<ref>{{Cite web |title=T-banans historia {{!}} Inledning |url=https://fordonsradio.se/tunnelbanans-historia/ |access-date=2024-09-21 |website=Fordonsradio |language=sv-SE}}</ref> 

===Initial Construction===
The Stockholm Metro's formal construction began in 1944, following the 1941 city council decision. The first focus was extending the Södertunneln southward, beyond [[Gullmarsplan metro station|Gullmarsplan]]. During this period, several other lines were built to [[premetro]] standards,<ref name="LURS">{{cite book |last1=Skelsey |first1=Geoffrey |title=Brussels Metro to Grow As Pre-metro Shrinks |date=2018 |publisher=London Underground Railway Society |page=3 |quote=Such eventual upgrading of tram subways to Metro  operation was widely advocated at this period, but conversion of Line 1 of the Brussels system in 1976  was the first after 1950 (in Stockholm) to actually take effect.}}</ref><ref name="PedObs">[https://pedestrianobservations.com/2019/07/31/what-is-light-rail-anyway/ What is Light Rail, Anyway?], retrieved 2024-06-03.</ref> including routes from [[Kristineberg metro station|Kristineberg]] to [[Islandstorget metro station|Islandstorget]], using the new [[Tranebergsbron]] bridge; [[Skanstull metro station|Skanstull]] to [[Blåsut metro station|Blåsut]], including construction of the [[Skanstullsbron]] bridge; and [[Telefonplan metro station|Telefonplan]] to [[Hägerstensåsen]]. 

In late 1944, a population study revealed that Stockholm’s rapid population growth would demand greater capacity for the planned metro. As a result, two significant decisions were made: the line between [[T-Centralen]] and [[Slussen metro station|Slussen]] would be constructed with four tracks instead of two, and platform lengths were increased from six-car (100 meters) to eight-car (145 meters) to accommodate more passengers.<ref name=":0" />

===Full Metro===
[[Image:Constructing the Stockholm Metro in 1957.jpg|thumb|left|Construction of a section of the metro just north of T-Centralen in 1957]]The first part of the metro was opened on 1 October 1950, from [[Slussen metro station|Slussen]] to [[Hökarängen metro station|Hökarängen]], having been converted from tram to metro operation. In 1951, a second branch from Slussen to [[Stureby metro station|Stureby]] was opened (which was also tram operated until then). In 1952, a second line, from [[Hötorget metro station|Hötorget]] to the western suburbs was opened. In 1957, the two parts were connected with a line between [[Hötorget metro station|Hötorget]] and Slussen, with two new intermediate stations: T-Centralen, adjacent to [[Stockholm Central Station|Stockholm Central station]], [[Gamla stan metro station|Gamla stan]] in Stockholm's [[Gamla stan|old town]], forming the Green Line. Through the 1950s, the Green Line was extended piece by piece.

The Red Line was opened in 1964, from T-Centralen over Liljeholmen ending in [[Fruängen]] and [[Örnsberg metro station|Örnsberg]], both in the Southwest.<ref>See "Technical Description of the Stockholm Underground Railway 1964," published by Stockholm's Public Works Department and the Stockholm Passenger Transport Co. At that time, the lines were known as Line 1 and Line 2.</ref> It was extended piece by piece until 1978, when it reached [[Mörby centrum]] via a bridge over [[Stocksundet]] sea strait.

The third and final system, the Blue Line, was opened in 1975, with two lines running northwest from the city center. As the construction requirements have become more strict over the years, newer segments have more [[File:Tunnelbaneplan för Stockholm 1965.jpg|thumb|left|The 1965 {{ill|Metropolitan Railway Plan for Stockholm|sv|Tunnelbaneplan för Stockholm 1965}} which follows the current route alignments closely]]tunnels than older ones, and the Blue Line is almost entirely tunnelled. The latest addition to the whole network, [[Skarpnäck metro station|Skarpnäck station]], was opened in 1994.

==Network==

===Stations===
{{See also|List of Stockholm metro stations}}
[[Image:Rådhuset metro station June 2015.jpg|thumb|Escalators at Rådhuset station on the blue line]]
There are 100 stations in use in the Stockholm metro (of which 47 are underground). One station, [[Kymlinge]], was built but never put into use. One station has been taken out of use and demolished. The old surface station at [[Bagarmossen metro station|Bagarmossen]] was demolished and replaced with a new underground station, this being prior to the metro extension to the [[Skarpnäck metro station]].

The Stockholm metro is well known for the decoration of its stations. Several of the stations (especially on the Blue Line) are left with the [[bedrock]] exposed, crude and unfinished, or as part of the decorations..<ref>{{Cite web |url=http://www.sl.se/templates/Page.aspx?id=4665 |title=Art and architecture in the Metro |publisher=[[Storstockholms Lokaltrafik]] |access-date=2007-07-14 |url-status=dead |archive-url=https://web.archive.org/web/20070628142942/http://www.sl.se/templates/Page.aspx?id=4665 |archive-date=28 June 2007  }}</ref> 

===Lines===
[[Image:Swe subway switch 20050425 001.jpg|thumb|Tunnels near Östermalmstorg station]]
[[File:Stockholm metrosystem map.svg|thumb|Near-geographically accurate map of the Stockholm metro]]
The following details relate to the present network. The designations "Blue line", etc., have only been used since the late 1970s, and officially only since the 1990s. They originated from the fact that the "blue line" tended to operate newer train stock painted blue, while the "Green line" had older stock in the original green livery. There was never any red painted stock, though, but red (or originally orange) was chosen to differentiate this line from the other two networks on route maps.{{Citation needed|date=September 2024}}

====Green Line====
::{{Main|Green line (Stockholm Metro)}}
The Green line (officially Tunnelbana 1, or "Metro 1") has three routes and 49 stations: 12 underground (nine concrete, three rock) and 37 above ground stations. It is {{convert|41.256|km}} long. It was opened on 1 October 1950 (between Slussen and Hökarängen stations) and is used by 451,000 passengers per workday or 146 million per year (2005)

====Red Line====
::{{Main|Red line (Stockholm Metro)}}
The Red line (Tunnelbana 2) has two routes and 36 stations: 20 underground (four concrete, 16 rock) and 15 above ground stations. It is {{convert|41.238|km}} long (only {{convert|18|m}} shorter than the Green line), and was opened on 5 April 1964. It is used by 394,000 passengers per workday or 128 million per year (2005).

====Blue Line====
::{{Main|Blue line (Stockholm Metro)}}
Blue line (Tunnelbana 3) has two routes and 20 stations: 19 underground (all rock) and one elevated station. It is {{convert|25.516|km}} long. It was opened on 31 August 1975 and is used by 171,000 passengers per workday or 55 million per year (2005).<br />Trains operate from 05:00 to 01:00, with extended all night service on Fridays and Saturdays. All lines have trains every 10 minutes during the day, reduced to every 15 minutes in early mornings and late evenings, and every 30 minutes at night. Additional trains during peak hours gives a train every 5–6 minutes on most stations, with 2–3 minutes between trains on the central parts of the network.

The metro contains four interchanges (''T-Centralen'', ''Slussen'', ''Gamla Stan'' and ''Fridhemsplan'') and lacks any kind of circular or partly circular line (although Stockholm has a semi-circular light rail line, [[Tvärbanan]]). A wide majority of the metro stations are located in suburbs, but the network is centred on T-Centralen where all trains in the entire network pass.

In the past, there have been additional route numbers in use for trains operated on part of a line, or during peak hours only. For example, route 23 was used for a peak relief train for route 13, which in the 1970s was operated between Sätra and Östermalmstorg and during the 1990s between Norsborg and Mörby Centrum.

{| class="wikitable"
! align="center" | Line
! align="left" | Stretch
! align="right" | Travel<br/>time<ref>{{Cite book |title=Stockholm metro timetables |publisher=Storstockholms Lokaltrafik |year=2007}} [http://sl.se/ficktid/vinter/v10.pdf 10] {{webarchive|url=https://web.archive.org/web/20080409040342/http://sl.se/ficktid/vinter/v10.pdf |date=9 April 2008 }} [http://sl.se/ficktid/vinter/v11.pdf 11] {{webarchive|url=https://web.archive.org/web/20080409040346/http://sl.se/ficktid/vinter/v11.pdf |date=9 April 2008 }} [http://sl.se/ficktid/vinter/v13.pdf 13] {{webarchive|url=https://web.archive.org/web/20080409040339/http://sl.se/ficktid/vinter/v13.pdf |date=9 April 2008 }} [http://sl.se/ficktid/vinter/v14.pdf 14] {{webarchive|url=https://web.archive.org/web/20080409040319/http://sl.se/ficktid/vinter/v14.pdf |date=9 April 2008 }} [http://sl.se/ficktid/vinter/v17.pdf 17] {{webarchive|url=https://web.archive.org/web/20080409040315/http://sl.se/ficktid/vinter/v17.pdf |date=9 April 2008 }} [http://sl.se/ficktid/vinter/v18.pdf 18] {{webarchive|url=https://web.archive.org/web/20080409040322/http://sl.se/ficktid/vinter/v18.pdf |date=9 April 2008 }} [http://sl.se/ficktid/vinter/v19.pdf 19] {{webarchive|url=https://web.archive.org/web/20080409040349/http://sl.se/ficktid/vinter/v19.pdf |date=9 April 2008 }}</ref>
! align="right" | Length
! align="right" | Stations (in "[[Stockholm City Centre|innerstan]]")
|-
| align="center" style="color: white; background-color: #{{rail color|Stockholm metro|Blue}}" | '''[[Line 10 (Stockholm metro)|<span style="color:white;">10</span>]]'''
| align="left" | [[Kungsträdgården metro station|Kungsträdgården]]&nbsp;– [[Hjulsta metro station|Hjulsta]]
| align="right" | 23 min
| align="right" | {{convert|15.1|km|mi|abbr=on}}
| align="right" | 14, (5)
|-
| align="center" style="color: white; background-color: #{{rail color|Stockholm metro|Blue}}" | '''[[Line 11 (Stockholm metro)|<span style="color:white;">11</span>]]'''
| align="left" | [[Kungsträdgården metro station|Kungsträdgården]]&nbsp;– [[Akalla metro station|Akalla]]
| align="right" | 22 min
| align="right" | {{convert|15.6|km|mi|abbr=on}}
| align="right" | 12, (5)
|-
| align="center" style="color: white; background-color: #{{rail color|Stockholm metro|Red}}" | '''[[Line 13 (Stockholm metro)|<span style="color:white;">13</span>]]'''
| align="left" | [[Norsborg metro station|Norsborg]]&nbsp;– [[Ropsten metro station|Ropsten]]
| align="right" | 44 min
| align="right" | {{convert|26.6|km|mi|abbr=on}}
| align="right" | 25, (10)
|-
| align="center" style="color: white; background-color: #{{rail color|Stockholm metro|Red}}" | '''[[Line 14 (Stockholm metro)|<span style="color:white;">14</span>]]'''
| align="left" | [[Fruängen metro station|Fruängen]]&nbsp;– [[Mörby centrum metro station|Mörby centrum]]
| align="right" | 33 min
| align="right" | {{convert|19.5|km|mi|abbr=on}}
| align="right" | 19, (9)
|-
| align="center" style="color: white; background-color: #{{rail color|Stockholm metro|Green}}" | '''[[Line 17 (Stockholm metro)|<span style="color:white;">17</span>]]'''
| align="left" | [[Skarpnäck metro station|Skarpnäck]]&nbsp;– [[Åkeshov metro station|Åkeshov]]
| align="right" | 43 min
| align="right" | {{convert|19.6|km|mi|abbr=on}}
| align="right" | 24, (12)
|-
| align="center" style="color: white; background-color: #{{rail color|Stockholm metro|Green}}" | '''[[Line 18 (Stockholm metro)|<span style="color:white;">18</span>]]'''
| align="left" | [[Farsta strand metro station|Farsta strand]]&nbsp;– [[Alvik metro station|Alvik]]
| align="right" | 37 min
| align="right" | {{convert|18.4|km|mi|abbr=on}}
| align="right" | 23, (12)
|-
| align="center" style="color: white; background-color: #{{rail color|Stockholm metro|Green}}" | '''[[Line 19 (Stockholm metro)|<span style="color:white;">19</span>]]'''
| align="left" | [[Hagsätra metro station|Hagsätra]]&nbsp;– [[Hässelby Strand metro station|Hässelby strand]]
| align="right" | 55 min
| align="right" | {{convert|28.6|km|mi|abbr=on}}
| align="right" | 35, (12)
|-
| align="center" colspan="3" align="left" | ''Entire metro network''
| align="right" | ''{{convert|108|km|mi|abbr=on}}''
| align="right" | ''100'',  ''(25)''
|}
There is a connection to the main rail network, which is used for deliveries of new trains and some other purposes. In this case trains are pulled by locomotives since the electrical and other standards are different.<ref>[http://www.postvagnen.com/sjk-forum/showthread.php/4089-Tunnelbanevagn-C30-nu-påväg-Bilder Tunnelbanevagn C30 nu påväg]</ref> This connection consists of a track to [[Tvärbanan]] at the [[Globen metro station|Globen station]] and a rail track from the [[Liljeholmen]] Tvärbanan station to the [[Älvsjö]] railway station.

===Network Map===
{{Rapid transit OSM map
| system_qid   = Q272926
| frame-lat    = 59.32
| frame-long   = 17.98
| frame-width  = 450
| frame-height = 350
| zoom         = 10
| length       = yes
}}

==Rolling stock==
[[File:EU-SE-Stockholm-012.JPG|left|thumb|SL [[SL C20|C20]]]]
[[File:Örnsberg tunnelbana, SL C30, 20240210 - 50.jpg|left|thumb|SL [[SL C30|C30]]]]
The Stockholm metro operates two main types of rolling stock: the [[SL C20]] and [[SL C30]]. Previously, the system used the older [[SL C1|C1]]–C15 trains, collectively known as the Cx stock. These trains were gradually retired, and fully discontinued by 2024 after more than 40 years of service.

Currently, the Stockholm metro operates 271 trainsets of the [[SL C20|C20]] stock and 116 trainsets of the [[SL C30|C30]] stock. The [[Green Line (Stockholm Metro)|Green Line]] exclusively uses the [[SL C20|C20]] stock, while the [[Blue Line (Stockholm Metro)|Blue Line]] also primarily relies on [[SL C20|C20]] trains. The [[Red Line (Stockholm Metro)|Red Line]] uses a mix of [[SL C20|C20]] and [[SL C30|C30]] trainsets. Stockholm metro's trains are based at several depots, including [[Hammarby depot|Hammarby]], [[Högdalsdepån|Högdalen]], and {{ill|Vällingby depot|sv|Vällingbydepån|lt=Vällingby}} depots for the Green Line; [[Norsborg metro station|Norsborg depot]] and [[Nyboda depot]] for the Red Line; and {{ill|Rissne depot|sv|Rissnedepån}} for the Blue Line.

Train configuration varies depending on the stock type, however a full-length train measures approximately {{convert|140|m|ft}} and accommodates around 1,250 passengers, with seating available for 290 to 380 people.<ref name="ss-c20">{{Cite web |title=SL class C20 |url=https://www.sparvagssallskapet.se/vagnhallen/typ.php?ling=en&typ_id=295 |access-date=2008-07-10 |publisher=Svenska Spårvägssällskapet}}</ref><ref name="ss-c20f">{{Cite web |title=SL class C20F |url=https://www.sparvagssallskapet.se/vagnhallen/typ.php?ling=en&typ_id=924 |access-date=2008-07-10 |publisher=Svenska Spårvägssällskapet}}</ref> [[SL C20|C20]] trains are typically composed of two or three trainsets connected in double or triple configurations, resulting in trains with six or nine cars. [[SL C30|C30]] trains consist of two trainsets connected in a double configuration, forming an eight-car train. The now-retired Cx stock operated in six or eight-car configurations. 

The [[Blue line (Stockholm Metro)|Blue Line]], along with the [[Red line (Stockholm Metro)|Red Line]] between [[Stadion metro station|Stadion]] and [[Mörby centrum metro station|Mörby Centrum]], were built with longer platforms to accommodate ten-car Cx stock trains. However, when the [[SL C20|C20]] trains were introduced, it became apparent that configurations of four C20 trainsets—equivalent in length to ten Cx stock cars—were too long for the platforms. As a result, ten-car trains only operated on the Blue Line, where most platforms (except at [[Husby metro station|Husby]]) were designed to accommodate their length.<ref name="ss-c6">{{Cite web |title=SL class C6 |url=https://www.sparvagssallskapet.se/vagnhallen/typ.php?ling=en&typ_id=300 |access-date=2008-07-10 |publisher=Svenska Spårvägssällskapet}}</ref><ref name="ss-c9">{{Cite web |title=SL class C9 |url=https://www.sparvagssallskapet.se/vagnhallen/typ.php?ling=en&typ_id=303 |access-date=2008-07-10 |publisher=Svenska Spårvägssällskapet}}</ref> On the Red Line, most platforms were only long enough to accommodate eight-car Cx stock trains. As a result, ten-car trains were never used in service on the Red Line, except at the six stations between [[Stadion metro station|Stadion]] and [[Mörby centrum metro station|Mörby Centrum]], which could accommodate them.<ref name="ss-c14">{{Cite web |title=SL class C14 |url=https://www.sparvagssallskapet.se/vagnhallen/typ.php?ling=en&typ_id=292 |access-date=2008-07-10 |publisher=Svenska Spårvägssällskapet}}</ref><ref name="ss-c15">{{Cite web |title=SL class C15 |url=https://www.sparvagssallskapet.se/vagnhallen/typ.php?ling=en&typ_id=291 |access-date=2008-07-10 |publisher=Svenska Spårvägssällskapet}}</ref>

The naming convention for rolling stock reflects the system's history: the prefix A denotes motorised trams, B indicates unmotorised tram trailers, and C is used for metro cars. The Stockholm metro traces its origins to a tramway system, and the older sections of the metro operated as tramways for several years before conversion.

===Current rolling stock===

====C20====
{{Main|SL C20}}
The C20 stock (also branded C25 or C20U during refurbishment) is double-[[articulated car|articulated]], {{convert|46.5|m|ftin}} in length, {{convert|2.9|m|ftin}} in width, {{convert|3.8|m|ftin}} in height, and weighs {{convert|67|t|ton}}. It uses only four bogies, two under the middle part, and one under each end part of car. The car takes 126 seated passengers, and 288 standing passengers. Three such units normally form a train.  The C20 stock cars were built between 1997 and 2004 and first entered service in 1998.<ref name="ss-c20" />

A single prototype car designated C20F stock is in use. Built on [[Bombardier Transportation]]'s FICAS technology,<ref>{{Cite web |title=C20 and FICAS on the Bombardier site |url=http://www.bombardier.com/index.jsp?id=1_0&lang=en&file=/en/1_0/1_1/1_1_2_9.jsp |publisher=[[Bombardier Inc.]]}}</ref> it has a lighter body, much thinner side walls, and more space compared to the regular C20, by using a sandwich-like composite construction of the body. It also has air-conditioning for passenger area, whereas standard C20 has air-conditioning only for the driver's cab. However only the last 70 C20 units produced (2200-2270) are equipped with air conditioning in the drivers cab. All other C20 units completely lack air conditioning. Therefore units lacking air conditioning are usually placed in the middle of trains and moved to the blue line during the summer, where the air conditioning is the least needed, as it is almost exclusively underground. The C20F weighs {{convert|65|t|ton}}, other exterior measurements are the same as for the C20. The C20F has the same number of seats as the C20, but has space for 323 standing passengers.<ref name="ss-c20f" />

After about 20 years in service (22 years for the oldest cars and 16 years for the youngest cars), the C20 had reached about half its lifetime, and a refurbishment was necessary. The first refurbished train set (three cars) was officially put into service on November 20, 2020. The refurbishment of all cars was completed in 2024. These refurbished cars, also known as C25, feature an upgraded interior similar to the C30 among other improvements. All original C20 units had been refurbished by February 2024.<ref>{{Cite web |last=Johnsson |first=Peter |date=2024-02-28 |title=Nu är alla C20 uppgraderade |url=https://jarnvagar.nu/nu-ar-alla-c20-uppgraderade/ |access-date=2024-12-01 |website=Järnvägar.nu |language=en-US}}</ref><gallery>
File:Liljeholmen tunnelbana, SL C20, 20240210 - 09.jpg|C20 at Liljeholmen 
File:SL C20U (7).jpg|C20 refurbished interior
File:C20 Stockholm Interior.jpg|C20 original interior
File:C20 vagn 2201.jpg|C20 at  Skarpnäck
</gallery>

====C30====
{{Main|SL C30}}
The C30 is a new articulated train type manufactured by [[Bombardier Transportation]] which is delivered since 2018 for use on the red line. The first C30 train entered service on the red line on 11 August 2020.<ref>[https://www.dn.se/sthlm/nu-borjar-de-nya-tagen-rulla-i-stockholms-tunnelbana/ "Nu börjar de nya tågen rulla i Stockholms tunnelbana", dn.se], Swedish, accessed on 19 August 2020</ref> They are formed in semi-permanent four car units with open gangways between cars, and with two bogies under each car. Two such units form a train. Compared to previous stock, the cars have fewer seats arranged in mixed longitudinal/transverse layout for increased capacity, similar to the C1 and refurbished C20 trains.<ref>{{cite journal |date=14 April 2009 |title=Stockholm seeks metro car builders |url=http://www.railwaygazette.com/news/single-view/view/stockholm-seeks-metro-car-builders.html |journal=[[Railway Gazette International]]}}</ref> The C30 is the first full Stockholm metro train type to feature [[air-conditioning]] in both the passenger compartments and driver's cabs and are expected to cost 5 billion [[Swedish krona|kronor]].<ref>[https://www.svt.se/nyheter/lokalt/stockholm/premiartur-med-nya-tunnelbanetaget-pa-roda-linjen "Här är nya tunnelbanetåget - premiärtur på röda linjen", svt.se], Swedish, accessed on 19 November 2019</ref><gallery>
File:C30 train (cropped).png|C30 Train in Vårby Gård
File:C30 Carriage.jpg|C30 interior
File:SL C30, T-centralen, 20230312, 10.jpg|'''C30 at T-centralen'''
File:C30 interior 200909 1.jpg|'''C30 interior'''
</gallery>

===Former rolling stock===
{{Main|SL Cx}}

====Cx (C1 - C15)====
The name Cx collectively refers to all the older types C1–C15. The last ride with a Cx car in the Stockholm Metro took place on 10 February 2024 on a [[SL C14|C14]] car. C14 were {{convert|17.32|m|ftin|abbr=on}} to {{convert|17.62|m|ftin|abbr=on}} in length, {{convert|2.8|m|ftin|abbr=on}} in width, {{convert|3.70|m|ftin|abbr=on}} to {{convert|3.78|m|ftin|abbr=on}} in height, and weigh 29 metric tons. The cars took 48 seated passengers, and 108 to 110 [[standing passenger]]s. The C14 and C15 trains were built in the mid-1980s.<ref name="ss-c14" /> As of 12 January 2024, the C6, C14 and C15 have been taken out of service permanently.
{|class="wikitable sortable"
! Class !! Introduced !! Withdrawn
!class=unsortable| Notes
|-
| [[SL C1|C1]]|| 1950 || 1984 || Some units were rebuilt to C2 and C3 units
|-
| [[SL C2|C2]]|| 1950 || 1999 || The type with the most train sets produced (348 in total)
|-
| [[SL C3|C3]]|| 1957 || 1999 || Were not equipped with complete drivers cabs, could only run in the middle of trains
|-
| [[SL C4|C4]]|| 1960 || 2003 || Were the first units to feature a driver's cab in only one end of the unit
|-
| [[SL C5|C5]]|| 1963 || 1996 || Eight prototype cars with an unpainted aluminium exterior, nicknamed ''Silverpilen'' (the Silver Arrow). The doors were outlying sliding doors.
|-
| [[SL C6|C6]]|| 1970 || 2023 || First model with modernised driver's cabin
|-
| [[SL C7|C7]]|| 1972 || 2004 || Prototype cars
|-
| [[SL C8|C8]]/[[SL C8H|C8H]]|| 1974 || 2004 || Four units were rebuilt for service on the [[Saltsjöbanan]] in the year 2000
|-
| [[SL C9|C9]]|| 1976 || 2009 ||
|-
| [[SL C12|C12]]|| 1977 || 2001 || Were built using old technology from the C1, C2 and C3 types
|-
| [[SL C13|C13]]/[[SL C13H|C13H]]|| 1982 || 2003 || Some units were rebuilt into C13H stock in 1995–1997.        
|-
|[[SL C14|C14]]
|1985
|2024
|The C14 was the longest-surviving Cx car in the Stockholm Metro. Its final ride took place on 10 February 2024.
|-
|[[SL C14z|C14z]] ||1987 ||1999 || |Prototype cars which were used as testbeds for technology that would later be used on the C20 trains. Only 4 cars (a half length train) were ever built. 
|-
|[[SL C15|C15]]
|1985
|2023
|C15 was the last model of the Cx cars, and they were constructed at the same time as C14.
|}
<gallery>
File:Tunnelvagn c2 2417.jpg|Preserved C2 carriage, February 2005
File:Stockholm Metro car.JPG|Interior of a C6H type car
File:C2.jpg|Interior of a preserved and restored C2 car that is part of a vintage train
File:Stockholm Tunnelbana 1.jpg|A train of older stock, type C4. All C4s were taken out of service in 2003.
</gallery>

==Infrastructure and Operation==
[[Image:StockholmBlueMetroTrain.jpg|thumb|A train on the way between [[Liljeholmen metro station]] and [[Nyboda depot]]]]

===Safety and Technology===
The Stockholm metro runs electrically using a [[third rail]] with a nominal operating voltage of 650&nbsp;[[Volt|V]] [[Direct current|DC]] on line 13, 14, 17, 18 and 19; and 750&nbsp;V DC on lines 10 and 11. Traffic on the metro operates on left-hand side, similarly to [[Rail transport in Sweden|mainline trains in Sweden]]. When the metro system opened in 1950, cars and trams still [[Dagen H|drove on the left]] in Sweden.

The maximum speed is {{convert|80|km/h|mph|abbr=on}} on the Red and Blue Lines and {{convert|70|km/h|mph|abbr=on}} on the Green Line ({{convert|50|km/h|mph|abbr=on}} at the platforms). Maximum acceleration and deceleration is 0.8&nbsp;m/s<sup>2</sup>. The reason for the lower speed limit on the Green Line is due to tighter curves than on the other lines, because the Green Line was built by [[cut and cover]] under streets in the inner city, while the other lines are bored at greater depth. Two safety systems exist on the metro: the older system manufactured by [[Union Switch & Signal]] in use on the Red and Blue Lines and a modern [[automatic train operation]] (ATO) system in use on the Green Line manufactured by [[Siemens Mobility]].

To allow close-running trains with a high level of safety, the metro uses a continuous signal safety system that sends information continually to the train's safety system. The signal is picked up from the [[rail track]]s through two [[antenna (radio)|antennas]] placed in front of the first wheel [[axle]] and compared with data about the train's speed. Automatic braking is triggered if the train exceeds the maximum permitted speed at any time. The driver is given information about the speed limit through a display in the driver's cabin; in C20 stock, and in Cx stock outfitted for operation with the new signal system installed on the Green Line, this is a speedometer with a red maximum speed indicator (needle), while the traditional display in the Cx stock is a set of three lights indicating one of three permitted speeds (high, medium, low). The system allows two trains to come close to each other but prevents collisions occurring at speeds greater than {{convert|15|km/h|mph|abbr=on}}. More modern systems also ensure that stop signals are not passed.

Another possibility is automatic train operation, which helps the driver by driving the train automatically. However, the driver still operates the door controls and allows the train to start. As of {{Currentyear}}, ATO is only available on the Green line, where a new signal system was installed in the late-1990s. This signal system, together with the C20 rolling stock, permits the use of ATO. The signalling system on the Red Line was supposed to be replaced with a [[Communications-based train control]] (CBTC) system manufactured by [[Ansaldo STS]] under a contract awarded by SL in 2010, however SL cancelled said contract in 2017, reportedly after repeated delays in project implementation.<ref>{{Cite web|url=https://www.railwaygazette.com/infrastructure/stockholm-metro-resignalling-contract-terminated/45449.article|title=Stockholm metro resignalling contract terminated}}</ref><ref>{{Cite web|url=https://www.railjournal.com/signalling/stockholm-red-line-resignalling-contract-cancelled/|title=Stockholm Red Line resignalling contract cancelled|date=8 November 2017}}</ref>

===Graffiti===
[[File:Stockholm subway karlaplan 20050731 002.jpg|thumb|Graffiti at the [[Karlaplan metro station]], on the red line, 2005]]

[[Storstockholms Lokaltrafik|SL]] and the Stockholm Metro zero-tolerance policies for graffiti, with graffiti-covered trains immediately removed from service and station graffiti cleaned within 24 hours.<ref>{{Cite web |title=SL:s spårtrafik - klotterproblem minskat med 57 procent |url=https://www.jarnvagsnyheter.se/20230214/14355/sls-spartrafik-klotterproblem-minskat-med-57-procent |access-date=2024-11-30 |website=www.jarnvagsnyheter.se |language=sv}}</ref> From the mid-1980s, [[graffiti]] has been a recurring issue in the Stockholm metro. Previously, graffiti on trains and stations often remained visible for weeks or months.

In 2018, graffiti damage was reported over an area of 166,475 square meters, equivalent to 30 football fields. Costs for addressing graffiti and vandalism reached 192 million [[Swedish krona|SEK]] in 2020 (approx. €18 million), driven in part by large-scale repairs like replacing damaged windows.

In December 2019, several prolific graffiti offenders, referred to as "storklottrare," were arrested. In 2022, they were convicted for extensive vandalism committed in 2018 and 2019. Two received prison sentences of 1 and 1.5 years, while a third was given a conditional sentence and fines. They were collectively ordered to pay nearly 2 million SEK (approx. €190,000) in damages.<ref>{{Cite web |title=Klottrade i tunnelbana - döms till fängelse och skadestånd |url=https://www.nj.se/kortnyheter/klottrade-i-tunnelbana-doms-till-fangelse-och-skadestand |access-date=2024-11-30 |website=www.nj.se |language=sv}}</ref> These legal actions were credited with deterring further graffiti activity.<ref name=":2">{{Cite web |date=2023-09-24 |title=Klottersanering har minskat mest i Stockholms t-bana - DN.se |url=https://www.dn.se/sverige/kraftig-minskning-av-kostnaden-for-klotter-hos-sl/ |archive-url=https://archive.today/20230924081433/https://www.dn.se/sverige/kraftig-minskning-av-kostnaden-for-klotter-hos-sl/ |url-status=dead |archive-date=2023-09-24 |access-date=2024-11-30 |website=archive.is}}</ref>

[[Storstockholms Lokaltrafik|SL]] also introduced new measures, including fencing, radar-equipped surveillance cameras, and rapid cleaning protocols.<ref name=":2" /> By 2022, reported graffiti damage had decreased by 57% compared to 2018, totalling 72,904 square meters (13.5 football fields). Costs dropped to 119 million SEK in 2022 (approx. €11 million), with the metro seeing the largest improvement.<ref>{{Cite web |title=Hemliga metoder gör att klottret fortsätter minska |url=https://www.mitti.se/nyheter/hemliga-metoder-gor-att-klottret-fortsatter-minska-6.3.90821.0e4141dcf6 |website=Mitt i Stockholm}}</ref>

==Art and popular culture==

===Art===
The Stockholm metro is often described as the "world’s longest art gallery,"<ref>{{Cite web |last=Lele |first=Teja |title=Exploring Stockholm's Metro, the longest art gallery in the world |url=https://www.thenationalnews.com/travel/2023/12/07/exploring-stockholms-metro-the-longest-art-gallery-in-the-world/ |access-date=2024-12-02 |website=The National |language=en}}</ref><ref>{{Cite web |date=2021-07-14 |title=Stockholm's Subway Is the World's Longest Art Gallery {{!}} Architectural… |url=https://www.architecturaldigest.com/gallery/stockholm-subway |archive-url=https://archive.today/20210714211345/https://www.architecturaldigest.com/gallery/stockholm-subway |url-status=dead |archive-date=2021-07-14 |access-date=2024-12-02 |website=archive.is}}</ref> and is famous for the [[public art]] integrated into 94 of its 100 stations,<ref>{{Cite web |title=Konsten i kollektivtrafiken |url=https://www.regionstockholm.se/kollektivtrafik/konsten/ |access-date=2024-12-02 |website=Region Stockholm |language=sv}}</ref> including sculptures, rock formations, mosaics, paintings, light installations, engravings, and reliefs created by over 150 artists.<ref name=":3" /> Beyond aesthetics, [[Region Stockholm]] believes that art at the stations contributes to a calm and safe environment and reduces [[vandalism]] and [[graffiti]], and that travellers find it easier to orient themselves when each station has its own identity.<ref>{{Cite web |date=2024-12-02 |title=Konsten i kollektivtrafiken - Region Stockholm |url=https://www.regionstockholm.se/kollektivtrafik/konsten/ |archive-url=https://archive.today/20241202162204/https://www.regionstockholm.se/kollektivtrafik/konsten/ |url-status=dead |archive-date=2024-12-02 |access-date=2024-12-02 |website=archive.is}}</ref>

[[File:Stadion metro station 2025.jpg|thumb|270px|[[Stadion metro station|Stadion]] station (1973), an example of [[bedrock]] art in Stockholm metro]]
Advocacy for art on the metro was driven by artists [[Vera Nilsson]] and [[Siri Derkert]], who faced resistance from officials and politicians who questioned its relevance and cost.<ref name=":4">{{Cite web |date=2024-12-02 |title=Sabrina Carpenter spelar på Avicii arena 2025 {{!}} Mitt i |url=https://www.mitti.se/nyheter/vera-nilsson-och-siri-derkert-drev-igenom-tunnelbanans-konst-6.27.104674.b2d0421d16 |archive-url=https://archive.today/20241202155012/https://www.mitti.se/nyheter/vera-nilsson-och-siri-derkert-drev-igenom-tunnelbanans-konst-6.27.104674.b2d0421d16 |url-status=dead |archive-date=2024-12-02 |access-date=2024-12-02 |website=archive.is}}</ref> However by 1957, [[Stockholm Municipality|Stockholm City Council]] had approved the integration of art into the metro, and established a program to commission works for new stations, starting with [[T-Centralen metro station|T-Centralen]].<ref>{{Cite web |date=2024-12-02 |title=Konsten i tunnelbanan firar 60 år {{!}} JARNVAGSnyheter.se |url=https://www.jarnvagsnyheter.se/20190803/6899/konsten-i-tunnelbanan-firar-60-ar |archive-url=https://archive.today/20241202160304/https://www.jarnvagsnyheter.se/20190803/6899/konsten-i-tunnelbanan-firar-60-ar |url-status=dead |archive-date=2024-12-02 |access-date=2024-12-02 |website=archive.is}}</ref>

The first major art installations in the Stockholm metro appeared in the 1960s, with Siri Derkert's 1965 work at [[Östermalmstorg metro station|Östermalmstorg Station]], featuring sandblasted engravings focused on [[feminism]], [[world peace]], and [[environmentalism]].<ref name=":4" /> These early installations often reflected modernist aesthetics and social commentary. In the 1970s, as the metro expanded, including with the opening of the [[Blue line (Stockholm Metro)|Blue Line]], large-scale, immersive artworks became common. Artists collaborated closely with architects, as seen at [[Solna centrum metro station|Solna Centrum]] (1975), where [[Anders Åberg (artist)|Anders Åberg]] and Karl-Olov Björk created a red and green cave-like design addressing [[Urbanization|urbanisation]] and environmental issues.<ref>{{Cite news |last=Cox |first=David |date=2015-10-20 |title=A tour of the Stockholm metro – the world's longest art gallery |url=https://www.theguardian.com/cities/2015/oct/20/stockholm-metro-tour-world-longest-art-gallery |access-date=2024-12-02 |work=The Guardian |language=en-GB |issn=0261-3077}}</ref> In the 1980s and 1990s, the art program diversified, with stations like [[Kungsträdgården metro station|Kungsträdgården]] (designed by Ulrik Samuelson) incorporating historical motifs and archaeological elements.<ref>{{Cite web |title=Historien om konsten på Kungsträdgårdens tunnelbanestation |url=https://stockholmartwalk.se/stockholms-tunnelbana-konst-guide/konsten-pa-kungstradgardens-tunnelbanestation/ |access-date=2024-12-02 |website=Stockholm Art Walk |language=sv-SE}}</ref> At [[Rissne metro station|Rissne]], a [[fresco]] about the [[human history|history of Earth's civilisations]] runs along both sides of the platform.<ref>{{Cite web |title=mazken i rissne |url=https://www.kafe-k.se/rissne.htm |access-date=2024-12-02 |website=www.kafe-k.se}}</ref>

Some installations have sparked debate. In 2017, [[Liv Strömquist]]’s temporary exhibition ''The Night Garden'' at [[Slussen metro station|Slussen station]] featured sketches depicting subjects such as [[menstruation]]. While some praised the work for addressing [[Taboo|taboos]], others criticised it as inappropriate for a public setting. [[Storstockholms Lokaltrafik|SL]] defended the work as part of its commitment to diverse artistic expressions.<ref>{{Cite news |last=Hunt |first=Elle |date=2017-11-02 |title='Enjoy menstruation, even on the subway': Stockholm art sparks row |url=https://www.theguardian.com/cities/2017/nov/02/enjoy-menstruation-subway-stockholm-art-row-liv-stromquist |access-date=2024-12-02 |work=The Guardian |language=en-GB |issn=0261-3077}}</ref>

Art projects continue to be an integral part all new station designs. Since 2015, public competitions have been held to select artists for new stations on the [[Blue line (Stockholm Metro)|Blue]] and [[Green line (Stockholm Metro)|Green lines]]. These new works are developed in close collaboration with architects and engineers, and often respond to the specific context of each station, reflecting local history, culture, or natural surroundings. For example at [[Barkarbystaden metro station|Barkarbystaden station]], Helena Byström’s work incorporates dynamic video art that references the area’s [[military aviation]] history.<ref>{{Cite web |title=Konsten i nya tunnelbanan |url=https://nyatunnelbanan.se/stockholms-nya-tunnelbana/konsten-i-nya-tunnelbanan/ |access-date=2024-12-02 |website=Nya tunnelbanan |language=sv-SE}}</ref><gallery>
File:Stockholm subway ostermalmstorg 20050731 001.jpg|[[Östermalmstorg metro station|Östermalmstorg]]
File:Hallonbergen 20180624 13.jpg|[[Hallonbergen metro station|Hallonbergen]]
File:Solna centrum station.jpg|[[Solna centrum metro station|Solna centrum]]
File:Kungsträdgården Metro station May 2014 02.jpg|[[Kungsträdgården metro station|Kungsträdgården]] 
File:Tensta metro 20170902 08.jpg|[[Tensta metro station|Tensta]] 
File:Tekniska högskolan metro station January 2017.jpg|[[Tekniska högskolan metro station|Tekniska högskolan]] 
File:Stockholm metro T-Centralen (52389076688).jpg|[[T-Centralen metro station|T-Centralen]]
File:Thorildsplan 20170813 bild 06.jpg|[[Thorildsplan metro station|Thorildsplan]]
File:Bandhagenkonst.jpg|[[Bandhagen metro station|Bandhagen]]
</gallery>

===Urban legends===
The modern metro network, which was inaugurated in 1950, has racked up several mythical [[urban legend]]s over the years, notably involving [[ghost]] phenomena, especially of the [[horror genre]].<ref name="Drimse">{{cite web |title=Spöktåget Silverpilen | website=[[YouTube]] | date=29 February 2020 |url=https://www.youtube.com/watch?v=32hJAhtI5E0 |access-date=2024-05-03}}</ref><ref name="En spökresa av SL">{{cite web |title=Spårlöst - En spökresa av SL -Kymlinge Tunnelbanestation | website=[[Spotify]] |url=https://open.spotify.com/show/4fsZuXggJRXm7xbgXqK7Yq?si=d8961212667b4eb0 |access-date=2024-05-03}}</ref><ref name="Stockholmshjärta">{{cite web |title=Äventyr i Tunnelbanan del 8: Kymlinge (spökstationen) | website=[[YouTube]] | date=9 April 2020 |url=https://www.youtube.com/watch?v=8hztboj-p4o |access-date=2024-05-03}}</ref> The most famous of these is the legend of [[the Silver Train of Stockholm|the Silver Train]] ({{langx|sv|Silvertåget}}), a [[silver (color)|silver colored]] [[ghost train]] that traffics the Stockholm Metro and carries dead people to the afterlife.<ref name="Stockholmshjärta"/> The legend is said to originate from the [[SL C5|C5-cars]], an aluminium prototype metro train which never received paint and usually ran at night. The C5 carries the nickname of "the Silver Arrow" (''Silverpilen''), which has since carried over to the ghost train.<ref name="Stockholmshjärta"/>

Another notable urban legend, especially in connection with the Silver Train, surrounds the unfinished [[Kymlinge ghost station|Kymlinge metro station]], which was built but never taken into service. The legend says no living get off at Kymlinge, only the dead. This is usually combined with the legend of the Silver Train, which is said to only stop at Kymlinge.{{Citation needed|date=December 2024}}

==Future==

=== Current expansions ===
In 2013, it was announced that agreement had been reached on the future of several extensions. Preliminary planning started in 2016<ref name="sll.se 2013">{{cite web |url=http://sll.se/SLL/Templates/NewsPage.aspx?id=66409 |archive-url=https://archive.today/20131126144452/http://sll.se/SLL/Templates/NewsPage.aspx?id=66409 |url-status=dead |archive-date=2013-11-26 |work=Stockholms läns landsting |title=Historisk överenskommelse ger stockholmarna ny tunnelbana |access-date=2013-11-26}}</ref> and revenue service on the first sections is projected to begin in the mid 2020s.<ref>[http://nyatunnelbanan.sll.se/en/new-metro "The New Metro", sll.se], accessed 7 April 2019</ref> In 2017, another agreement was reached regarding several public transportation projects in Stockholm, including a fourth metro line.<ref>{{Cite news|url=https://www.dn.se/sthlm/sparsatsning-for-30-miljarder-ger-100000-nya-bostader/ |title=Spårsatsning för 30 miljarder ger 100.000 nya bostäder |last1=Sundström |first1=Anders |last2=Gustafsson |first2=Anna |date=30 March 2017 |access-date=2017-04-01 |language=sv |newspaper=[[Dagens Nyheter]] }}</ref> The extensions, which are the first in 40 years, will add 18 new metro stations making the total number of stations 113.<ref>{{cite web |last=Martos Nilsson |first=Mårten |date=19 October 2022 |title=Första nya tunnelbanan i Stockholm på 40 år: 18 nya stationer |trans-title=The First New Metro in Stockholm in 40 Years: 18 New Stations |url=https://arbetet.se/2022/10/19/forsta-nya-tunnelbanan-i-stockholm-pa-40-ar-18-nya-stationer/ |access-date=17 January 2023 |website=Arbetet.se |language=Swedish}}</ref><ref group=Note name=Note02/>It is the policy of the Stockholm Metro that all new extensions and lines are built underground.<ref name=":1" /> Altogether, this amounts to the following new constructions:<ref>[http://nyatunnelbanan.sll.se/ "Nya tunnelbanan", ssl.se], Swedish, accessed 7 April 2019</ref>

==== Blue Line to Nacka and the southern suburbs ====
[[File:Barkarby, tunnelbanan, 20230423, 20.jpg|thumb|Blue Line under construction at Barkarby in 2023]]
From [[Kungsträdgården metro station|Kungsträdgården]], there will be a new station at Sofia on [[Södermalm]], after which the line splits with one branch continuing to [[Nacka]] (with three new intermediate stations), and the other to new underground platforms at [[Gullmarsplan metro station|Gullmarsplan]] after which it will take over the current Green line branch to [[Hagsätra metro station|Hagsätra]]. The surface-level stations [[Globen metro station|Globen]] and [[Enskede gård metro station|Enskede gård]] on the Hagsätra branch will be closed and replaced by a new underground station at [[Slakthusområdet metro station| Slakthusområdet]]. This allows higher frequencies on the Green Line branches to [[Farsta strand metro station|Farsta strand]] and [[Skarpnäck metro station|Skarpnäck]] which are currently limited by the fact that three branches pass the bottleneck at T-Centralen.

==== Blue Line to Barkarby Station ====
[[File:Barkarby station september 2024 03.jpg|left|thumb|Barkarby metro station entrance under construction in 2024]]
An extension of the Blue Line north-west from [[Akalla metro station|Akalla]] to [[Barkarby station|Barkarby railway station]] via [[Barkarbystaden metro station|Barkarbystaden]], a new development on the former site of [[Barkarby Airport]].<ref>[http://nyatunnelbanan.sll.se/sv/barkarby "Blå linje till Barkarby", ssl.se], Swedish, accessed 7 April 2019</ref>

==== Green Line to Arenastaden ====
From [[Odenplan metro station|Odenplan]] via the new development at {{ill|Hagastaden|sv}}, [[Södra Hagalund]] and ending in {{ill|Arenastaden|sv}} (roughly around the vicinity of the [[Strawberry Arena]] and [[Westfield Mall of Scandinavia]]), with construction of this segment expected to finish in 2028. Was originally referred to as the Yellow Line after a competition was held by Stockholm City Council in 2014, but was redesignated as a new branch of the Green Line in May 2023 and the Yellow Line designation was subsequently only used to refer to the below-mentioned Fridhemsplan–Älvsjö metro line<ref>{{cite news|url=https://nyatunnelbanan.se/nyhet/gula-linjen-flyttar-soderut/|title=Green line to Arenastaden|date=2023-05-22|newspaper=}}</ref>

==== New Depot ====
To support the expansion of the Stockholm Metro, the Högdalen depot is being extended with new underground staging areas to service trains on both the Blue and Green lines. A new underground connection will link the depot to the Green line’s Farsta branch.<ref>{{Cite web |title=Tunnelbanans depå i Högdalen byggs ut |url=https://www.jarnvagsnyheter.se/20240212/14915/tunnelbanans-depa-i-hogdalen-byggs-ut |access-date=2024-09-21 |website=www.jarnvagsnyheter.se |language=sv}}</ref>

=== Confirmed expansions ===

==== Yellow Line ====
{{Main|Yellow line (Stockholm Metro)}}

A new, automated line between [[Fridhemsplan metro station|Fridhemsplan]] and [[Älvsjö railway station|Älvsjö]] via [[Liljeholmen metro station|Liljeholmen]], [[Årstaberg railway station|Årstaberg]], [[Årstafältet]] and [[Östbergahöjden]] (has been renamed since a station at [[Roslagsbanan]] is already called Östberga), since May 2023 referred to as the Yellow Line.<ref>{{Cite web |title=Historisk satsning på utbyggd kollektivtrafik i länet - Region Stockholm |url=https://www.sll.se/nyheter-stockholms-lans-landsting/2017/03/Historisk-satsning-pa-utbyggd-kollektivtrafik-i-lanet/ |archive-url=http://web.archive.org/web/20190407163957/https://www.sll.se/nyheter-stockholms-lans-landsting/2017/03/Historisk-satsning-pa-utbyggd-kollektivtrafik-i-lanet/ |archive-date=2019-04-07 |access-date=2024-12-19 |website=www.sll.se |language=sv}}</ref>

=== Expansions under investigation ===

==== Line to Bromma Airport area ====
An investigation is underway into the potential extension of either the [[Blue line (Stockholm Metro)|Blue Line]] or [[Green line (Stockholm metro)|Green Line]] to a new district replacing the current [[Stockholm Bromma Airport]],<ref>{{Cite web |date=2024-12-02 |title=Möjliga spårutbyggnader för framtidens kollektivtrafik |url=https://www.regionstockholm.se/nyheter/2024/12/mojliga-sparutbyggnader-for-framtidens-kollektivtrafik/ |access-date=2025-03-09 |website=Region Stockholm |language=sv}}</ref> which is scheduled to close before 2038.<ref>{{Cite web |last=MattssonText |first=Per |date=2024-02-14 |title=Stockholms stad säger upp avtalet om Bromma flygplats |url=https://www.di.se/nyheter/stockholms-stad-sager-upp-avtalet-om-bromma-flygplats/ |access-date=2025-03-09 |website=Dagens industri |language=sv}}</ref>  A consultation is scheduled for autumn 2025 to gather public input, and the investigation will result in a report with proposed routes, set to be completed by late 2026.<ref>{{Cite web |title=Start för planerna – tunnelbana till Bromma parkstad |url=https://www.fastighetssverige.se/artikel/start-for-planerna-tunnelbana-till-bromma-parkstad-52498 |access-date=2025-03-09 |website=Fastighetssverige |language=en}}</ref><ref>{{Cite web |title=Utredning om tunnelbana till Bromma flygplatsområde inledd {{!}} JARNVAGSnyheter.se |url=https://www.jarnvagsnyheter.se/20250307/17222/utredning-om-tunnelbana-till-bromma-flygplatsomrade-inledd |access-date=2025-03-09 |website=www.jarnvagsnyheter.se |language=sv}}</ref> While no political decision has been made, if approved, construction could start around 2035, with the line potentially operational by 2045.<ref>{{Cite web |date=2025-03-02 |title=Ny tunnelbana till Bromma – samråd i höst |url=https://www.mitti.se/nyheter/ny-tunnelbana-till-bromma--samrad-i-host-6.3.279209.b5004eab34#selection-123391.0-123391.41 |archive-url=https://archive.today/20250309164531/https://www.mitti.se/nyheter/ny-tunnelbana-till-bromma--samrad-i-host-6.3.279209.b5004eab34#selection-123391.0-123391.41 |url-status=dead |archive-date=2025-03-09 |website=mitti.se}}</ref>

==See also==
*[[The Silver Train of Stockholm]]
{{Portal|Trains|Sweden}}
*[[List of metro systems]]
*[[Øresundsmetro|Malmö Metro (proposed)]]

==Notes==
{{reflist|group=Note|refs=
<ref name=Note01>650 V for the red and green lines.</ref>
<ref name=Note02>There are currently 100 stations. Globen and Enskede Gård will be closed and replaced by a new station, Slakthusområdet. One new underground station for the blue line will be built alongside Gullmarsplan station above. Two new stations will be added at Fridhemsplan and Liljeholmen on the yellow line. Additionally, there will be 14 new standalone stations, resulting in a total of 18 new stations and 113 stations overall.</ref>
}}

==References==
{{Reflist}}

==External links==
{{Commons category|Stockholm Metro}}
* {{official|http://sl.se}} {{in lang|sv}}
* [http://www.urbanrail.net/eu/se/stockholm/stockhlm.htm Stockholm Metro at ''UrbanRail.net'']
* [http://www.ekeving.se/r/rres_upddat.php Tunnelbana I Stockholm]
* [http://metroeasy.metromates.com/stockholm-metro.html Stockholm Metro ''MetroMates.com'']
* [https://www.metrolinemap.com/metro/stockholm/ Stockholm Metro Map]
* [https://public-transport.net/metro/Stockholm/ Stockholm Metro at ''public-transport.net'']

{{Stockholm metro}}
{{Stockholm public transport}}
{{Urban public transport in Sweden}}
{{Underground rapid transit in the European Union and the United Kingdom}}
{{MTR Corporation}}

[[Category:Stockholm metro| ]]
[[Category:Rapid transit in Sweden]]
[[Category:Rail transport in Stockholm]]
[[Category:Underground rapid transit in Sweden]]
[[Category:MTR Corporation]]
[[Category:650 V DC railway electrification]]
[[Category:750 V DC railway electrification]]
[[Category:1950 establishments in Sweden]]
[[Category:1950s establishments in Stockholm]]