Yellow line (Stockholm metro): Difference between revisions

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The '''Yellow Line''' ({{lang-sv|Gula linjen}}) is a planned line on the [[Stockholm metro]] that will connect [[Fridhemsplan]] in the west of central Stockholm to [[Älvsjö railway station|Älvsjö]] in the southern part of the city. The line is planned to open for service in 2034, and should serve approximately 75,000 passengers per day by 2050.<ref name=":0">{{Cite web |title=Stockholm Metro Expansion, Sweden |url=https://www.railway-technology.com/projects/stockholm-metro-expansion/ |access-date=2024-09-24 |website=Railway Technology |language=en-US}}</ref>

The line will feature [[Interchange station|interchanges]] with all three of the Metro's existing lines, as well as to the [[Stockholm commuter rail]] and [[Tvärbanan]] light rail, however will be the Metro's first line without a station at [[T-Centralen]].<ref>{{Cite web |date=2023-09-22 |title=Så stora blir tidsvinsterna med nya tunnelbanan |url=https://www.dn.se/sverige/sa-stora-blir-tidsvinsterna-med-nya-tunnelbanan/ |access-date=2024-09-25 |website=DN.se |language=sv}}</ref>

Preparatory works for the line started in 2024,<ref name=":1">{{Cite web |title=Förberedande arbeten |url=https://nyatunnelbanan.se/forberedande-arbeten/ |access-date=2024-09-24 |website=Nya tunnelbanan |language=sv-SE}}</ref> with construction works scheduled to begin in 2025. The Yellow Line is estimated to cost nearly 14 billion Swedish kronor, with the majority of the funding coming from the [[Government of Sweden|state]]. As a condition of this funding, the [[Stockholm Municipality|City of Stockholm]] is required to build 48,500 new homes.<ref>{{Cite web |title=Sweco Group - New metro line Fridhemsplan – Älvsjö in Stockholm |url=https://www.swecogroup.com/portfolio/new-metro-line-fridhemsplan-alvsjo-in-stockholm/ |access-date=2024-09-24 |website=Sweco Group |language=en-US}}</ref>

In spring 2017, an agreement was reached to build a new line connecting Fridhemsplan and Älvsjö, including a stop at [[Liljeholmen metro station|Liljeholmen]].<ref>{{Cite news |last=Majlard |first=Jan |date=2019-10-31 |title=Största satsningen sedan 70-talet – på 3 minuter |url=https://www.svd.se/a/P9Xpdb/storsta-satsningen-sedan-70-talet-pa-3-minuter |access-date=2024-09-24 |work=Svenska Dagbladet |language=sv |issn=1101-2412}}</ref> Planning for the line began in 2020, including a study to assess potential routes and station locations. Public consultations were held to gather feedback from residents and local authorities.<ref name=":2">{{Cite web |date=2021 |title=Tidplan |url=https://nyatunnelbanan.se/alvsjo/tidplan/ |access-date=2024-09-24 |website=Nya tunnelbanan |language=sv-SE}}</ref> In 2021, the [[Region Stockholm|regional council]] approved a route with six station locations. In 2022, detailed planning and [[Environmental impact assessment|environmental assessments]] were conducted to outline construction methods and locations. Studies examined the impact on [[Land use|local land use]] and [[Naturalnatural resource|natural resources]]s.<ref name=":2" />

In May 2023, it was announced that the line would be called the "Yellow Line". Previously, yellow was used for the extension the [[Green line (Stockholm metro)|Green Line]] from [[Odenplan station|Odenplan]] to [[Strawberry Arena|Arenastaden]], due to open in 2028. This was rebranded instead as a new branch of of the Green Line.<ref>{{Cite news |last=Nyheter |first=S. V. T. |date=2023-05-17 |title=Gult blir grönt när tunnelbanan byggs ut |url=https://www.svt.se/nyheter/lokalt/stockholm/gult-och-gront-nar-tunnelbanan-byggs-ut |access-date=2024-09-24 |work=SVT Nyheter |language=sv}}</ref>

The Yellow Line will be approximately 8km8&nbsp;km long, running north to south, to the west of the city centre. The line will include six stations :<ref name=":0" />

* [[Årstaberg railway station|Årstaberg]] (Connecting to the [[Stockholm commuter rail]] and [[Tvärbanan]])

* [[Älvsjö railway station|Älvsjö]] (Connecting to the [[Stockholm commuter rail]])

Platforms along the line will be built to accommodate 75-metre-long trains, much shorter than the 145-metre platforms on other lines in the Stockholm Metro. The intention is that capacity is instead created by more frequent departures and shorter total travel times.

The six new stations between Fridhemsplan and Älvsjö, will be equipped with [[Elevator|lifts]] designed to transport passengers between the surface and platform levels in 20 to 30 seconds, as the stations will not have [[Escalator|escalatorsescalator]]s. These stations will also feature narrower platform widths, and will be prepared for [[platform screen doors]].<ref>{{Cite web |date=2024-04-25 |title=Tunnelbana till Älvsjö - Sammanställning och bemötande av inkomna synpunkter i samrådsprocessen |url=https://nyatunnelbanan.se/wp-content/uploads/2024/05/7100-C72-22-00001-1.pdf |website=nyatunnelbanan.se}}</ref>

The planned depot for the Yellow Line will be located in the [[Älvsjö]] industrial area, south of [[Älvsjö railway station|Älvsjö station]]. It is designed to accommodate approximately 10 trains, and will include maintenance and washing facilities.<ref>{{Cite web |title=Älvsjö föreslås som plats för ny tunnelbanedepå |url=https://www.jarnvagsnyheter.se/20240216/15875/alvsjo-foreslas-som-plats-ny-tunnelbanedepa |access-date=2024-09-24 |website=www.jarnvagsnyheter.se |language=sv}}</ref> The depot will include both over-ground and under-ground sections. A connection between the depot and nearby [[Western Main Line]], to facilitate the movement of trains and maintenance vehicles, is being investigated.<ref>{{Cite web |title=Ny depå i Älvsjö industriområde |url=https://nyatunnelbanan.se/alvsjo/den-nya-depan/ |access-date=2024-09-24 |website=Nya tunnelbanan |language=sv-SE}}</ref>

== Rolling Stockstock ==

The line will feature unattended [[Automatic train operation|autonomous trains]], making it the first line in Sweden to use driverless metro technology.<ref>{{Cite web |date=2023-09-26 |title=Gula t-banelinjen får förarlösa tåg |url=https://www.dn.se/sverige/gula-t-banelinjen-far-forarlosa-tag/ |access-date=2024-09-24 |website=DN.se |language=sv}}</ref> The decision was made by [[Region Stockholm]] in September 2023. The trains will not have driver cabs, allowing for additional seating and views of the tunnel, similar to the system used in the [[Copenhagen Metro]].<ref>{{Cite web |last=MattssonText |first=Per |date=2023-10-04 |title=Beslutat: Gula linjen i Stockholm får förarlösa tåg |url=https://www.di.se/nyheter/beslutat-gula-linjen-i-stockholm-far-forarlosa-tag/ |access-date=2024-09-24 |website=Dagens industri |language=sv}}</ref> Trains will be 70 metres in length, approximately half the length of trains used on other Stockholm Metro lines.<ref>{{Cite web |date=March 11, 2024 |title=Stockholm orders more C30 metro trains |url=https://www.railjournal.com/passenger/metros/stockholm-orders-more-c30-metro-trains/ |website=International Railway Journal}}</ref>

== Construction Methodsmethods ==

Preparatory works for the line commenced in 2024,<ref name=":1" /> and construction of the Yellow Line is set to begin in 2025. The project will employ two [[Tunneltunnel boring machine|tunnel boring machines]]s (TBMs) to excavate [[bedrock]] for the two tunnels in parallel, a method that aims to reduce disruptions and speed up the construction process compared to the traditional [[Drilling and blasting|drill-and-blast technique]] used in other Stockholm metro expansions.<ref>{{Cite news |last=Nyheter |first=S. V. T. |date=2024-05-21 |title=Tunnelbanans gula linje ska byggas med gigantiska tunnelborrar |url=https://www.svt.se/nyheter/lokalt/stockholm/gula-linjen-ska-byggas-med-gigantiska-tunnelborrar |access-date=2024-09-24 |work=SVT Nyheter |language=sv}}</ref> Blasting will still be used for the creation of station spaces and vertical access shafts. In mayMay 2024, plans for a controversial work tunnel originally planned near [[Rålambshovsparken]] were scrapped, and relocated to Lindhagensplan.<ref>{{Cite web |date=2024-05-22 |title=Stopp för tunnelbygge i Rålambshovsparken |url=https://www.dn.se/sverige/stopp-for-tunnelbygge-i-ralambshovsparken/ |access-date=2024-09-24 |website=DN.se |language=sv}}</ref>