M11 (Istanbul Metro)

M11 Gayrettepe–Istanbul Airport–Halkalı
Istanbul Airport Station
Overview
StatusOperational
OwnerMinistry of Transport and Infrastructure
Line numberM11
LocaleIstanbul, Turkey
Termini
Stations16 (1 reserved)
Service
TypeRapid transit
SystemIstanbul Metro
Services1
OperatorTCDD Transport
DepotTaşoluk
Rolling stock176 CRRC Zhuzhou[1]
History
Opened22 January 2023 (2023-01-22)
Last extension20 June 2026 (2026-06-20)
Technical
Line length69 km (43 mi)
Number of tracks2
CharacterAirport express, underground
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Loading gaugeUIC standard gauge
Minimum radius200 metres (660 ft)
ElectrificationOverhead line, 1,500 V DC
Operating speed120 km/h (75 mph)
Route map

 Kargo Terminali
 İstanbul Havalimanı
 Terminal 2
airport inset
Taşoluk
M11 Depot
İhsaniye
Arnavutköy Hastane
Göktürk
İbn Haldun Üniversitesi
Kemerburgaz
Line M3 M11 (Istanbul Metro) Kayaşehir - to B. Sahil
M3 Depot
Hasdal
Line M9 M11 (Istanbul Metro) Olimpiyatköy - to Ataköy
Line M7 to Mahmutbey
Line M7 M11 (Istanbul Metro) H. Stadı / A. Mahallesi - to Yıldız / Hastane
Kağıthane Line M7 M11 (Istanbul Metro)
to Bahçeşehir
Line M2 to Yenikapı / Hacıosman
Marmaray Line M1 M11 (Istanbul Metro) Halkalı - to Yenikapı
Gayrettepe Line M2 Line M7 M11 (Istanbul Metro)
 Line M7 to Yıldız
Marmaray to Gebze
Key
Metro M11 (Istanbul Metro) Line M1 Line M2 Line M3 Line M7 Line M9
commuter rail
future Metro
Marmaray Marmaray
Metro station
transfer
future station
existing to future
depot
future transfer

Line M11, officially referred to as the M11 Gayrettepe–Istanbul Airport–Halkalı Metro Line (Turkish: Gayrettepe–İstanbul Havalimanı–Halkalı Metro Hattı), is a line of the Istanbul Metro. It runs between Gayrettepe and Halkalı via Istanbul Airport.[2][3][4] The line is 69 km (43 mi) long, making it the longest line in the Istanbul Metro. It is entirely underground, making it the second longest continuous subway tunnel in the world, and the longest in Europe.

The line used to be operated by a driver on board, before becoming fully automated and driverless on 3 January 2024.[5]

Route

M11 route diagram

The purpose of this line is to provide direct and quick access from Istanbul Airport in Arnavutköy to Levent, Istanbul's main commercial center and to Halkalı, one of the city's most important train stations. Unlike other metro lines, the M11 will be a limited stop service, meaning that stations will be spaced further apart. This is most noticeable towards the line's southern ends, where the M11 will only have seven stations within Istanbul's urban area: Halkalı, Halkalı Stadı, Olimpiyatköy, Kayaşehir and İbn Haldun Üniversitesi in the west and Gayrettepe and Kağıthane in the east.

It has two legs, one from Gayrettepe to Istanbul Airport line and the second from Halkalı to Istanbul Airport line. The first leg of the rapid transit line is 37.5 km (23.3 mi) long with nine stations. The second leg of the line is 31.5 km (19.6 mi) long with seven stations, in a total of 69 km (42.9 mi) with sixteen stations. The line is the longest continuous subway tunnel in the world. The travel time between the end stations is around 60 minutes at a maximum speed of 120 km/h (75 mph).[6] The line runs through six districts of Istanbul, Şişli, Kağıthane, Eyüpsultan, Arnavutköy, Başakşehir and Küçükçekmece. It is expected that the line will carry annually around 94 million passengers. The M11 line connects to other rapid transit lines: Marmaray, M1, M2, M3, M7 (twice), M9, and at the airport to the high-speed train line.[7]

Construction

The investment budget of the construction is €999.8 million. The Turkish construction consortium Kolin-Şenbay won the tender for the building of the metro line in December 2016. The line was not scheduled to be completed before the airport's official 29 October 2018 airport opening.[6] The line was constructed in four sections:

  • Kağıthane–Istanbul Airport, opened on 22 January 2023[8][9][10]
  • Gayrettepe–Kağıthane, opened on 29 January 2024[11][12]
  • Arnavutköy Hastane–Istanbul Airport, opened on 19 March 2024[13][14]
  • Halkalı–Arnavutköy Hastane, tunnel construction completed in October 2025, opening ceremony held on 19 June 2026, officially opened on 20 June 2026[15][16][17]

Opening timeline

Stage Segment Commencement Length Station(s)
1 Kağıthane – Istanbul Airport Cargo Terminal 22 January 2023 34.0 km (21.13 mi) 7
Gayrettepe – Kağıthane 29 January 2024 3.5 km (2.17 mi) 1
2 Istanbul Airport Cargo Terminal – Arnavutköy Hastane 19 March 2024 14.0 km (8.70 mi) 2
Arnavutköy Hastane – Halkalı 20 June 2026 17.5 km (10.87 mi) 5

Rolling stock

M11 train

The rolling stock was manufactured by CRRC Zhuzhou Locomotive, and was the first 120 km/h (75 mph) class automated metro train exported by China. 176 metro cars were supplied for the Line 11. The contract was awarded in January 2020, and the production of the first train was completed six months later,[18] although these ten sets were not automated. The first train was delivered on September 6, 2020.[19] On 3 January 2024, the Minister of Transport and Infrastructure, Abdulkadir Uraloğlu announced that 15 automated trainsets were ready to enter into use.[5]

Stations

The M11 has sixteen stations. Out of these sixteen, only eight are within the Istanbul metropolitan area.

No Station District Transfer Type Notes
1 Gayrettepe Şişli & Beşiktaş Line M2・Metrobus (Istanbul) (Zincirlikuyu)
İETT Bus: 25G, 27E, 27SE, 27T, 29, 29A, 29C, 29D, 29İ, 29P, 29Ş, 30A, 30M, 36L, 40B, 41AT, 41E, 42, 42M, 42Z, 43R, 50Z, 58A, 58N, 58S, 58UL, 59A, 59B, 59CH, 59K, 59N, 59R, 59S, 59UÇ, 62, 62G, 63, 64Ç, 65G, 121A, 121B, 121BS, 122B, 122C, 122D, 122Y, 251, 252, 256, 522, 522B, 522ST, 599C, 622, DT1, DT2, U1, U2		 Underground Zincirlikuyu Cemetery・Büyükdere Avenue・Zorlu Center・ Zincirlikuyu İETT Platforms
2 Kağıthane Kâğıthane Line M7・HızRay (planned)
İETT Bus: 41ST, 46Ç, 46T, 48, 48H, 48N, 48T, 50D, 62, 63, 64Ç, 65A, 65G, K1, K2, K3, K4, TM3		 Kağıthane Creek・Kağıthane İETT Platforms
3 Hasdal Eyüpsultan İETT Bus: 48, 50G, H-2, TM4 D020-TR.svg D.020・(New) Istanbul University (Çapa) Medical Faculty Hospital・Hasdal Barracks
4 Kemerburgaz İETT Bus: 48, 48C, 48D, 48G, 48K, 48KA, 48L, 48P, 48R, 50G, TM4 Kasımpaşa SK Kemerburgaz Facilities・Kemerburgaz City Forest・Consulate General of Turkmenistan
5 Göktürk İETT Bus: 48K, 48KA, 48P, D2 (open only on summer) Istanbul Regional Directorate of Forestry Göktürk Nursery
6 İhsaniye İETT Bus: 48KA, 48M, 48P İBB Biomethanization Facility
7 Terminal 2 Arnavutköy (İstanbul Airport)・High Speed Train (YHT) (İstanbul Airport High Speed Train Terminal)
İETT Bus: H-1, H-2, H-3, H-6, H-7, H-8, H-9		 Station Not In Operation - Passing
8 İstanbul Havalimanı (Airport) Istanbul Airport・Ali Kuşçu Mosque
9 Kargo Terminali (Cargo Terminal) Istanbul Airport・THY Cargo IGA Facilities
10 Taşoluk İETT Bus: 36AS, 36D, 36HT, 36YS, 336A, 336G, 336H, 336T, H-6 Depot・Ministry of Forestry Plantation Site
11 Arnavutköy Hastane İETT Bus: 36AS, 36AY, 36B, 36CB, 36D, 36HT, 36TC, 36Y, 36YS, 48KA, 48M, 336, 336A, 336G, 336H, 336K, 336M, 336MC, 336T, ARN1, H-6, MK22 Arnavutköy State Hospital・Arnavutköy City Park・Arnavutköy İETT Platforms
12 İbn Haldun Üniversitesi Başakşehir İETT Bus: 36B, 36CB, 36F, 36HT, 36TC, 36Y, 78B, 78C, 78E, 78F, 78FB, 78G, 78H, 78ZB, 78Ş, 79C, 79F, 79FY, 79GE, 79KM, 79KT, 79M, 98, 98KM, 146BA, 146F, 146K, 336, 336A, 336G, 336H, 336K, 336M, 336MC, 336T, H-6, MK31 Ibn Haldun University Main Campus・Fenertepe İETT Platforms
13 Kayaşehir Line M3 (Kayaşehir Merkez)
İETT Bus: 36F, 78E, 78F, 79F, 79FY, 79GE, 79KM, 79KT, 79M, 146BA, 146F, MK1, MK22		 Başakşehir National Garden
14 Olimpiyatköy Line M9 (Olimpiyat)
İETT Bus: 36AS, 36AY, 36F, 76A, 79FY, 79K, 79Ş, 142E, 144M, 146A, 146T, HS1, MK2, MK11, MK12, MK13, MK14, MK15, MK16		 Atatürk Olympic Stadium・Olimpiyatköy İETT Platforms
15 Halkalı Stadı Küçükçekmece Line M7 (Atakent Mahallesi, under construction)
İETT Bus: 76V, 78G, 78Ş, 89A, 89K, 98S, 141M, 89YB, HT1, HT2, KÇ2, MK31, MR40, MR50, MR51		 İBB Halkalı Football Stadium Sports Facilities・İstanbul Tema Hospital・Tema World Mall
16 Halkalı Marmaray High Speed Train (YHT) (Halkalı)・Line M1 (planned)
İETT Bus: 79Y, 89A, 143, BN1, H-3, MR40, MR42, MR50, MR51		 TCDD Lodgings・Halkalı Customs Directorate・Halkalı Marmaray İETT Platforms

References

  1. ↑ "Istanbul airport metro train contract awarded". Railway Gazette International. April 28, 2020. Retrieved 2020-05-13.
  2. ↑ "İstanbul Havalimanı Metrosu açılıyor: 'Raylı sistemlerle entegre olacak'". BBC News. 22 January 2023. Retrieved 22 January 2023.
  3. ↑ "İstanbul Airport metro opens". Rail Turkey. 2023-01-18. Retrieved 2023-01-22.
  4. ↑ Istanbul M11 line opens Tramways & Urban Transit issue 1023 March 2023 page 88
  5. 1 2 Özen, Ege Buğra (2024-01-03). "İstanbul Havalimanı'na yerli metro". AirTurkHaber (in Turkish). Retrieved 2024-01-04.
  6. 1 2 "3. Havalimanı'na Metroyu Şenbay ve Kolin götürecek". Yeni Şafak (in Turkish). 2016-12-03. Retrieved 2017-08-15.
  7. ↑ "3. Havalimanı metro hattında ihale yapıldı". Habertürk (in Turkish). 2016-05-20. Retrieved 2017-08-14.
  8. ↑ "Türkiye'nin "en hızlı metrosu" Kağıthane-İstanbul Havalimanı Metrosu hizmete girdi" (in Turkish). Anadolu Agency.
  9. ↑ "Automated metro to Istanbul airport opens". Railway Gazette International. 26 January 2023. Retrieved 2026-01-12.
  10. ↑ Artymiuk, Simon (2023-01-23). "Kağıthane - Istanbul Airport metro line opens". International Railway Journal. Retrieved 2026-01-12.
  11. ↑ "İstanbul'a sürücüsüz metro! Ulaşım süresi 30 dakikaya düşüyor". Milliyet (in Turkish). 2024-01-03. Retrieved 2024-01-04.
  12. ↑ "Urban transport industry news round-up". Railway Gazette International. 2024-02-07. Retrieved 2026-05-09. A 3·5 km one-station extension of Istanbul metro Line 11 from Kağıthane to Gayrettepe was opened by President Recep Tayyip Erdoğan on January 29.
  13. ↑ Garip, Ergin (2023-10-30). "Bakan Uraloğlu: İstanbul Havalimanı-Kayaşehir metro hattı kesimini Mart 2024'ten önce açacağız". Anadolu Agency. Retrieved 2023-12-07.
  14. ↑ "Local elections prompt flurry of Istanbul metro openings". Railway Gazette International. 2024-04-11. Retrieved 2026-05-09. Line M11 serving Istanbul's main airport was extended by a further 10 km on March 19 with the opening of a section between Kargo Terminali and Arnavutköy by Minister of Transport & Infrastructure Abdulkadir Uraloğlu.
  15. ↑ "Cumhurbaşkanı Erdoğan: Biz tribünlere değil, her zaman gönüllere oynadık" [President Erdoğan: We have always played to the hearts of the people, not to the stands.]. TRT Haber (in Turkish). Archived from the original on 19 June 2026. Retrieved 20 June 2026.
  16. ↑ "Opening of final section completes Istanbul metro Line M11". Railway Gazette International. 2026-06-22. Retrieved 2026-06-22. President Recep Tayyip Erdoğan inaugurated the final section of Istanbul metro Line M11 on June 19, with passenger services beginning the following day.
  17. ↑ Briginshaw, David (2026-06-22). "Istanbul completes longest metro line". International Railway Journal. Retrieved 2026-06-24.
  18. ↑ Burroughs, David (28 July 2020). "CRRC completes first Istanbul automated metro train". International Railway Journal.
  19. ↑ "First Line 11 airport metro cars arrive in Istanbul". Railway Gazette International. 18 September 2020. Retrieved 2026-01-12.

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