List of otoyol routes in Turkey

Otoyol routes in Turkey follow a regional based two-digit numbering system. All routes have the prefix O on all signage and maps. Motorways that start in the Marmara Region are all single digit. Motorways that start in The Central Anatolia Region have a first digit of two. Motorways starting in the Aegean Region have a first digit of three. Motorways starting in the Mediterranean Region and Southeastern Anatolia Region have a first digit of five. The O-21A is the only motorway to have a letter assigned to it. Most motorways in Turkey have six lanes (3+3 lanes), however there are sections of some motorways with only four (2+2) lanes. The motorways extended to 23 of the country's 81 provincial-level administrative divisions. By the end of 2019, the total length of Turkey's motorways network reached 3,060 kilometers, according to official sources.[1]

Motorway network in Turkey. Highways in use, under construction and projected.

List of Otoyol routes
Number Length (km)Length (mi)Northern or western terminusSouthern or eastern terminusBuiltNotes
O-1 20.5 12.7 O-3/ D.100 in Eyüp, Istanbul Bağdat Ave. in Kadıköy, Istanbul 1973 Istanbul Inner Beltway
O-2 36.9 22.9 O-3 in Mahmutbey, Istanbul D.100 in Kozyatağı, Istanbul 1988 Istanbul Outer Beltway
O-3 246.9 153.4 D.100 near Edirne O-1/ D.100 in Eyüp, Istanbul 1987
O-4 372 231.2 O-2/O1-O2 connector in Ataşehir, Istanbul O-20 near Sincan, Ankara 1984
O-5 409.4 254.4 O-4 near Gebze, Kocaeli O-30 in Bornova, Izmir 2016 till 2019 Section from Bursa North to Gebze including Osman Gazi Bridge opened in 2016.
O-7 201.2 125.1 O-3 near Kınalı, Istanbul Sevindikli, Kocaeli 2016 till 2020 Section between Sevindikli and Akyazı is still under construction. Yavuz Sultan Selim Bridge opened in 2016.
O-20 110 68.4 Road forms complete ring around Ankara Road forms complete ring around Ankara 1987 Ankara beltway
O-21 124.5 77.4 near Niğde D.400 near Tarsus, Mersin 1984 Section between Niğde and Ankara is under construction.
O-21A 32 19.9 near Çakmak Bucağı, Konya O-21 near Eminlik, Niğde 1992
O-22 34.1 21.2 O-5 near Çağlıyan, Bursa near Turanköy, Bursa 2006
O-30 60.4 37.5 O-32 in Balçova, Izmir in Menemen, Izmir 1993 till 2006 Izmir Beltway
O-31 127.8 79.4 O-30 in Buca, Izmir in Aydın 1996 till 2004
O-32 77.7 48.3 1065 Sk. in Çeşme Mustafa Kemal Sahil Blv. in Balçova, Izmir 1992 till 1996
O-33 76 47 Port of Çandarlı near Çandarlı O-30 in Çiğli, İzmir 2019
O-51 99.2 61.6 D.400 in Çeşmeli, Mersin O-52 in Adana 1992
O-52 365 226.8 O-51 in Adana D.400 near Şanlıurfa 1992
O-53 150 93.2 O-52 near Ceyhan in İskenderun 1993
O-54 35 21.7 D.400 in Gaziantep O-52 in Gaziantep 2013 Gaziantep Beltway

Projects

Under Construction
Number Length (km)Length (mi)Northern or western terminusSouthern or eastern terminusOpensNotes
O-7 74 46 Sevindikli, Kocaeli O-4 near Akyazı, Sakarya 2020
O-21 275 170.9 O-20 near Gölbaşı, Ankara O-21 near Yeşilgölcük, Niğde 2021
101 62.8 near Malkara, Tekirdağ D.200 near Lapseki, Çanakkale 2022 Part of Kınalı-Balıkesir Motorway. Two other sections between Malkara and Kınalı, as well as Lapseki and Balıkesir are still in planning phase.

Tender Phase
Number Length (km)Length (mi)Northern or western terminusSouthern or eastern terminusTender DateNotes
O-51 98 60.9 in Taşucu O-51 near Çeşmeli, Mersin N/A
119 73.9 O-20 in Mamak, Ankara in Delice N/A Part of Ankara-Samsun Motorway. Delice-Samsun section still in planning phase.
O-31 165 102.5 O-31in Aydın in Pınarkent, Denizli 11 June 2020
130 80.8 O-22 in Sivrihisar O-20 in Tulumtaş, Ankara N/A Part of Izmir–Ankara Motorway. İzmir-Sivrihisar section still in planning phase.
137 85.2 O-4 in Gerede in Ilgaz N/A Part of Gerede-Gürbulak Motorway. Ilgaz-Merzifon-Koyulhisar-Pülümür-Horasan-Gürbulak sections still in planning phase.
155 96.3 in Antalya in Alanya N/A Part of Afyon-Antalya-Alanya Motorway. Afyonkarahisar-Burdur-Antalya section still in planning phase.

Planning Phase

2023 Targets[2]

2035 Targets

  • Afyonkarahisar-Konya-Ereğli-Niğde (Ulukışla) Motorway (440 km)
  • Bozüyük-Afyonkarahisar Motorway (105 km)
  • Alanya-Silifke Motorway (200 km)
  • Düzce-Zonguldak Motorway (105 km)
  • Delice-Sivas-Refahiye Motorway (500 km)
  • Nevşehir-Kayseri-Malatya-Diyarbakır Motorway (600 km)
  • Sivas-Malatya Motorway (220 km)
  • Şanlıurfa-Akçakale Motorway (50 km)
  • Diyarbakır-Gürbulak Motorway (475 km)
  • Trabzon-Refahiye-Malatya-Kahramanmaraş Motorway (540 km)
  • Pasinler-Türközü Motorway (250 km)
  • Rize-Erzurum-Diyarbakır Motorway (460 km)
  • İskenderun-Cilvegözü Motorway (Otoyol 53) (78 km)
  • Malkara-İpsala Motorway (Greek border) (50 km)
  • Malkara-Havsa Motorway (110 km)
  • Bandırma-Susurluk Motorway (56 km)
  • Bandırma-Lapseki Motorway (130 km)
  • Çandarlı-Bergama-Savaştepe Motorway (Otoyol 33) (80 km)
  • Aydın-Muğla Motorway (90 km)

See also

References
  1. "YILLAR İTİBARIYLA YAPIMI TAMAMLANMIŞ OTOYOLLAR (2019)" (PDF). Kgm.gov.tr (in Turkish).
  2. "Otoyol Projeleri" (in Turkish). KGM. Retrieved 10 January 2016.
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