Otoyol

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The Otoyol (Plural: Otoyollar) is the national network of controlled-access highways in Turkey. The term Otoyol translates to motorway while the literal meaning is auto-route. The Otoyol was first opened in 1973.

As of December 2023, there are 3,726 km of otoyol in service, the network passes through 28 provinces out of 81 in Turkey.[3]

The system previously consisted of three separate networks; the Edirne-Istanbul-Ankara corridor, the Aegean network centred on İzmir and the Southeastern network centred on Adana. With the completion of the O-5 in 2019 and the extension of the O-21 in 2020, these three networks have since been connected. The network is expected to expand to 8,325 kilometres (5,173 mi) by 2053.[4] The minimum speed limit on the Turkish otoyols is 40 km/h (25 mph) while the maximum speed is 140 km/h (87 mph).[5]

History

The construction of a national road system was prioritized in 1948, where the construction of new roads were greatly accelerated. This led to a rise in automobile usage in Turkey. By the 1960s, traffic problems were becoming prevalent in large cities and capacity on intercity roads needed to be upgraded. Plans to build new expressways were put into action in 1968, when construction of the Istanbul Inner Beltway was started.[6] The Beltway, known as the O-1, was opened together with the Bosporus Bridge in 1973 with great fanfare. This became the first motorway to be built in Turkey. The Istanbul Beltway was then to be a part of a large expressway spanning from Edirne, in East Thrace, to İskenderun, on the eastern shore of the Mediterranean Sea. Construction of this expressway first started in 1973 on a 14 km (8.7 mi) section between Pozantı and Akçatekir, on what would become the O-21. In 1975 construction of a 40 km (25 mi) section of the motorway from Gebze to Izmit was started. Due to financial problems during the following years, construction of the two otoyols were greatly slowed down. It wasn't until 1984 that these two motorways were opened to traffic.[1]

Turgut Özal became Prime Minister in 1983 and brought forth a policy of constructing new otoyols in Turkey. In 1985, construction of an intercontinental motorway spanning 772 km (480 mi) from Edirne to Ankara was started. This motorway project would serve as an outer beltway round Istanbul and also included the construction of a second bridge over the Bosporus, the Fatih Sultan Mehmet Bridge. The first section of the motorway, the 20 km (12 mi) long Edirne Beltway, was opened in 1987, followed by the opening of the Outer Beltway in Istanbul, from Levent to Kozyatağı, together with the FSM Bridge on 3 July 1988. The motorway was opened in sections in the following years until being completed in 1994. 2 decades later O-7 or Third Beltway opened in 2017.

In 1988 the construction of three new motorways in Izmir were started. O-32 opened in 1992 and it became first motorway in Agean Region. O-30 was built a year after. And a year after O-31 was opened, running between İzmir and Aydın. Finally in 2008, O-30 was completed. First section of O-5 was opened between Kemalpaşa and Bornova, after that in 2019 the motorway opened by phases section between Balıkesir junctions opened in 2018 and Kemalpaşa and Akhisar section was opened in March 2019 and in August 2019 remaining sections opened between Akhisar and Balıkesir West, Balıkesir North and Bursa West junctions. In 2020 two new motorways opened to the traffic. O-33 was opened in February 2020, as a continuous part of O-30, and in November 2020 the first section of O-21 extension was opened and in December 2020 was fully opened to Niğde. In 2021 the 8th phase of O-7 opened, and on 18 March 2022 Otoyol-6 opened between Malkara and Lapseki. Including the 1915 Çanakkale Bridge.

Today, two motorway extensions under construction: In O-7 9th phase between Nakkaş-Başakşehir link road and O-31 extension to Denizli, opening in 2023.

Network map

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List of Otoyol routes

Number Length (km) Length (mi) Northern or western terminus Southern or eastern terminus Opened Notes
O-1 20.5 12.7 48x48px in Eyüp, Istanbul Bağdat Ave. in Kadıköy, Istanbul 1970 - 1973 Istanbul Inner Beltway including the Bosphorus Bridge
O-2 36.9 22.9 O-3 in Mahmutbey, Istanbul 48x48px in Kozyatağı, Istanbul 1986 -1988 Istanbul Outer Beltway including the Fatih Sultan Mehmet Bridge
O-3 246.9 153.4 48x48px near Edirne 48x48px in Eyüp, Istanbul 1987 İstanbul-Edirne (Bulgaria-Greece-Turkey border) Motorway
O-4 372 231.2 O-2/O1-O2 connector in Ataşehir, Istanbul O-20 near Sincan, Ankara 1984 - 2007 İstanbul-Ankara Motorway, including the Mount Bolu Tunnel
O-5 409.4 254.4 O-4 near Gebze, Kocaeli O-30 in Bornova, Izmir 2016 - 2019 İstanbul-Bursa-İzmir Motorway, including the Osmangazi Bridge and the Orhangazi Tunnel
O-6 101 62.8 48x48px near Malkara, Tekirdağ 48x48px near Lapseki, Çanakkale 2022 The section containing the Çanakkale 1915 Bridge was opened in March 2022
O-7 275.2 171.1 O-3 near Kınalı, Istanbul O-4 near Akyazı, Sakarya 2016 - 2020 Northern Marmara Motorway, Contains the northernmost beltway of İstanbul, including the Yavuz Sultan Selim Bridge
O-20 110 68.4 Road forms complete ring around Ankara Road forms complete ring around Ankara 1987 Ankara Beltway
O-21 399.5 248.3 O-20 near Gölbaşı, Ankara 48x48px near Tarsus, Mersin 1984 - 2020 Ankara-Çukurova Motorway
O-21A 32 19.9 48x48px near Çakmak Bucağı, Konya O-21 near Eminlik, Niğde 1992
O-22 34.1 21.2 O-5 near Çağlıyan, Bursa 48x48px near Turanköy, Bursa 2006
O-30 60.4 37.5 O-32 in Balçova, Izmir O-33 in Çiğli, Izmir 1993 - 2006 İzmir Beltway
O-31 127.8 79.4 O-30 in Buca, Izmir 48x48px in Aydın 1996 - 2004 İzmir-Aydın Motorway
O-32 77.7 48.3 1065 Sk. in Çeşme Mustafa Kemal Sahil Blv. in Balçova, Izmir 1992 - 1996 İzmir-Çeşme Motorway
O-33 55.2 34.3 Çandarlı Connector near Çandarlı O-30 in Çiğli, İzmir 2019 Northern Aegean Motorway
O-51 99.2 61.6 48x48px in Çeşmeli, Mersin O-52 in Adana 1992 Adana-Mersin Motorway
O-52 365 226.8 O-51 in Adana 48x48px near Şanlıurfa 1992 Adana-Gaziantep-Şanlıurfa Motorway
O-53 150 93.2 O-52 near Ceyhan 48x48px in İskenderun 1993
O-54 35 21.7 48x48px in Gaziantep O-52 in Gaziantep 2013 Gaziantep Beltway

Future Projects

The motorway network is expected to reach 8,325 kilometres (5,172 mi) by 2053.[7] Future projects can be seen in the chart below:

Under Construction

Number Length (km) Length (mi) Northern or western terminus Southern or eastern terminus Opens Notes
O-31 165 102.5 O-31in Aydın 50x50px in Pınarkent, Denizli 2023
O-7 45 28 O-7 near Nakkaş, Istanbul O-7 near Başakşehir, Istanbul 2023

Tender Phase

Number Length (km) Length (mi) Northern or western terminus Southern or eastern terminus Tender Date Notes
O-51 98 60.9 50x50px in Taşucu O-51 near Çeşmeli, Mersin 23.09.2021
O-6 114 70.8 48x48px near Malkara, Tekirdağ O-3 near Kınalı, Istanbul N/A Part of Kınalı-Balıkesir Motorway.
48x48px 119 73.9 O-20 in Mamak, Ankara 50x50px in Delice N/A Part of Ankara-Samsun Motorway. Delice-Samsun section still in planning phase.
48x48px 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.
48x48px 137 85.2 O-4 in Gerede 50x50px in Ilgaz N/A Part of Gerede-Gürbulak Motorway (tr). Ilgaz-Merzifon-Koyulhisar-Pülümür-Horasan-Gürbulak sections still in planning phase.
O-51 155 96.3 50x50px in Antalya 50x50px in Alanya N/A Part of Afyon-Antalya-Alanya Motorway (tr). Afyonkarahisar-Burdur-Antalya section still in planning phase.
48x48px 31.3 19.5 O-53 near Dörtyol, Hatay 50x50px near Hassa, Hatay N/A Dörtyol-Hassa Motorway

Planning Phase

Number Length (km) Length (mi) Northern or western terminus Southern or eastern terminus Tender Date Notes
48x48px 12 7.46 O-30 near Sasalı, İzmir O-30 near İnciraltı, İzmir N/A İZKARAY (tr) - Gulf of İzmir Passage Project between Çiğli (Sasalı) and Balçova (İnciraltı); including one undersea tunnel and one bridge
48x48px 41 25.5 O-33 near Menemen, İzmir O-30 near Buca, İzmir N/A İzmir 2. peripheral motorway
O-31 155 96.3 O-31 in Denizli 48x48px near Bucak, Burdur N/A Denizli-Burdur section of Aydın-Denizli-Burdur Motorway
O-6 137 85.1 48x48px near Lapseki, Çanakkale O-5 near Balıkesir N/A Lapseki-Balıkesir section of Kınalı-Balıkesir Motorway
48x48px 350 217.5 48x48px} near Afyonkarahisar 48x48px near Antalya N/A Afyonkarahisar-Burdur-Antalya Motorway (tr)
48x48px 408 253.5 O-5 near Turgutlu, Manisa O-22 near Sivrihisar N/A Sivrihisar-İzmir section of Ankara-İzmir Motorway
Lua error in mw.title.lua at line 248: too many expensive function calls. 231 143.5 Lua error in mw.title.lua at line 248: too many expensive function calls. near Kestel, Bursa Lua error in mw.title.lua at line 248: too many expensive function calls. near Sivrihisar, Eskişehir N/A Sivrihisar-Bursa Motorway
Lua error in mw.title.lua at line 248: too many expensive function calls. 454 282.1 Lua error in mw.title.lua at line 248: too many expensive function calls. near Şanlıurfa 48x48px near Habur, Silopi, Şırnak N/A Şanlıurfa-Mardin-Habur Motorway (including link to Diyarbakır) (border crossing)
48x48px 303 188.3 50x50px near Samsun 50x50px near Delice N/A Delice-Samsun section of Ankara-Samsun Motorway
48x48px 144 89.5 50x50px near Bafra, Samsun 50x50px near Ünye, Ordu N/A Bafra-Samsun-Ünye Motorway
48x48px 183 113.7 50x50px near Ilgaz, Çankırı 50x50px near Merzifon, Amasya N/A Ilgaz-Merzifon Motorway (tr)
48x48px 919 571 50x50px near Merzifon, Amasya 50x50px near Gürbulak, Doğubayazıt, Ağrı N/A Merzifon-Gürbulak Motorway (tr) (border crossing)
48x48px 91 56.6 Lua error in mw.title.lua at line 248: too many expensive function calls. near Yalova Lua error in mw.title.lua at line 248: too many expensive function calls. near İzmit, Kocaeli N/A Yalova-İzmit Motorway (tr)
48x48px 440 273.4 48x48px near Afyonkarahisar 48x48px near Ulukışla, Niğde N/A Afyonkarahisar-Konya-Ereğli-Niğde (Ulukışla) Motorway
48x48px 105 65.3 48x48px near Bozüyük, Bilecik 48x48px near Afyonkarahisar N/A Bozüyük-Afyonkarahisar Motorway
Lua error in mw.title.lua at line 248: too many expensive function calls. 200 124.3 48x48px near Alanya, Antalya 48x48px near Silifke, Mersin N/A Alanya-Silifke Motorway
48x48px 105 65.3 Lua error in mw.title.lua at line 248: too many expensive function calls. near Düzce 48x48px near Zonguldak N/A Düzce-Zonguldak Motorway
48x48px 500 310.7 50x50px near Delice 50x50px near Refahiye, Erzincan N/A Delice-Sivas-Refahiye Motorway
48x48px 600 372.8 Lua error in mw.title.lua at line 248: too many expensive function calls. near Nevşehir 50x50px near Diyarbakır N/A Nevşehir-Kayseri-Malatya-Diyarbakır Motorway
48x48px 220 136.7 50x50px near Sivas 50x50px near Malatya N/A Sivas-Malatya Motorway
48x48px 50 31.1 Lua error in mw.title.lua at line 248: too many expensive function calls. near Şanlıurfa 50x50px near Akçakale, Şanlıurfa N/A Şanlıurfa-Akçakale Motorway (border crossing)
48x48px 475 295.2 50x50px near Diyarbakır 50x50px near Gürbulak, Doğubayazıt, Ağrı N/A Diyarbakır-Gürbulak Motorway (border crossing)
48x48px 540 335.6 50x50px near Trabzon 50x50px near Kahramanmaraş N/A Trabzon-Refahiye-Malatya-Kahramanmaraş Motorway
48x48px 250 155.4 50x50px near Pasinler, Erzurum 50x50px near Türkgözü, Posof, Ardahan N/A Pasinler-Türkgözü Motorway (border crossing)
48x48px 460 285.8 50x50px near Rize 50x50px near Diyarbakır N/A Rize-Erzurum-Diyarbakır Motorway
Lua error in mw.title.lua at line 248: too many expensive function calls. 78 48.5 Lua error in mw.title.lua at line 248: too many expensive function calls. near İskenderun, Hatay 50x50px near Cilvegözü, Reyhanlı, Hatay N/A İskenderun-Cilvegözü Motorway (border crossing)
Lua error in mw.title.lua at line 248: too many expensive function calls. 80 49.7 Lua error in mw.title.lua at line 248: too many expensive function calls. near Çandarlı, Dikili, İzmir Lua error in mw.title.lua at line 248: too many expensive function calls. near Savaştepe, Balıkesir N/A Çandarlı-Bergama-Savaştepe Motorway
48x48px 90 55.9 Lua error in mw.title.lua at line 248: too many expensive function calls. near Aydın 50x50px near Muğla N/A Aydın-Muğla Motorway
48x48px 75 46.6 50x50px near İpsala, Edirne 50x50px near Malkara, Tekirdağ N/A Malkara-İpsala Motorway (border crossing)
48x48px 130 80.8 Lua error in mw.title.lua at line 248: too many expensive function calls. near Havsa, Edirne 50x50px near Kavakköy, Gelibolu, Çanakkale N/A Havsa-Gelibolu Motorway
48x48px 180 111.9 50x50px near Lapseki, Çanakkale Lua error in mw.title.lua at line 248: too many expensive function calls. near Karacabey, Bursa N/A Lapseki-Karacabey Motorway

Toll

Most motorways are toll roads. The toll is based on the distance traveled. On most sections, the toll can be paid only with RFID-based HGS. Cash, OGS (active RFID) and KGS (card) methods have mostly been abolished in recent years. Only the newly opened Otoyol 5, and Otoyol 7 have sections where it is possible to pay by cash or with credit card. Apart from motorways, the other state roads in Turkey are free of charge.

The revenue from tolls in 2001 were still about $203 million, rising by 2012 to approximately $542 million. In 2012, the Bosphorus bridges saw 150 million vehicles pass and the other toll roads saw over 210 million vehicles.[8] In 2015, both bridges were used by 141 million vehicles while the other toll motorways were used by 271 million vehicles, generating a total revenue of $391 million (both bridges and motorways combined).[9]

Standards

File:Osman Gazi Köprüsü, Altınova ayağından köprüye giriş istikameti.jpg
Otoyol 5 near Altınova exit

Mainly because the country already has a wide network of double carriageways, the standards for motorways in comparison are very high. Most sections of otoyols have 3 lanes in each direction, aside from the O-4 around Izmit, a small stretch of the O-3 between Silivri and Esenyurt, and the section of O-32 between Alaçatı and Çeşme, which only have two lanes in each direction. Also the O-2, the O-7 and the O-20 all have four lanes in each direction along the entire route. The lanes are each 3.75 meters wide. Most exits have a connection road, which helps avoiding wrong-way driving and illegal access to the road (bikes, tractors and horses are not allowed on otoyols).

The minimum speed is 40 km/h (25 mph) and the maximum allowed speed is 120 km/h (75 mph), although speeding is not punished under 132 km/h (82 mph). However, on sections of the O-1 through central Istanbul the speed limit is 70 km/h (43 mph). In most tunnels the speed limit is 90 km/h (56 mph).

Alongside otoyols, there are resting areas, which are standardized as A, B, C and D type service areas. The D type is mainly a parking area. The C type has a fuel station added. The B type has a fuel station and a vehicle service station added. The A type additionally has a motel (in urban ones, this motel is traded for a large shopping mall).

Dangerous stretches such as tunnels or bridges where there is often fog, exits, interchanges and service areas are illuminated.

Since gradients are expected to be very low and turning radii are expected to be very high, otoyols have many bridges and tunnels which makes them very expensive to construct.

Otoyol signs in Turkey are green and uses the Highway Gothic typeface.

Statistics

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Length

Provinces

Gallery

  • O-3.jpg

    Junction of the O-2 and O-3 in Istanbul

  • O-1 and the Haliç Bridge, with the Metrobus line in between the two carriageways

  • Ankara-Istanbul Highway 05740.jpg

    The O-4 near Ankara

  • O-2 near the FSM Bridge

  • Otoyol 31 Izmir.jpg

    O-31 in Izmir

  • Izmir Otoyol ayrimi - panoramio.jpg

    Junction of O-30 and O-31 near Buca, Izmir

  • Yavuz Sultan Selim Bridge IMG 3015.jpg

    Yavuz Sultan Selim Bridge on the O-7

  • Osmangazi Köprüsü - Osmangazi Bridge.jpg

    Osmangazi Bridge on the O-5

  • Turkey road sign B-18.svg

    Otoyol entrance sign

See also

References

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Template:Motorways in Europe

  1. ↑ 1.0 1.1 Muhteşem Kaynak - Türkiye'de Otoyollar
  2. ↑ Length of Motorways
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Birol Cetin, Serap Baris, Serap Saroglu - Türkiye’de Karayollarının Gelişimine Tarihsel Bir Bakış, p.173
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ http://www.kgm.gov.tr/SiteCollectionDocuments/KGMdocuments/Istatistikler/OtoyolMaliBilgileri/OtoyolVeKopruGelirleri%282001-2015%29.pdf Archived 2016-10-19 at the Wayback Machine Otoyol statistics
  10. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ https://www.kgm.gov.tr/SiteCollectionDocuments/KGMdocuments/Istatistikler/OtoyolEnvanterBilgisi/YillaraİtibariyleYapimiTamamlanmisOtoyollar.pdf
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