| Otoyol Devlet yolu İl yolu | |
|---|---|
    Route markers | |
 Otoyol network in Turkey as of February 2022. Motorways in use, under construction and projected. | |
| System information | |
| Maintained by Karayolları Genel Müdürlüğü | |
| Formed | 1950, 1968 [1] |
| Highway names | |
| Otoyols: | Otoyol XX (O-XX) |
| System links | |
The highways in Turkey are divided into three types: motorways, state roads and provincial roads.
There are three types of intercity roads in Turkey:
Motorways are controlled-access highways that are officially named Otoyol . But it is not uncommon for people in Turkey to call them Otoban (referring to Autobahn) as this types of roads entered popular culture by the means of Turks in Germany. These roads depend on the General Directorate of Highways except those that are financed with a BOT model.
State roads ( Devlet Yolları ) are historical and free road network called State roads that are completely under the responsibility of the General Directorate of Highways except for urban sections (like the sections falling within the inner part of ring roads of Ankara, Istanbul or İzmir). Even if they mostly possess dual carriageways and interchanges, they also have some traffic lights and intersections.
Provincial roads (Il Yolları) are highways of secondary importance linking districts within a province to each other, the provincial center, the districts in the neighboring provinces, the state roads, railway stations, seaports, and airports.
As of 2023, there are 471 tunnels (total length 665 km) [5] and 9,660 bridges (total length 739 km) [6] on the network.
This map highlights different types of highways across Turkey as of October 1, 2024, classified by their funding and operational model:
Red: Highways that are open to service and funded by public resources.
Blue: Highways currently under construction, developed through the Build-Operate-Transfer (BOT) model, where private companies build and operate the highway for a specified period before transferring ownership to the government.
Green: Highways that are already open to service and were developed using the BOT model, now operational and managed under this system.
The Build-Operate-Transfer (BOT) model, known as "Yap-İşlet-Devret" (YID) in Turkish, allows for private investment in highway infrastructure to support expansion and maintenance without immediate public expenditure.
The numbering of state roads is as indicated below:
D.010 Karasu – Akçakoca – Karadeniz Ereğli-Zonguldak – Çaycuma – Bartın – Cide – İnebolu – Ayancık – Sinop – Gerze-Bafra-Samsun – Çarşamba – Ünye – Fatsa – Ordu – Bulancak – Giresun – Tirebolu – Trabzon – Sürmene – Rize – Ardeşen – Hopa – Borçka – Şavşat – Ardahan-Çıldır – Arpaçay – Akçakale village of Susuz 
D.100 Edirne – Lüleburgaz – Istanbul – Gebze – İzmit – Adapazarı – Düzce – Bolu – Gerede – Ilgaz – Merzifon – Amasya – Niksar – Erzincan – Erzurum – Ağrı – Doğubeyazıt – Gürbulak (Iran border)
D.200 Çanakkale – Bandırma – Bursa – Eskişehir – Sivrihisar – Ankara – Kırıkkale – Yozgat -Sivas – Erzincan 
D.300 Çeşme -İzmir – Salihli – Uşak – Afyon – Akşehir – Konya – Aksaray – Nevşehir – Kayseri – Pınarbaşı – Gürün – Malatya – Elazığ – Bingöl – Muş – Bitlis – Van 
D.400 Datça – Fethiye – Antalya – Alanya – Anamur – Mersin – Adana – Gaziantep – Şanlıurfa – Şırnak – Hakkâri- Yüksekova -Esendere (Iran border)
D.014 Kaynarca-Karasu
D.020 Edirne - Kırklareli-Pınarhisar-Vize-Saray-Istanbul-Şile-Kandıra-Kaynarca- Adapazarı 
D.030 Devrek -Yenice-Karabük-Araç-Kastamonu-Taşköprü-Boyabat-Durağan-Vezirköprü-Havza-Ladik-Near Taşova 
D.040 Şebinkarahisar -Alucra-Şiran- Kelkit 
D.050 Intersection of D885 (E97) and D883-Bayburt-Değimencik village (It also part of D915)-İspir-Yusufeli-Intersection of D950
D.052 Köse-Bayburt (From Bayburt it merges with D915)-Aşkale (From Bayburt it merges with D-100)-Nenehatun village of Dadaşköy
D.060 Intersection of D950-Intersection of Olur-Intersection of D955-Göle-Intersection of Susuz-Intersection of European route 691 (D965)-Yolboyu village of Susuz (D010)-Şahnalar village-Akyaka intersection-Doğukapı border gate (Armenia border)
D.070 Kars-Digor-Intersection of D080
D.080 Horasan-Karakurt village of Sarıkamış (Intersection of D957)-Kağızman-Tuzluca-Iğdır -Aralık-Dilucu border gate (Nakhcivan republic of Azerbaijan border) (Between Iğdır to Nakhcivan border is part of E99)
D.110 İpsala border gate (Greece border)-Keşan-Tekirdağ-Marmaraereğlisi-Silivri 
D.120 Intersection of D550-Kavakköy (Gelibolu)-Yeniköy (Şarköy)- Şarköy 
D.130 Yalova -Çiftlikköy-Altınova-Karamürsel-İzmit- Kocaeli 
D.140 Bediltahirbey village of Akyazı-Akyazı-Çavuşdere village of Mudurnu-Nallıhan-Beypazarı-Ayaş- Sincan-Akyurt-Kalecik 
D.150 Orhangazi -İznik-Mekece village of Pamukova (It merges with D-650)-Pamukova-Geyve- Taraklı 
D.160 Kestel-Turanköy (It shares same way with D200)-Yenişehir-Bilecik-Vezirhan-Gölpazarı- Taraklı (From Taraklı to Göynük it shares same way with D170)-Göynük-Mudurnu intersection- Bolu 
D.170 Taraklı -Göynük- Nallıhan 
D.180 Intersection of D765-Intersection of Kızılırmak-Intersection of Bayat-İntersection of İskilip-Çorum-Intersection of D795-Mecitözü-Intersection of D100-Intersection of D190 (Near Turhal)-Intersection of Pazar- Tokat 
D.190 Intersection of D200-Delice-Sungurlu-Intersection of D785-Alaca-Zile- Turhal 
D.210 Çanakkale - Çan 
D.230 Edremit -Havran-Balıkesir (Intersection of D573)-Kepsut-Dursunbey-Harmancık- Tavşanlı (Intersection of D595)-Kümbet village of İnönü (From Kütahya to Kümbet, it shares same way with D650)- Eskişehir 
D.240 Intersection of 550-Bergama-Kınık intersection-Soma-Kırkağaç intersection-Akhisar(From Akhisar to Sındırgı, it shares same way with D555)-Sındırgı-Simav-Intersection of D595-Gediz-Çavdarhisar- Kütahya 
D.250 Manisa - Turgutlu 
D.260 Afyonkarahisar -Bayat-Sivrihisar (From Sivrihisar to Polatlı, it shares same way with D200)-Polatlı-Haymana-Gölbaşı-Oğulbey village of Gölbaşı (It shares with D750)-Bala-Karakeçili -Kaman-Kırşehir-Mucur-Kayseri-Gemerek-Şarkışla-Kovalı village of Ulaş (From Kovalı, it shares with D850 to Kangal) -Ulaş-Kangal-Divriği-Arapgir-Keban- Elazığ 
D.270 Kırgındere village of Karayazı-Karayazı-Tutak 
D.280 D959 intersection-Bulanık-Malazgirt-Patnos-Erciş-Karahan village of Erciş (Intersection of D975)
D.290 Erciş-Van/Bitlis province border
D.302 Nevşehir-Ürgüp-Intersection of D300
D.310 Pamukyazı village of Torbalı (Intersection with D550)-Tire-Ödemiş-Kiraz-Hacıaliler village of Alaşehir (Intersection with D585)
D.320 Aydın-Sultanhisar-Nazilli-Kuyucak-Sarayköy-Denizli-Bozkurt-Çardak-Dazkırı- Dinar-Çobansaray village of Dinar (Intersection with D650)
D.330 Turgutreis of Bodrum-Bodrum-Milas-Yatağan (From Yatağan to Muğla, it shares with D550)-Muğla-Kale-Tavas-Sarıabat village of Tavas (From Sarıabat to Yassıhöyük village of Acıpayam, it shares with D585) -Serinhisar-Yeşilova-Burdur (D650)-Isparta (D685)-Eğirdir-Gelendost-Çetince village of Yalvaç-Şarkikaraağaç (D695)-Beyşehir-Konya-Karapınar-Ereğli-Intersection of Bor (D750)-Bor-Niğde (D805)-Yeşilhisar-İncesu-Intersection with D300-Kayseri-Pınarbaşı (Intersection with D815)-Intersection with D815 (Yeşilkent village of Sarız)-Göksun (D825)-Elbistan-Darıca village of Akçadağ (Intersection with D300)
D.340 Seydişehir (D695) – Yalıhüyük – Bozkır – Hadim – Sarıveliler – Ermenek – Mut (D715)
D.350 Uğurlu village of Fethiye – Korkuteli – Döşemealtı (Intersection with D650) – Antalya (D650)
D.550 Edirne – Çanakkale – Edremit – İzmir – Aydın – Muğla 
D.650 Karasu – Sakarya – Bilecik – Kütahya – Afyon – Sandıklı – Burdur – Antalya 
D.750 Zonguldak – Gerede – Ankara – Aksaray – Pozantı – Tarsus 
D.850 Ünye – Tokat – Sivas – Malatya – Gaziantep – Kilis (Syria border)
D.950 Hopa – Artvin – Erzurum – Bingöl – Diyarbakır – Mardin 
D.569 Çatalca (D020) – Büyükçekmece (D100)
D.915 Of, Trabzon (D010) – Dernekpazarı – Çaykara – Intersection with D050 – Bayburt-Maden, Bayburt – Aşkale (D100)Provincial roads (İl yolu) in Turkey are maintained by the KGM. These roads serve as secondary roads to the State Roads (D.XXX) and mainly connect small towns (every district's capital town is accessible either by a state or a provincial road) or acting as alternate routes to the trunk roads.
A provincial road is governed under the responsibility of the respective Turkish provincial government, and bears the license plate number of that province in the road identification number's first half. (Example 35-04 List of provincial roads in Izmir Province)
Transport in Turkey is road-dominated and mostly fuelled by diesel. Transport consumes a quarter of energy in Turkey, and is a major source of air pollution in Turkey and greenhouse gas emissions by Turkey. The World Health Organization has called for more active transport such as cycling. As of 2023 health impact assessment is not done in Turkey.
Asian Highway 1 (AH1) is the longest east-west route of the Asian Highway Network, running 20,557 km (12,774 mi) from Tokyo, Japan via Korea, China, Southeast Asia, Bangladesh, India, Pakistan, and Iran to the border between Turkey and Bulgaria west of Istanbul where it joins end-on with European route E80, running all the way to Lisbon, Portugal.
Otoyol 31, named the İzmir-Aydın Motorway or just the Aydın Motorway and abbreviated as the O-31 is a 127.8 km (79.4 mi) long toll motorway in western Turkey. Beginning at an intersection with İzmir Beltway, the O-31 runs south from İzmir to Aydın and parallels the D550 for most of its route.
Otoyol 30, also known as the İzmir Beltway and abbreviated as the O-30, is a 60.2 km (37.4 mi) long motorway that runs around the Gulf of İzmir from Balçova to Menemen. The motorway acts as a bypass for through-traffic around the city and connects to four other motorways; O-5, O-31, O-32 and O-33. For most of its route, the O-30 runs along the perimeter of İzmir, but enters urbanized areas in Balçova, Bornova, Karşıyaka and Çiğli. The entire motorway has six lanes and is a part of the E87 and E881.
Otoyol 4, named Anatolian Motorway and abbreviated as O-4, is a toll motorway connecting the northwestern Marmara Region to the Central Anatolia Region in Turkey. It runs parallel to the D.100 for more than half of its length and then parallels the D750 for most of the eastern half. The O-4 is a major expressway in Turkey as it connects eastern Istanbul and the heavily urbanized northeastern shore of the Sea of Marmara to the nation's capital, Ankara. The O-4 also makes up part of the International E-road network E80 and E89 as well as the AH-1 of the Asian Highway Network.
The General Directorate Of Highways (KGM) is a state agency in charge of the construction and maintenance of all public roadways outside of cities and towns in Turkey. It was established on 1 March 1950, following the acceptance of the International Highways Act in 1949. The agency is a sub unit of the Ministry of Transport and Infrastructure.
Otoyol 33, O-33 or North Aegean Motorway and abbreviated as the O-33 is a 55.2 km (34.3 mi) long toll motorway in western Turkey.Beginning at an intersection with İzmir Beltway, the O-33 runs north from Çiğli to Bergama and parallels the D550 for most of its route.
İzmir is a transportation hub for western Anatolia. İzmir has an extensive bus system, a developing metro, commuter rail system and a large urban ferry network. The city has highways connecting it to Çeşme, Menemen, Istanbul, Bursa, Aydın and Denizli as well as a beltway. Mass transportation is operated by four separate public agencies all owned by the İzmir Municipality.
Asian Highway 87 (AH87) is a road in the Asian Highway Network running 606 km from Ankara to Izmir, Turkey. The route is as follows:
Bayraklı Tunnels, formerly Karşıyaka Tunnels, are two motorway tunnels in series located on the İzmir's northern beltway, motorway O-30 E87, in Bayraklı district between Karşıyaka and Bornova of Izmir Province, western Turkey.
The Aslanlı Tunnel, is a motorway tunnel constructed on the Adana–Şanlıurfa motorway O-52 E90 AH84 in Gaziantep Province, southern Turkey.
Otoyol 22, abbreviated as O-22 and also known as Bursa–Sivrihisar Otoyolu, is a partly completed motorway in Turkey that will connect Bursa and Ankara in the future. The motorway starts at the Çağlayan intersection (O-5) and currently ends near Yenişehir at the State road D200.
The Ayran Tunnel, is a motorway tunnel constructed on the Adana–Şanlıurfa motorway O-52 E90 AH84 in Osmaniye Province, southern Turkey.
The Çakıt Tunnel, is a motorway tunnel constructed on the Ankara–Tarsus motorway O-21 E90 in Adana Province, southern Turkey.
The Taşoluk Tunnel, is a motorway tunnel constructed on the Adana–Şanlıurfa motorway O-52 E90 AH84 in Osmaniye Province, southern Turkey.
The İğdir Tunnel, is a motorway tunnel constructed on the Bursa–Sivrihisar motorway O-22 E90 in Bursa Province, northwestern Turkey. It was opened to the traffic in 2005.
D.505 is a 54-kilometre-long (34 mi), two-lane state road on the Karaburun Peninsula, in İzmir Province of western Turkey. The route runs from Karaburun at the tip of the peninsula to the intersection with the D300 near Gülbahçe. Traffic on the D505 is heavy during holidays, especially in the summer, due to the many vacation homes situated along the route.
The Otoyol 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.
The State Highways of the Republic of Turkey, abbreviated as TCK, are an integrated network of highways and roads in Turkey, consisting of a numbered grid spanning across the country. They are more commonly called State roads and are the primary road network in Turkey. The network is mostly maintained by the General Directorate of Highways (KGM), except for within large cities where the respective city municipality assumes responsibility.
