| Otoyol | |
|---|---|
.svg)    Route markers for three Turkish Motorways | |
.png) Otoyol network in Turkey as of February 2022. Motorways in use, under construction and projected. | |
| System information | |
| Maintained by Karayolları Genel Müdürlüğü | |
| Formed | 1968 |
| Highway names | |
| Otoyols: | Otoyol XX (O-XX) |
| System links | |
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 27 of the country's 81 provincial-level administrative divisions.
As of December 2023, there are 3,726 km of toll motorways network (otoyollar) in service.[2]
- ^ Length of Motorways
- ^ "YILLAR İTİBARIYLA YAPIMI TAMAMLANMIŞ OTOYOLLAR [Motorway completed by years] (2023)" (PDF). kgm.gov.tr. Karayolları Genel Müdürlüğü (KGM). Retrieved 2024-01-05.