page_title: List of otoyol routes in Turkey
hierarchical_section_title: List of otoyol routes in Turkey
caption_attribution_description: English: Revised Motorway Map of Turkey (2020)
context_page_description: 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, however there are sections of some motorways with only four 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.
context_section_description: 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.
caption: Motorway network in Turkey. Highways in use, under construction and projected.
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