Back سكك حديد الجمهورية التركية Arabic Türkiyə Dövlət Dəmir Yolları Azerbaijani Турэцкая чыгунка Byelorussian Turske državne željeznice BS Türkiye Cumhuriyeti Devlet Demiryolları Catalan Türkiye Cumhuriyeti Devlet Demiryolları Czech Türkiye Cumhuriyeti Devlet Demiryolları German Ferrocarriles Estatales de la República de Turquía Spanish راهآهن ترکیه Persian Chemins de fer de l'État de la république de Turquie French
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 Map of the TCDD railway network as of 2023. TCDD owns and maintains all railway infrastructure in Turkey, while TCDD Taşımacılık operates train service. | |
 YHT high-speed rail service is the railway's premier train service. Here, HT80004 waits to depart the new ATG terminal in Ankara, bound for Konya. | |
| Overview | |
|---|---|
| Headquarters | Ankara, Turkey |
| Reporting mark | TCDD |
| Locale | Turkey |
| Dates of operation | 1929–present |
| Predecessor | State Railways and Seaports Administration |
| Successor | TCDD Taşımacılık (Railway operations only) |
| Technical | |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
| Previous gauge | 1,520 mm (4 ft 11+27⁄32 in) Broad gauge (Sarıkamış-Gyumri) 750 mm (2 ft 5+1⁄2 in) Narrow gauge (Sarıkamış-Erzurum) |
| Electrification | 25 kV, 50 Hz AC Overhead line |
| Length | 12,532 kilometres (7,787 mi)[1] |
| Other | |
| Website | www.tcdd.gov.tr |
The State Railways of the Republic of Turkey (Turkish: Türkiye Cumhuriyeti Devlet Demiryolları), abbreviated as TCDD, is a government-owned national railway company responsible with the ownership and maintenance of railway infrastructure in Turkey, as well as the planning and construction of new lines. TCDD was formed on 4 June 1929 as part of the nationalisation of railways in Turkey.[2]
The Turkish State Railways own and maintain all public railways in Turkey. This includes railway stations, ports, bridges and tunnels, yards and maintenance facilities. In 2016, TCDD controlled an active network of 12,532 km (7,787 mi) of railways, making it the 22nd-largest railway system in the world. Apart from railway infrastructure, TCDD also owns several rail transport companies within Turkey as well as a 50% share of the İzmir-area commuter rail system, İZBAN.
Prior to 2017, TCDD also operated all railways in Turkey. However, with the government taking steps to privatise some of the Turkish railway network, TCDD Taşımacılık was formed on 14 June 2016 to take over all railway operations. Handover of rolling stock was signed on 28 December of the same year and TCDD formally ceased all railway operations on 31 December 2016.[3]