Baku–Tbilisi–Kars railway

Baku–Tbilisi–Kars railway
Name	Baku–Tbilisi–Kars railway
Locale	Azerbaijan; Georgia; Turkey
Type	Rail freight and passenger
Status	Operational
Open	30 October 2017
Operator	Azerbaijan Railways; Georgian Railway; Turkish State Railways
Linelength	826 km
Gauge	1,520 mm; 1,435 mm (break-of-gauge interface)
Map state	collapsed

Baku–Tbilisi–Kars railway The Baku–Tbilisi–Kars railway connects Baku in Azerbaijan with Kars in Turkey via Tbilisi in Georgia, creating a transregional link between the Caspian Sea, the South Caucasus, and Anatolia. Intended to provide alternative corridors to routes through Russia, the project interfaces with projects such as Trans-Caspian International Transport Route, Middle Corridor, and links to plans for the International North–South Transport Corridor. The line has implications for freight corridors serving China, European Union, India, and Central Asia and interacts with institutions like the European Bank for Reconstruction and Development, Asian Development Bank, and World Bank.

Overview

The project aims to provide a continuous rail link joining Azerbaijan's port of Baku, Georgia's capital Tbilisi, and Turkey's eastern city Kars, integrating with ports such as Poti and Batumi and meeting traffic from Baku International Sea Trade Port and Baku Sea Trade Port. The corridor assembles infrastructure from national carriers including Azerbaijan Railways CJSC, Georgian Railway LLC, and Turkish State Railways (TCDD) and intersects transport initiatives like Belt and Road Initiative and Silk Road Economic Belt. The route is positioned alongside energy corridors such as Baku–Tbilisi–Ceyhan pipeline and South Caucasus Pipeline.

History and planning

Early concepts trace to late Ottoman and Soviet Union-era networks linking Anatolia and the Caucasus through routes involving Erzurum and Batumi, influenced by treaties including the Treaty of Kars and infrastructure plans around Trans-Caucasian Railway. Post-Soviet negotiations among Azerbaijan, Georgia, and Turkey intensified during the 2000s amid energy diplomacy led by figures such as Ilham Aliyev and Recep Tayyip Erdoğan and regional diplomacy involving Bilateral relations of Azerbaijan and Turkey, Georgia–Turkey relations, and Azerbaijan–Georgia relations. Feasibility studies engaged firms from Germany, Italy, and Turkey while international lenders including European Investment Bank and Islamic Development Bank examined funding modalities. Plans adapted to gauge differences inherited from Russian Empire and Soviet Union standards and to geopolitical events such as the Russo-Georgian War.

Route and infrastructure

The railway traverses border nodes at Red Bridge (Azerbaijan–Georgia) and Akhaltsikhe areas, crosses terrain near Caucasus Mountains and connects to the Baku–Tbilisi–Ceyhan pipeline corridor, involving bridges, tunnels, and logistics terminals. Rolling stock interoperates with differing gauges—Russian gauge and standard gauge—necessitating break-of-gauge facilities and bogie change or transshipment yards near Akhaltsikhe and Kars similar to systems used at Druzhba station and Kidričevo. Freight terminals were upgraded to handle containers bound for hubs such as Istanbul, Constanța, Poti, and Batumi, and to interface with ferry services across the Caspian Sea to ports like Aktau and Turkmenbashi. Key engineering contractors included companies linked to Foster + Partners-style consortia and regional constructors from Turkey and Azerbaijan.

Operations and services

Freight services carry commodities including containerized goods, oil-related products, minerals, and manufactured goods between markets like China, Kazakhstan, Uzbekistan, Turkmenistan, Iran, Iraq, and EU member states such as Germany and Poland. Passenger services provide regional connections between Baku, Tbilisi, and Kars, serving tourism flows to destinations such as Batumi and Trabzon and pilgrims bound for sites like Ahlat. Operations coordinate across national operators—Azerbaijan Railways, Georgian Railway, TCDD Taşımacılık—and use customs procedures informed by agreements with Customs Union-style arrangements and regional trade rules like those of World Trade Organization members. Scheduling and wagon routing utilize software solutions similar to those adopted by Deutsche Bahn and Russian Railways.

Economic and geopolitical significance

The corridor is positioned as a component of macro-regional strategies promoted by leaders including Ilham Aliyev, Recep Tayyip Erdoğan, and Mikheil Saakashvili's successors, affecting energy-export routes that include BTC pipeline and regional gas linkages like Trans-Anatolian Natural Gas Pipeline. By offering an alternative to routes through Russia and Iran, the line alters freight flows between East Asia and Europe and strengthens ties among Azerbaijan, Georgia, and Turkey within platforms such as the Organization of Turkic States and Black Sea Economic Cooperation (BSEC). Economic impacts reach sectors in Istanbul, Bursa, Ganja, and Tbilisi's logistics clusters while influencing markets in Kazakhstan, Turkmenistan, and Uzbekistan.

Construction and financing

Construction involved bilateral agreements signed in the 2000s and 2010s and contracting by firms from Turkey, Azerbaijan, and Georgia, with technical input from engineering consultancies known in projects in Central Asia and Middle East. Financing combined state budgets, sovereign guarantees, and loans or grants from institutions like the European Bank for Reconstruction and Development, Asian Development Bank, Islamic Development Bank, and export credit agencies comparable to ECAs supporting infrastructures elsewhere. Cost estimates evolved due to terrain, gauge conversion elements, and border-station works; procurement adhered to standards familiar from projects involving World Bank procurement rules and cross-border project management practiced in TRACECA initiatives.

Environmental and social impact

Environmental assessments addressed habitats in the Caucasus biodiversity hotspot and potential effects on rivers feeding the Kura River and local ecosystems near Trialeti Range, prompting mitigation measures similar to those in projects near Zangezur, Lesser Caucasus, and Pontic Mountains. Social impacts touched communities in Kars Province, Kvemo Kartli, and Absheron District involving land acquisition, resettlement processes guided by safeguards modeled on World Bank and EBRD policies, and employment effects comparable to other regional transport projects. Cultural heritage surveys considered sites belonging to Armenian cultural monuments and Ottoman-era structures, invoking consultations with municipal bodies in Kars, Tbilisi, and Baku.

Category:Railway lines in Azerbaijan Category:Railway lines in Georgia (country) Category:Railway lines in Turkey