What the Middle Corridor Actually Is
The route runs from ports such as Lianyungang in China, across Kazakhstan by rail, over the Caspian Sea by ferry to Aktau or Kuryk, through Azerbaijan and Georgia, and on to Turkey or the Black Sea for onward delivery into Europe. According to Council of the European Union documentation on the April 2025 EU-Central Asia Summit, the route is roughly 3,000 kilometers shorter than the alternative northern route through Russia. It is not a single road or rail line but a chain of rail, sea ferry, and road segments operated by different national carriers and port authorities in each country.
Why Traffic Has Surged Since 2022
The corridor existed long before 2022, but Russia's invasion of Ukraine and the sanctions that followed made the established northern rail route through Russia commercially and politically unworkable for many Western and Chinese shippers, and volumes shifted to the Middle Corridor instead. Industry reporting (Caspian News, Caspian Post) put 2024 cargo volume across the Caspian segment at roughly 4.1 to 4.5 million tonnes, an increase of around 60 to 70 percent year on year depending on the source and the exact segment measured. Container traffic grew even faster: some 50,500 TEU moved via the route from January to November 2024 alone, more than double the prior year. The route's design capacity has since been raised to about 6 million tonnes and 100,000 TEU per year, and growth continued into 2025, with more than 2 million tonnes recorded in the first nine months of the year.
The European Union has backed this shift with direct investment. Under the Global Gateway initiative, the EU and partner institutions committed roughly €10 billion to Central Asian connectivity in January 2024, followed by a further €12 billion package announced at the first EU-Central Asia Summit in April 2025, including €3 billion earmarked specifically for transport infrastructure.
The Corridor's Real Bottleneck: The Caspian Sea
The single structural constraint that limits how fast the Middle Corridor can grow is the Caspian Sea crossing itself. Every tonne of cargo moving between Kazakhstan and Azerbaijan has to cross by ferry through the ports of Aktau or Kuryk, and ferry and port capacity has not grown as fast as demand. Policy analysis from the Carnegie Endowment for International Peace notes that, even after its recent growth, the corridor still handles roughly 6 percent of the volume the Russian northern route can carry, and the Caspian Sea's water level has dropped by an estimated 30 centimeters a year since 2020, a trend linked to damming on the Volga River and broader climate change. This has already reduced rail ferry transport capacity by around 22 percent and wagon transport by around 10 percent on some key Caspian routes, because ships now have to carry less cargo to maintain a safe draft.
On the rail side, the Baku-Tbilisi-Kars line linking Azerbaijan, Georgia, and Turkey has also strained under the added volume; reporting has described weekly traffic increases of around 35 percent alongside multi-kilometer queues at some border crossings. Georgia's planned deep-sea port at Anaklia, seen by the World Bank as a priority for the corridor's long-term capacity, has had its funding cut rather than expanded, leaving the existing Black Sea ports at Poti and Batumi to absorb growth they were not designed to handle.
How Long Does the Route Actually Take
Marketing material for the corridor often cites a 15-day transit from China to Europe. Independent reporting is more cautious: realistic transit times for the full route run roughly 15 to 25 days under normal conditions, and three to five weeks when the Caspian ferry queue or border dwell times run long. This is consistent with what Dealti Logistics sees on the western end of the same corridor: on the Turkey to Central Asia leg that crosses the Caspian by ferry, our own Turkey to Central Asia road routes typically run 25 to 29 days end to end, in the same realistic range the wider corridor reports once the sea crossing is accounted for. Shippers who plan around the marketed 15-day figure, rather than the range that includes queue and dwell time, are the ones most often caught out.
What This Means for Road Freight Between Turkey and Central Asia
Dealti Logistics does not operate the rail or sea legs of the Middle Corridor; our role sits on the road side, covering the leg from Turkey through Georgia and Azerbaijan to the Caspian ferry terminal, and the customs coordination that keeps a truck moving at each border. As Middle Corridor volumes grow, the same border posts, transit documents, and customs procedures a container uses are the ones a truck uses on the road leg. Choosing the correct transit document (TIR Carnet or T1, depending on which countries the truck actually crosses) and coordinating it with the customs declaration and CMR consignment note matters more, not less, as the corridor gets busier and border queues get longer. A shipment routed through a transit country with the wrong document on file is exactly the kind of delay that turns a 25-day plan into a 35-day one.
Will It Replace the Russian Route?
Not in the near term. Even with 60 to 70 percent annual growth, the Middle Corridor's 2024 volume of roughly 4 to 5 million tonnes remains a fraction of the Russian northern route's established 100 million tonne annual capacity, and the Caspian Sea crossing is a physical bottleneck that cannot be solved by investment alone. What has changed is that the Middle Corridor is now a serious, actively growing alternative rather than a marginal one. Turkey's position at its western end, already served by Dealti's existing road network into Georgia, Azerbaijan, and onward to Central Asia, sits directly on the route Europe is now investing billions of euros to strengthen.
For a shipment on this corridor today, planning around realistic transit windows and the correct transit paperwork matters more than the headline growth numbers. You can discuss routing and timelines for a specific shipment through our get a quote page.
Sources
- Council of the European Union, First EU-Central Asia Summit (4 April 2025), on the €12 billion Global Gateway package and the corridor's distance advantage over the northern route.
- Caspian News and Caspian Post, 2024-2025 reporting on Trans-Caspian International Transport Route cargo and container volumes.
- Carnegie Endowment for International Peace, analysis of Middle Corridor capacity constraints, Caspian Sea water levels, and comparison with the Russian northern route (April 2026).
- Oxford Business Group and EY Kazakhstan, overviews of the Trans-Caspian International Transport Route's infrastructure and growth drivers.
Corridor volumes, capacity figures, and infrastructure timelines change quickly and are reported differently by different sources; the figures above reflect publicly available reporting as of September 2026 and are not a substitute for current routing advice on a specific shipment.
