What the Middle Corridor is
The Trans-Caspian International Transport Route — TITR, usually shortened to the Middle Corridor — is a multi-modal corridor linking China to Europe without passing through the northern route's border crossings. Instead of running the whole way on rail, the corridor reaches the Caspian Sea and crosses it by ship, then continues by rail on the far side. Because it links rail and sea, it is sometimes called the rail–sea corridor.
The route, step by step
- China to the border. Cargo loads at Xi'an, or at one of the other Chinese terminals feeding the corridor, and runs west to Khorgos on the Kazakh border.
- Border transshipment. Khorgos is a gauge-change point. Containers are transshipped or their bogies exchanged between China's standard gauge and the wider gauge used across Kazakhstan.
- Across Kazakhstan. The train runs west to the Caspian port of Aktau or Kuryk.
- The Caspian crossing. Containers transfer to a vessel for the sea leg. This is the defining feature of the corridor, and the reason its transit depends on weather and on ferry availability.
- Landing at Alat Port. On the Azerbaijani side the cargo lands at Alat Port, south of Baku.
- Rail to Baku. A short rail leg brings the cargo to Absheron station in Baku, for clearance, devanning and delivery.
- Onward to Europe. Cargo bound further west continues by rail through the Caucasus towards the Black Sea and Central and Eastern Europe.
IMAGE SLOTCaspian port infrastructure handling rail cargoassets/img/guide-middle-corridor.jpg
Why the corridor exists
Because it gives shippers a second option on the Eurasian landbridge. A corridor is only as good as its busiest chokepoint, and when the northern route slows down, the Middle Corridor absorbs demand. For destinations in Azerbaijan, Georgia and the wider Caucasus, it is also simply the shortest sensible route — there is no reason to run north and come back south.
When it beats the northern route
- Your destination is Azerbaijan, Georgia or the Caucasus. The corridor is not a detour here; it is the direct line.
- The northern route is congested. When border queues build, cargo that can route through the Caspian gains a schedule and sometimes a cost advantage.
- You value schedule stability over theoretical minimum transit. A route with several departures a month and a known transfer process can beat a nominally faster route that is unreliable.
What to plan for
Treat the Caspian crossing as a scheduled operation with its own interval, not as an instant handover. Weather, vessel loading patterns and the number of trains feeding the port all affect how quickly your container moves from rail to ship and back to rail at the other end.
- Build in the transfer days. A route plan that assumes the container steps off a train and onto a ship the same day is not a realistic plan.
- Expect two handling points. The Kazakh port and Alat Port both handle the container, so cargo that is sensitive to repeated lifting needs to be packed for it.
- Keep documentation complete. A multi-modal route has more handover points, and a missing document delays the cargo at whichever point it surfaces.
- Talk to us about your commodity. Some cargo categories need to be cleared with the platform before space is confirmed.
From Xi'an to Baku
Xi'an is the anchor of our Middle Corridor service. The Xi'an rail platform runs roughly thirty scheduled block trains a month to Baku, and WideSafe holds two chartered trains a month plus long-term agreement space, giving us a monthly capacity of around 400 TEU towards Baku. The published transit is about 25 days station to station, with the figure moving with season and cargo volume. See China to Baku rail freight for the full lane description, or Xi'an to Baku for the origin detail.
Frequently asked questions
What does TITR stand for?
Trans-Caspian International Transport Route. It is the formal name for the Middle Corridor: a combined rail and sea route from China across Kazakhstan and the Caspian Sea to Azerbaijan and onwards towards Europe.
Which ports does the Middle Corridor use?
On the Kazakh side, Aktau or Kuryk. On the Azerbaijani side, Alat Port, with a short rail leg from there to Absheron station in Baku. The sea crossing between them is the defining leg of the corridor.
Is the Middle Corridor faster than the northern route?
Not always on paper, which is why it is usually described as an alternative rather than a replacement. Its advantages are schedule resilience when the northern route is congested, and being the direct route for Azerbaijan, Georgia and the Caucasus. For Baku specifically, there is no reason to use any other route.
Why does the Middle Corridor take about 25 days to Baku?
Because it is a three-part journey: rail to Khorgos and across Kazakhstan, a sea crossing between Aktau or Kuryk and Alat Port, then rail to Absheron station. Each transfer has its own interval, and the ferry interval in particular depends on weather and vessel loading, so we quote it as approximate.
Does the Middle Corridor cross any other country en route to Europe?
Onward from Azerbaijan the corridor continues through the Caucasus towards the Black Sea and Central and Eastern Europe. We route each shipment according to the destination and the current crossing conditions, and set it out in the route plan we send you.