[citation needed] In 1941, the railway line was also extended southwards to Astara, Azerbaijan at the southern border with Iran.

[citation needed] In freight traffic, the exportation of oil from the oil wells from Baku at the Caspian Sea to the Georgian port of Batumi at the Black Sea forms an important share of the rail transport in Azerbaijan: The freight market share of the Azerbaijan State Railway was 21% in 1999.

An agreement for the supply of five Kiss double-deck electric multiple-units was signed by Stadler Rail CEO Peter Spuhler and Javid Gurbanov, Chairman of national railway ADY, at the TransCaspian 2015 trade fair in Baku on May 13.

[6] National railway ADY has placed a €300 million order for 50 Alstom KZ8A twin-section 25 kV AC electric freight locomotives.

Also, September 7, 2015, Alstom has begun developing the components for AZ8A freight electric locomotives, intended for supply to Azerbaijan.

Currently, ADY trains operate on these routes: The North-South transport corridor is designed to deliver cargo from India and the Iranian Gulf region to Russia, Western Europe, the Baltic States and the Scandinavian countries.

[citation needed] The agreement on the establishment of the North-South international transport corridor was signed between the governments of Russia, Iran and India on September 12, 2000.

[citation needed] The Middle Corridor, or Trans-Caspian International Transport Route (TITR), serves to increase freight traffic from China to Turkey, as well as to the European Union, and vice versa.

[citation needed] Trains running on this corridor deliver goods from China to Europe in an average of 10-12 days.

"[citation needed] A five-party agreement between Afghanistan-Turkmenistan-Azerbaijan-Georgia-Turkey on transit and transport cooperation on the Lapis-Lazuli route was signed on November 15, 2017 in Ashgabat.

The document envisages the modernization of the transport infrastructure of the participating countries (road, rail and sea), as well as the simplification of customs clearance procedures.

The agreement facilitates the uninterrupted transportation of goods through the territory of the Contracting Parties, simplifies issues and procedures related to the transit of traffic, and ensures the safety of vehicles, cargo and passengers.