The Trans-Caspian International Transport Route (TITR) runs through China, Kazakhstan, the Caspian Sea, Azerbaijan, Georgia, Turkey and further through the Black Sea to Europe. The TITR is a multimodal route that involves two modes of transport: rail and sea.

Environmental agenda permeates all spheres of human activity, and rail transport is no exception. In an effort to defend its position, railway transport is adapting to changes, where environmental friendliness and sustainable development are increasingly important