As part of the revision of its infrastructure policies, the European Commission (EU) has defined nine corridors aimed at transforming road transport, rail connections, flights and transport by water into a uniform and efficient European network (Trans-European transport network of TEN-T).
These corridors are the Adriatic Baltic Sea region, the North Sea-Baltic region, the Mediterranean region, the East and East Mediterranean region, Scandinavia-Mediterranean, Rhine-Alps, Atlantic, North Sea-Mediterranean