The following definitions are given by the United Nations Economic Commission for Europe: Combined transport is intermodal transport where the major part of the European journey is by rail, inland waterways or sea and any initial and/or final legs carried out by road are as short as possible.
The Railway Companies offer two types of intermodal transport :
- Accompanied transport, also known as "rolling road".
- Unaccompanied transport, changing from one mode of transport to another using a purpose-built terminal (road, maritime, waterway, rail, air).
Intermodal transport The movement of goods in one and the same loading unit or road vehicle, which uses successively two or more modes of transport without handling the goods themselves in changing modes. By extension, the term intermodality has been used to describe a system of transport whereby two or more modes of transport are used to transport the same loading unit or truck in an integrated manner, without loading or unloading, in a door to door transport chain.