Briefly explained: The codification system in combined transport

In combined transport, the upper sections of Intermodal Loading Units (ILUs), i.e. containers, swap bodies, semi-trailers, may exceed the standard loading gauge in most European countries when the units are loaded on intermodal wagons or bogies. Their carriage must therefore be covered by the procedure for exceptional consignments set out in UIC Leaflet 502-1. This procedure is cumbersome in that it requires the railway undertakings (RU) to obtain specific authorisation prior to operation from all the infrastructure managers (IM) involved in the transport on their networks. In order to facilitate and speed up the carriage of ILUs in a reliable and safe manner, a codification system according to IRS 50596-6 was established by UIC in collaboration with UIRR. This system, which has been applied by RUs and IMs for several decades, is based on a standardised system of codes for lines, wagons and ILUs.

Eric Feyen, Technical Director, UIRR s.c