Click below to consult the terms in the lexicon.


Transmission Beacon Locomotive. An automatic train control system based on the transmission of a coded signal from a trackside beacon to an aerial located underneath the locomotive.

Traction sub-station

Electricity transformation and distribution unit providing power via the catenary to a given section of electrified line.

Traffic Control

National control centre for coordination of train traffic.

Train path

Railway network capacity allocated to a specific train, equivalent to a 'slot' in aviation.