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Browse the A-Z below for some rail-specific terms that are used in this website, together with their meanings.
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Level 2 exceedenceA discrete fault in the alignment, level or gauge of the track, which requires corrective action within defined timescales.
Level crossing failureAn incident where a level crossing has developed a fault sufficiently serious for its effective and safe operation to be compromised.
Light maintenance services“Light maintenance services” are defined in section 82(2) of the Railways Act 1993 as services of any of the following descriptions:
(a) the refuelling, or the cleaning of the exterior, of locomotives or other rolling stock;
(b) the carrying out to locomotives or other rolling stock of maintenance work of a kind which is normally carried out at regular intervals of twelve months or less to prepare the locomotives or other rolling stock for service.
Lineside structure defectAn incident where a lineside structure has developed a fault affecting its effective operation or the operation of the railway. Such structures include signal gantries and fences.
LMDLight maintenance depot (for locomotives and rolling stock). This is any land or other property which is normally used for or in connection with the provision of light maintenance services, whether or not it is also used for other purposes.
LocomotiveSection 83(1) of the Railways Act 1993 defines “locomotive” as follows:
“any railway vehicle which has the capacity for self-propulsion (whether or not the power by which it operates is derived from a source external to the vehicle)”.