Click below to consult the terms in the lexicon.


Werk Aansluiting Raccordement Travaux. System placed on existing tracks for the railway connection to a work zone.

Welded-in switches

Switches that are welded into the rails so as to avoid joints.

Wildlife passage

Place where animals can safely cross the railway.

Wood preservation

Treating wood with chemicals to extend its life span.

Wood-fibre concrete

Type of concrete that contains wood fibres. This concrete has noise-absorbing properties.


Place where railway infrastructure is produced, repaired and maintained.