Incorporated in a sign provided on the Approach ToIn relation to equipment on or alongside the track, positioned such that a train passes the point before reaching another defined item of equipment. See also Re... certain Automatic Level
Crossings to inform the driver to regulate the speed of his train in order to
observe the restriction of speed which applies from the subsequent Special
Speed Restriction Board. Also referred to as a Level Crossing Warning SignAlternative term for an Advance Warning Board..