The lattice (metal or plastic) attached to the barrier boomAlternative term for Barrier. More at some full barrier crossings, designed to reach the floor when the barriers are in the ‘Down’ position. It enables the railway to be fenced off when using full barriersSingle or double Barriers, provided at Controlled Level Crossings, which extend across the whole width of a road. Barrier Skirts may be provided. More.