A Controlled Level CrossingA Level Crossing equipped with Gates or full Barriers that is Interlocked with protecting Signals. Road Traffic Signals may be provided. Additional Barriers or ... with full BarriersSingle or double Barriers, provided at Controlled Level Crossings, which extend across the whole width of a road. Barrier Skirts may be provided., operated by a Control CentreA Signal Box covering a large area, usually incorporating other operational functions.,
Signal BoxThe building in which the Signaller(s) is/are situated together with the control and indication system for the signalling. See also Signalling Centre. or Gate BoxA control point provided for the supervision of one or more Level Crossings which is not controlled directly by a Signal Box. A Gate Box is not a Block Post..