Automatic Level Crossing

A Level Crossing which is operated by approaching trains and not Interlocked with protecting Signals. Road Traffic Signals (or Red/Green Stop Lights are provided). Additional pedestrian Signals may be provided at road crossings depending upon the number of pedestrian users. Half-Barriers may be provided, depending upon the type of crossing. See AHBC, ABCL, AOCL, AOCR, MSL.