Headcodes

Headcodes are an indication of an engine or train's importance by means of a position of lamps shown on the front of an engine, or white discs during the day. The headcode system allows the signalmen to identify and regulate trains and determine their routes. Engines on the North Western Railway have been seen wearing lamp and disc codes on many occasions in the Railway Series. According to the Surprise Packet, the North Western Railway has its own headcodes.