Keywords LONDON AND NORTH EASTERN RAILWAY RAILWAYS, SIGNALLING, COMMUNICATIONS, TRACK, CIRCUITS, EXTENSIONS, CONTROL, INTERLOCKING, AUTOMATIC, TRAINS, APPROACHES, LIGHTING, COLOURS, LIGHTS, SIGNALS, REMOTE, OPERATIONS, TRAFFIC, SYSTEMS, AUTOMATIC, SWITCHING, TELEPRINTERS, NETWORKS, CABLING, CARRIERS, TELEPHONY, TRAINING, STAFF, DEVELOPMENT, TRAFFIC... Show All
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Amanda Tattersall (1943) studied this question.
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