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Keywords: COLOURS
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Journal Articles
Journal Articles
The Institution of Civil Engineers Engineering Division Papers (1945) 3 (8): 1–26.
Published: 01 January 1945
...F H D PAGE © Thomas Telford and ICE 1945 GREAT WESTERN RAILWAY GWR RAILWAYS SIGNALLING TIME SPACE MANUAL DISTANCE INTERLOCKING TRACK CIRCUITS COLOURS LIGHTS OVERLAPPING ELECTRICAL TRAINS STAFF LOCKS BLOCKS MECHANICAL PREVENTION COLLISIONS TELEGRAPHS SAFETY...
Journal Articles
The Institution of Civil Engineers Engineering Division Papers (1943) 1 (9): 1–21.
Published: 01 January 1943
...A E TATTERSALL © Thomas Telford and ICE 1943 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...

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