Two Centuries of Railway Signalling

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"First published in 1998, with a new edition in 2008, this revised second edition will be warmly welcomed by all enthusiasts. This authoritative book gives a detailed history of the development of railway signalling, from the earliest days through the introduction of the disc and crossbar signal, to semaphores and colour lights and all the modern communications systems of today. An extra chapter brings the story up to date to include proposed changes to the railway signalling infrastructure in use in Britain today, particularly the development of signalling control centres dependent on modular signalling and the European Rail Traffic Management System (ERTMS), which will eventually replace the traditional signalling on Britain's railway network. Compiled by two highly regarded railway authors who have had a life-long interest in signalling and the safe operation of railways, this impressive volume should be in the library of all serious railway enthusiasts."--Amazon website