Britain's Last Mechanical Signalling : Salute to the Semaphore

Mechanical signaling has been on the way out since color signaling was introduced in the 1920s. It was originally intended to replace all mechanical signaling by the millennium, however, numerous outposts remain on the national network. Network Rail aims to eliminate the last of its mechanical signaling and move control to a dozen railway operating centers, but its pace is limited by the cost. This book looks at the last mechanical signaling on the British railway network. [Publisher's text].

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