- sighting distance of signal
- расстояние видимости сигнала
Англо-русский железнодорожный словарь. 2013.
sighting distance of signal
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Railway semaphore signal — One of the earliest forms of fixed railway signal is the semaphore. These signals display their different indications to train drivers by changing the angle of inclination of a pivoted arm . Semaphore signals were patented in the early 1840s by… … Wikipedia
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British railway signals — Modern British signalling is based on a two, three and four aspect colour light system using non permissive block rules. It is a basic progression of the original semaphore signalling that can still be found on many secondary lines. Colour light… … Wikipedia
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