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signal checks
plural of signal check
signal bridge
(rail transport, US) A structure built over railroad tracks on which signals are mounted. / (nautical) An open platform by the navigating bridge of a warship for the use of signalmen.
signal bridges
plural of signal bridge
signal check
(rail transport) An instance where a train must stop at a red signal, or slow down before passing a signal displaying a yellow aspect.
Signal Hill
signal lads
plural of signal lad
signal lad
(rail transport, UK) A young man employed in a signalbox to record the times of trains as they pass through the area served by the signalbox.
cab signal
(rail transport) A device in the cab of a locomotive or train which displays the status of signals along the track.
somersault signal
(rail transport) A semaphore railway signal that is pivoted in the centre of its arm.
signal fires
plural of signal fire