[ noun ] a railroad employee in charge of signals and point in a railroad yard <noun.person>
Signalman \Sig"nal*man\, n.; pl. {-men}. A man whose business is to manage or display signals; especially, one employed in setting the signals by which railroad trains are run or warned.
The conductor, riding in the lead locomotive, was killed and two engineers and a signalman were injured.
"At first, yes," said the retired real estate agent and former Hood signalman.
They need a signalman to pull a lever to change the signal. A further 165 are panel boxes introduced in the 1960s.