A secondman or '''driver's assistant''' is a railway employee who assists the driver of a train.
A secondman or '''driver's assistant' is a railway employee who assists the driver of a train.
== Background == Historically, due to the pervasive use of steam traction, locomotives were always crewed by at least two people: a driver and a fireman. The driver handled the driving controls, whereas the fireman was responsible for tending to the fire and ensuring that the appropriate boiler pressure was maintained.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).