pilotman

From pilot +‎ -man

pilotman (plural pilotmen)

1. (rail transport, Britain) A railway employee who directs operations over a section of railway line temporarily reduced to single track, e.g. during maintenance work.
   • 1963 September, “Change of single-line rules”, in Modern Railways, page 147:

     These points will be padlocked, a green hand-signal will be shown and the keys handed to the pilotman, who will be expected to make a periodical examination of the points to see that they are secure and that the hand-signal is still properly displayed.

• “pilotman” in Lexico, Dictionary.com; Oxford University Press.