relay room

English

Noun

relay room (plural relay rooms)

  1. (rail transport) A room in a railway signalling installation where relays for operating signals and points or switches are housed.
    • 1959 July, “Temple Mills Marshalling Yard”, in Railway Magazine, page 492:
      The hump cabin and its relay room are at the summit of the hump on the right-hand side, and the control tower is on the centre line of the yard between the primary and secondary retarders.
    • 2026 January 21, Richard Wilcock, “Network Rail completes £200 million West Coast Main Line upgrades”, in RAIL, number 1053, page 10:
      It also installed new control panels at Kingmoor Signal Box and a new operating system in the relay room.
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