Meaning of relay room | Babel Free

Definitions

A room in a railway signalling installation where relays for operating signals and points or switches are housed.

Examples

“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.”

“It also installed new control panels at Kingmoor Signal Box and a new operating system in the relay room.”

CEFR level