. "Signal"@en . . . "stable" . . . . "1.2.1.0.8" . "2022-10-27"^^ . "2021-04-01"^^ . "A railway signal is an installation next to the railway track for signalling the maximum allowed speed in the next block section to the train driver.\nDefinition RSM: Apparatus by means of which a conventional visual or acoustic indication is given, generally concerning the movements of railway vehicles."@en .