A SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. normally operated by the passage of trains, but which can also be
controlled by a Signal BoxThe building in which the Signaller(s) is/are situated together with the control and indication system for the signalling. See also Signalling Centre. or Ground FrameA control point containing levers or switches to permit the local operation of Points in Running Lines, Sidings and, where provided, the associated Signals. Thi.... On new projects a Controlled
SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. would be provided.