A switch or button located in the 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. that enables the SignallerA person responsible for the operation of the Signalling System, to safely control the passage and regulation of trains, usually located in a Signal Box. to
replace an Automatic SignalA Signal controlled by the passage of trains. It does not require any action by the Signaller or ARS. Automatic Signals are usually Passable. to DangerAn indication given by a Signal to stop. in an emergency. The SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. is not
provedEvidence provided by electrical or other means that a function is in a specified state. to be replaced. See also Replacement SwitchA switch or button located in the Signal Box that enables the Signaller to replace an Automatic Signal to Danger. The Signal is proved to be at red and alight. ... and Emergency
Signals On Control.