A SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More which is able to be passed at DangerAn indication given by a Signal to stop. More without specific authority
from 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. More, in accordance with the rule book. PassableA Signal which is able to be passed at Danger without specific authority from the Signaller, in accordance with the rule book. Passable Signals are usually Auto... More Signals are
usually Automatic, Semi-Automatic or Intermediate Block Signals.