A Proceed AspectAny Signal Aspect which permits the driver to pass the Signal. in a Colour Light SignalA Signal that conveys its information by coloured lights., or the arm of a Semaphore
SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. or Disc SignalA Shunting Signal or Subsidiary Signal consisting of a small disc which rotates to indicate a change of Aspect. inclined at 45 degrees or more, or Distant SignalA Signal (not itself a Stop Signal) capable of displaying a Cautionary Aspect that informs the driver of the state of the Signals or Level Crossing ahead. other
than at its most restrictive aspectAny valid visual indication of a Signal as displayed to the driver..