The distance beyondIn relation to equipment on or alongside the track, positioned such that a train reaches it after passing another defined item of equipment. See also Advance. a Stop SignalAny Signal capable of showing a Danger Aspect. that must be clearA Colour Light Signal that is displaying a Proceed Aspect or a Semaphore Signal in the Off position., and where
necessary LockedThe state of any Signalling Function or item of equipment when it is conditionally or unconditionally prevented from changing state or position by other parts o..., before the Stop SignalAny Signal capable of showing a Danger Aspect. preceding the Stop SignalAny Signal capable of showing a Danger Aspect. in
question can display a Proceed AspectAny Signal Aspect which permits the driver to pass the Signal..