Allows 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 to operate the Section SignalA Stop Signal controlling the entrance to a Block Section or Intermediate Block Section ahead. See also Home Signal, Starting Signal, Advanced Starting Signal. More only once, for each Line
ClearA Colour Light Signal that is displaying a Proceed Aspect or a Semaphore Signal in the Off position. More. See also One Train ReleaseThe removal of Locking on a function, for example, the removal of Route Locking or the unlocking of a function such as a Ground Frame. More.