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. 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. for one train for each Line
ClearA Colour Light Signal that is displaying a Proceed Aspect or a Semaphore Signal in the Off position.. See also One Pull.