The PTA Section from Armadale Station to Mundijong Junction is controlled by the Arc
Southwest Train Controller.
For Rail Traffic to depart Armadale Station towards Mundijong Junction, the Arc Train
Controller must give the PTA Train Controller the slot on Signal 2R (the PTA refers to
Signal 477).
For Rail Traffic to enter the Mundijong Junction to Armadale Section, the Arc Train
Controller sets the Route and advises the PTA Train Controller.