A system in which all PointsItems of permanent way which may be aligned to one of two positions, Normal or Reverse, according to the direction of train movement required. More in a RouteThe path along a section of track between one Signal and the next, along which an authorised movement is to be made. More are set to the required positions, and
the SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More at the entrance to the routeThe path along a section of track between one Signal and the next, along which an authorised movement is to be made. More Cleared by the operation of one or
two control functions.