The minimum distance from 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 and Crossings at which Track SectionA portion of railway track having fixed boundaries and for which the Train Detection System provides information on its state of occupancy to the Signalling Sys... More
boundaries must be positioned, to prove that a vehicle on one track is in a
position clearA Colour Light Signal that is displaying a Proceed Aspect or a Semaphore Signal in the Off position. More of a movement on the other.