A calculated full OverlapAn Overlap of at least 180 m (or 400 m where both the Stop Signal and the preceding Caution Signal are both Semaphore Signals). More that does not correspond to a physical Track
Section joint. It is used where an overlap distance falls short of a set of
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 those 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 are not lockedThe state of any Signalling Function or item of equipment when it is conditionally or unconditionally prevented from changing state or position by other parts o... More.