A non-Token system of Single Line WorkingMethods of operation introduced so that the traffic of a double line can pass over one line (which is not Bi-Directional) because of engineering work, equipment... More usually requiring continuous
Train DetectionThe proof of the position of the Points (Normal or Reverse) to the Interlocking equipment. More through the Section. A form of Track Circuit BlockA method of working trains in a section of line where safety is ensured by the use of continuous Track Circuits or other means of automatic train absence detect... More.