Track Circuit Showing Occupied When Clear

Question 1

If a track circuit is on a double line , you may allow the driver of each train to pass over it if one of the following applies (4)

Answer 1

1. You can make sure the portion of the line concerned is clear after the passage of each train.
2. A competent person has been appointed to report the train has passed complete with tail lamp.
3. You have seen the train occupy and clear the track circuit ahead of the signal beyond the affected portion of line.
4. If the track circuit is between two signal boxes, you have introduced signal by Bell or telephone

Question 2

If a track circuit is showing occupied on a bidirectional line, the Signallers options are (2)

Answer 2

1. If train pass over bi-directional line in one direction only, they may treat the track circuit showing occupied as if it were on a double line
2. If trains are to pass over the track circuit in both directions, they must apply the regulations for working single and bi-directional line by pilot.