Opening and closing signal boxes

Question 1

Opening signal box

Answer 1

When you are to open a signal box, you must find out if the adjacent signal boxes are open and tell the signallers there that your signal box is open.

Question 2

Closing signal box (3)

Answer 2

1. make sure there are no more train movements required
2. make sure that all controlled signals in your area of control are at danger
3. tell the signallers in the adjacent signal boxes that your signal box is closed.