1. Purpose ………………………………………………………………………………………………….. 3
2. General …………………………………………………………………………………………………… 3
3. Authorisation …………………………………………………………………………………………… 4
4. Protection Officer ……………………………………………………………………………………… 5
4.1. Request for Absolute Signal Blocking from Worker Other Than the
Protection Officer …………………………………………………………………………….. 5
4.2. Change of Train Controller ………………………………………………………………… 6
5. Obtaining Approval for Absolute Signal Blocking ………………………………………….. 6
6. Protection ……………………………………………………………………………………………….. 7
6.1. Protecting Signal ……………………………………………………………………………… 7
6.2. Train Controller ……………………………………………………………………………….. 7
6.3. Temporary Removal of Blocking Facilities …………………………………………… 8
6.4. Adjacent Line ………………………………………………………………………………….. 8
7. Communications with Train Control ……………………………………………………………. 8
8. Ending Absolute Signal Blocking ………………………………………………………………… 9
9. Keeping Records ……………………………………………………………………………………… 9
10. Reference ……………………………………………………………………………………………….. 9
11. Effective Date ………………………………………………………………………………………….. 9