1. Purpose ………………………………………………………………………………………………….. 3
2. General …………………………………………………………………………………………………… 3
3. Safeworking System …………………………………………………………………………………. 4
3.1. Absolute Block System …………………………………………………………………….. 4
3.2. Permissive Block Working …………………………………………………………………. 4
3.3. Double Line Working ………………………………………………………………………… 4
3.4. Single Line Working …………………………………………………………………………. 4
4. Work on Track Authorities – For Work That Obstructs the Track or Affects Track
Geometry ………………………………………………………………………………………………… 5
4.1. Local Possession Authority ……………………………………………………………….. 5
4.2. Track Occupancy Authority ……………………………………………………………….. 5
5. Work Methods – For Work That Does Not Affect Infrastructure Integrity ………….. 5
5.1. Absolute Signal Blocking …………………………………………………………………… 5
5.2. Lookout Working ……………………………………………………………………………… 6
6. Accessing the Rail Corridor for Work ………………………………………………………….. 6
6.1. Entering the Rail Corridor for Work …………………………………………………….. 6
7. Reference ……………………………………………………………………………………………….. 6
8. Effective Date ………………………………………………………………………………………….. 6