The Train Controller may apply ASB to allow station staff to access the Track or
Vehicles to directly cross the Track.
The Train Controller must:
confirm the Location and the work to be done;
make sure the Route is Clear between the Protecting Signals and the proposed
Worksite, and that any Rail Traffic that has passed the Worksite will not return;
set the Protecting Signals at Stop and apply Blocking Facilities; and/or
where the Signal has more than one Route available apply Blocking Facilities to
protect all entry points to the Worksite;
advise the Worker of the arrangements and Authorise the work; and
when told that the area is Clear, remove Blocking Facilities.