The PPO must:
be responsible for the Protection of Workers from Rail Traffic;
make sure that the limits of the LPA are protected against the entry and exit of
Unauthorised Rail Traffic;
in single line territory, arrange for the Half Pilot Keys to be removed from both ends
of the affected Section;
make sure that each Worksite under the LPA has a PO while work is being
performed;
establish Effective Communication with POs;
make sure POs keep the Tracks between Worksites and protecting Locations Clear
of obstructions;
coordinate the Protection of all Worksites within the limits of the LPA; and
make sure that work in the Danger Zone does not begin before the required safety
measures are in place.