NR NR/L3/OPS/045/3.31 ISSUE 1 PDF

This procedure covers all permissive platform signalled moves including:

• contingency arrangements;

• attaching and detaching to / from passenger trains (including where one portion is Empty Coaching Stock (ECS));

• platform sharing;

• terminal stations;

• Permissive Platform (PP);

• Permissive Platform Contingency purposes (PP-C);

• Permissive Platform Attaching / Detaching movements (PP-A);

During significant service disruption permissive platform working would allow:

• increased line capacity, e.g. by attaching two trains together;

• passengers to make alternative travel arrangements;

• passengers to use the station’s facilities;

• clearance of heavily delayed trains to be expedited;

• Reduce the risk of passengers self-evacuating.

This procedure does not cover:

• permissive non passenger train movements;

• attaching / detaching to / from ECS trains (shunting with the authority of a ground position signal);

• locomotives either changing ends or being changed; assistance to failed trains.

PURPOSE

This procedure defines the requirements for signalling two trains when the second is signalled onto a running line which is already occupied.

The procedure:

a) controls the risk so far as reasonably practicable of train collisions when signalled in accordance with the permissive working arrangements; and

b) allows permissive working to be conducted in a safe manner and with an assessment of all the factors that might affect a driver’s ability to perform this manoeuvre satisfactorily.