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NR/L3/OPS/045/3.31

National Operating Procedure (NOP) 3.31: Permissive Platform Working

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Organization: NR
Publication Date: 2 September 2017
Status: active
Page Count: 7
scope:

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.

Document History

National Operating Procedure (NOP) 3.31: Permissive Working
This procedure covers all non-passenger permissive signalled moves and all permissive platform signalled moves including: • Goods Lines / Loops; • Reception / Arrival Lines (Network Rail...
September 4, 2021
National Operating Procedure (NOP) 3.31: Permissive Working - This standard should only be used for reference to ensure 'The Control of Risk' until the compliance date of its replacement standard is reached, upon which this standard will be withdrawn. The development of all new processes and procedures should be to the replacement standard
This procedure covers all non-passenger permissive signaled moves and all permissive platform signalled moves including: •  Goods Lines /Loops; •  Reception /Arrival Lines (Network Rail...
NR/L3/OPS/045/3.31
September 2, 2017
National Operating Procedure (NOP) 3.31: Permissive Platform Working
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...

References

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