European Network Operations Plan 2018-2019/22

Transition Plan for Major Projects in Europe Winter 2018/2019

The Transition Plan describes the processes, the activities, the plans and measures that will be applied by the Network Manager and the operational stakeholders, to minimise the impact on the network performance caused by major airspace or ATM system improvement projects.

The Transition Plan is a living document, which forms part of the European Network Operations Plan (NOP).

The Transition Plan deals only with scheduled, planned, special events undertaken and managed by ANS, or ANS related entities, e.g. operational stakeholders that could lead to a temporary reduction of capacity and that may require mitigation measures agreed in a partnership approach at Network level. Examples of such events are: implementation of a new ATM system, move to a new ACC Ops room, major airspace reorganisation including change to the ACC area of responsibility, opening of a new airport, etc.


In response to the Commission Regulation (EU) No 677/2011 of 7 July 2011, amended by the Implementing Regulation (EU) No 970/2014 of 12 September 2014, (laying down the detailed rules for the implementation of air traffic management (ATM) network functions), and Commission Implementing Regulation (EU) No 390/2013, the Network Manager helps to ensure the achievement of European Union-wide performance targets during the implementation of system / airspace transition projects.

The Regulation 677/2011 requires the NM to include in the NOP the following elements relevant to the planning of major projects:

  • A network forecast taking into account special events impact;
  • A description of plans and actions at local and network level;
  • An overview of special events with significant ATM impact;
  • A description of individual special events and their handling from a network perspective;
  • A consolidated forecast and analysis of the operational performance of the network, including the impact of special events.


Network Operations Transition Plan for Major Projects in Europe Winter 2018/2019