Network Operations Report – March 2017

12 April 2017

Traffic in March 2017 increased by 4.5% compared to March 2016 and was in line with the baseline forecast. Traffic has shown continuous growth since November 2015. Twelve states contributed most to the European local traffici growth, with UK, Spain and Belgium/Luxembourg as the top contributors.

Total ATFM delays decreased by 31% in March 2017 compared to March 2016. En-route ATFM delays decreased by 32.1%but en-route ATFM delays were relatively high in March 2016 due to ATM system implementation and several industrial actions. Airport ATFM delays decreased by 29%.

Highlights include:


  • French ATC industrial action and ATM system issues in Lisbon ACC generated en-route ATC disruptions delays;
  • Maastricht first operational use of the new layer configuration for Brussels East sector and trial of new Voice Communication system (VCS) resulted in en-route events delays throughout the month;
  • En-route ATC capacity issues in Brest, Maastricht and Lisbon ACCs;


  • Seasonal weather impacted several airports, especially London/Heathrow and to a lesser extent Amsterdam/Schiphol, Istanbul/Atatürk and Barcelona;
  • Airport capacity delays at both Istanbul airports, work in progress at Amsterdam/Schiphol airport.

The average en-route ATFM delay per flight in NM areaii in March 2017 was 0.70 min/flt, which is above the corresponding monthly guidelineiii value of 0.24 min/flt. The average YTD en-route ATFM delay per flight in 2017 in the NM area is 0.38 min/flt which is above the corresponding guideline value of 0.22 min/flt. Half of en-route delays this year are due to disruptions, such as industrial action.

The monthly Network Operations Report overview provides a high level view of the performance of the European ATM network, whilst the analysis provides a detailed view. Download previous network performance reports.


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i Internals, international departures and arrivals, excluding overflights.
ii See notice on page 4 for more information about NM area
iii NM’s calculation that provides the guideline en-route delay (min) requirements to achieve the annual target (0.5 min/flight).

Network Manager Operational Performance team

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