Network Operations Report – August 2017

15 September 2017

Traffic in August 2017 increased by 5.0% compared to August 2016 and was above the high forecast. Traffic has shown continuous growth since November 2015. Thirteen states added each more than 50 daily flights to the network with Turkey, Spain and Germany as the top contributors.

Total ATFM delays increased by 43.6% in August 2017 compared to August 2016. En-route ATFM delays increased by 63% mainly due to  weather; airport ATFM delays increased by 16.9%.

Highlights include:

Hamburg became the 25th airport to fully implement A-CDM on 16 August.


  • Weather impacted operations in Karlsruhe, Maastricht and Vienna ACCs;
  • There were relatively high delays at Marseille due to ATC capacity and Karlsruhe due ATC staffing.


  • There were capacity issues at both Istanbul airports, London/Gatwick and Amsterdam/Schiphol airports;
  • Seasonal weather impacted Amsterdam/Schiphol and London/Heathrow airports.

The average en-route ATFM delay per flight in the NM areai in August was 1.47 min/flt, which is above the corresponding monthly guidelineii value of 0.76 min/flt. The average YTD en-route ATFM delay per flight in 2017 in the NM areai is 0.96 min/flt, which is above the corresponding guideline value of 0.56 min/flt.

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 See Notice on page 4 for more information on NM Area .
ii 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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