The redesign will enhance safety and efficiency, offer more direct routing and increase capacity in one of Europe’s busiest and most complex airspaces
23 January 2025 – The EUROCONTROL Maastricht Upper Area Control Centre (MUAC) and Reims Area Control Centre (ACC) today implemented a major redesign of their airspace boundary. This redesign represents a significant milestone that underscores their commitment to providing safe and efficient air navigation services in what is one of Europe’s busiest and most complex airspace areas.
The update to the Air Traffic Control (ATC) sector interface between both centres is particularly significant as the new boundary aligns with the flow of traffic, rather than rigidly tracing national borders. This allows for a more direct routing as well as a reduction in complexity and air traffic controller workload and will ultimately result in an increase in ATC capacity.
As the only cross-border, civil-military air navigation service provider in Europe, we are an example of the efficiencies that can be gained when airspace boundaries align with traffic flows rather than national borders. This project serves as an example of bilateral collaboration for the benefit of the overall network.
Peggy Devestel Director of the EUROCONTROL Maastricht Upper Area Control Centre
In addition, the associated improved routings and enhanced flight profiles will enable airlines to plan shorter, more direct routes through the airspace block. This, in turn, has the potential to deliver environmental benefits as less fuel is consumed and associated emissions are reduced.
This upper airspace design is the result of several years of work. By optimizing our interface with MUAC, Reims ACC will be able to improve the operational and environmental performance of flights for the benefit of the whole European network. A new stage in our commitment to modernization which reinforces the key role of Reims ACC!
Estelle Le Guilcher Head of Reims ACC DSNA
The major boundary redesign has been delivered as part of the Central High Project, which is an on-going FABEC project chaired by MUAC, to improve sector interfaces between surrounding air traffic control centres.
“The delivery of this project was only possible due to the close and productive collaboration with the DSNA, the French Air Navigation Service Provider and I would like to thank them as well as skeyes, the Civil Aviation Authorities and all other partners who were involved for their contribution,” said Peggy Devestel.
Further packages will be delivered in the future, with the ultimate aim of improving the flow of traffic through and increasing capacity in MUAC and its neighbouring airspace.
As part of the CENTRAL HIGH project, the ATC upper sectors at the interface between MUAC and Reims ACC are designed independently of national borders (see the map on the right).

Current map – © EUROCONTROL

Updated map – © EUROCONTROL