Honeywell says greater airspace optimisation and digital Air Traffic Management (ATM) integration will play a critical role in reducing aviation emissions and supporting Europe’s long-term sustainability objectives.

In a technical overview examining the future of European aviation, Stéphane Marché of Honeywell outlined the growing importance of collaborative ATM modernisation initiatives under the SESAR Joint Undertaking framework.

According to Honeywell, aviation continues to face three major long-term structural challenges: environmental sustainability, airspace optimisation through digitisation, and the integration of new entrants such as unmanned aerial systems and urban air mobility platforms.

FLIGHT PATH OPTIMISATION COULD REDUCE EMISSIONS

Honeywell noted that one of the most immediate operational opportunities for emissions reduction lies in flight path optimisation and smarter ATM coordination. The company cited estimates suggesting that advanced ATM measures could reduce emissions by up to 11 per cent through more efficient taxiing procedures and optimised flight profiles.

The article emphasised that modern Flight Management Systems (FMS) have long been capable of calculating efficient flight trajectories, but operational constraints within congested airspace frequently prevent aircraft from flying these optimal profiles.

Honeywell stated that uncertainty surrounding aircraft positioning, weather, traffic density, fuel loads and operational variability forces Air Traffic Control (ATC) systems to apply wider separation margins, reducing overall airspace efficiency and increasing fuel burn.

SESAR PROGRAMME FOCUSED ON DIGITAL AIRSPACE MODERNISATION

The company highlighted the role of the SESAR programme in developing a more integrated and digitally connected European ATM environment. The SESAR initiative forms part of the broader European Union Single European Sky programme aimed at modernising European airspace infrastructure.

Honeywell said its engineering and advanced technology teams in the Czech Republic and France have contributed to multiple SESAR projects focused on sustainability, ATM optimisation and future airspace integration.

The article also referenced the SESAR-funded ADSENSIO demonstration programme, which is evaluating the use of datalink communications between aircraft and ground systems to exchange four-dimensional trajectory data. Honeywell said the objective is to reduce uncertainty around aircraft positioning and enable more precise and fuel-efficient routing.

AVIATION REMAINS CENTRAL TO EUROPE’S CLIMATE TARGETS

Honeywell linked these developments to Europe’s broader climate objectives under the European Green Deal, which targets climate neutrality by 2050.

The company noted that while aviation fuel efficiency improved significantly between 2005 and 2017, continued growth in passenger traffic has offset many of those gains.

According to the article, the future European airspace environment will become increasingly congested and operationally complex, reinforcing the need for collaborative ATM modernisation and digital trajectory management technologies.

SESAR BACKGROUND

The SESAR programme was launched in 2004 as the technical pillar of the Single European Sky initiative. The SESAR Joint Undertaking was subsequently established in 2007 as a public-private partnership responsible for coordinating European ATM research and infrastructure modernisation efforts.