ATMACA-SESAR project is advancing the future of air–ground communications, aiming to modernise how aircraft and ground systems exchange information across all phases of flight. By developing a more flexible, resilient, and interoperable communication framework, the project supports the transition towards a fully digital and service-oriented air traffic management (ATM) system.
ATMACA is now entering a key validation phase, marking an important step towards demonstrating the operational benefits of its innovations. At the heart of the project is the implementation of an IP-based aeronautical telecommunication network using internet protocol suite (ATN/IPS), designed to enable seamless data exchange between air and ground systems. The project brings together several core components, including data link context management (DLCM), controller–pilot data link communications (CPDLC), green route operations (GRO), and advanced human–machine interfaces (HMIs).
A central innovation is the “flight session” concept, which ensures continuous communication and contextual data exchange throughout the entire flight. This approach supports smoother transitions between air traffic control centres and enhances operational continuity.
Recent results highlight strong technical and operational progress. Simulations show that the GRO application can significantly improve trajectory optimisation by integrating real-time weather data, while protocol validation activities confirm high datalink performance, with CPDLC success rates reaching up to 98%.
In parallel, the project has developed human-centred HMI environments for both air traffic controllers and pilots. Early usability assessments indicate positive feedback, particularly in terms of clarity, structured communication, and overall operational usability.
With its exploratory research plan now in place, ATMACA is progressing towards advanced simulations, human-in-the-loop validation, and a planned flight trial. These activities will further demonstrate the maturity of the solutions and support their potential integration into the future SESAR ATM system.
For more details, visit the ATMACA project page on the SESAR Joint Undertaking website.
