• SJU reference # PJ.18-02b /Release 9
  • Stakeholders
  • Benefits Cost-efficiency
  • Status In the pipeline

Today each ANSP relies on data contained in their respective systems to predict aircraft trajectory for their portion of airspace, with no synchronised view of the trajectory nor the factors that may constrain it. This is where SESAR’s IOP or initial ground-ground interoperability comes in. The candidate solution allows controllers to conduct silent coordination between adjacent units. In this way, all concerned air traffic control units hold a consistent view of the flight at all times, which supports seamless cross-border operations, including cross-border free route operations.

Through continuous exchange of up-to-date and consistent trajectory information between all units, the solution enables more efficient operations, from tactical planning and complexity management, to early conflict detection and arrival management. Work is ongoing in SESAR to validate and update the EUROCAE’s ED-133 flight object interoperability specification, the standard behind ground-ground interoperability (IOP), which defines the system-to-system interfaces between different flight data processing systems (FDPS). It will allow truly seamless navigation across ANSP borders in Europe, allowing controllers to coordinate with their counterparts in neighbouring ACCs in the same way as they would with colleagues seated next to them. 

SJU references: #PJ.18-02b / Release 9


  • Increased cost efficiency
  • Enhanced security
  • Enhanced safety
  • Enhanced predictability
  • Reduced fuel consumption and emissions