Overcoming uncertainty with predictability
A key challenge in the ATM environment is uncertainty, Ekkehard states: “Uncertainties encompass a wide range of challenges, including severe weather – which remains a top, uncontrollable threat – as well as unprecedented global events, conflict zones, ATC, maintenance, short staffing, and logistical delays.”
These factors may lead to operational disruptions, delays, inefficiencies, and financial losses. Reduced operational efficiency may also result in system-wide disruption, such as unnecessary fuel consumption and a reduced, often under-declared, sector capacity.

Ekkehard’s wealth of experience in flight dispatch, planning and ATM across multiple organisations lends key insights into the role of predictability in ATC. He explains, “Predictability through performance in ATC and flight operations represents a strategic shift from reactive management to proactive, data-driven, and highly coordinated operations. High-level, real-time data sharing between all stakeholders enables better forecasting of demand-capacity imbalances.”
Predictability through performance in ATC and flight operations represents a strategic shift from reactive management to proactive, data-driven, and highly coordinated operations. High-level, real-time data sharing between all stakeholders enables better forecasting of demand-capacity imbalances.
The accuracy of air traffic predictability is essential for maximising airspace capacity: “When flights adhere to planned schedules and routes, it reduces controller workload and prevents ‘over-delivery’ or congestion in flight sectors. A lack of predictability forces airlines to load additional ‘contingency’ fuel, which adds weight and increases fuel burn.”
Ekkehard is convinced that the concept of A-CDM – where the efficiency and resilience of an airport is greatly improved – should be utilised in ATM environments as well: “Studies show that wider A-CDM deployment across Europe could reduce total network ATFM delays by 18-23% and improve sector capacity by up to 4%.” [1]
Studies show that wider A-CDM deployment across Europe could reduce total network ATFM delays by 18-23% and improve sector capacity by up to 4%.
Eurocontrol’s A-CDM Impact Assessment found that airports that have implemented A-CDM experience: up to 10% reduction in ATFM delays; an 85% increase in predictability of take-off times; optimised use of airport resources (stands, gates, taxiways), reducing fuel consumption and CO2 emissions; and enhanced slot adherence and resilience during irregular operations. [2]