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CM-0815 — Enhanced Short Term Conflict Alert (STCA) ground Safety Net using DAPs information via Mode-S technology

Improvement of the performance of the Short Term Conflict Alert (STCA) using the following Downlinked Aircraft Parameters via Mode-S Enhanced Surveillance (EHS): 
- Final State Selected Altitude (FSSA)
- Vertical Rate
- Roll Angle
- True Track Angle
- Track Angle Rate

Improvements such as early detection that the separation mode could be compromised and avoid nuisance alerts. Information related with the current aircraft downlinked parameters and intentions are used to improve the predicted trajectory and therefore to determine potential conflict precisely and accurately

Provide to the controllers with a reliable short term conflict alerting system improved with the use of DAPs information via Mode-S. The objective is to reduce the number of nuisance alerts in situation managed by ATC and to increase the warning time in case of unsafe aircraft manoeuvres.
Forecast V3 end date
Benefits start date (IOC)
Full benefits date (FOC)
Current Maturity Level
V1 finalised
Solution Data Quality Index
Current Maturity Phase
PCP Status


Related Elements

Enablers: No associated data

Dependent OI Steps: No associated data

PCP Elements: No associated data

Implementation Objectives: No associated data

ICAO Block Modules: No associated data