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RAD Evolution Workshop

This study analyzes the impact of RAD restrictions on horizontal flight planning efficiency, including correlations, differences between planning and actual flight phases, and the utilization of RAD restrictions. The study utilizes the SAAM / NEST tool and methodology to assess the impact and provide insights for improvement.

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RAD Evolution Workshop

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  1. RAD Evolution Workshop RAD Impact Assessment Study Boris Radovanovic NM/NSD/PCI 12 DEC 2018 RAD WS 12 - 13 DEC 2018, Brussels, Belgium

  2. Study Requirement

  3. RNDSG Action Requirement

  4. Content and Analyses

  5. Purpose and Scope • RAD restrictions impact on the horizontal flight planning efficiency. • Correlation of two restrictions. • Difference in applying restrictions in planning and actual phase of flight.

  6. Tool and Methodology - SAAM / NEST All calculations are done with following baseline and assumptions • AIRAC 1705 SAAM/NEST dataset is used; • Traffic: 19 MAY 2017 (34001 flights); • No flow regulations; • Sectors configurations and capacities are not considered; • No military activities; • No wind constrains; • Improved SAAM Assignment on the shortest distance between city pairs; • Only RAD restrictions impacting horizontal trajectory are investigated in a way as they are defined in SAAM, considering how they are described in the RAD document.

  7. Macroscopic Analysis

  8. Macroscopic Analysis • Difference between RTE-DES and RTE-RAD

  9. M1

  10. RAD ON - SAAM assignment

  11. M3

  12. RAD OFF - SAAM assignment

  13. Macroscopic Analysis • Percentage of used RAD Pan-European Annex restrictions in SAAM/NEST assignment. • Used restrictions - all RAD Pan-European annex restrictions defined in the SAAM/NEST dataset that have be considered during any of the assignment steps. • Not used restrictions - all RAD Pan-European annex restrictions that were not involved in any of the assignment computations. • As an average, 6 RADAN restrictions has to be considered per CP (flights on CP EDDM_EGBB have to consider 32 different RADAN restrictions with all braches taken in consideration).

  14. RAD Restriction Utilization • Route extension (in NM) caused by RAD restriction (horizontal) Significant impact on horizontal flight efficiency (total penalization) City-pairs per number of different RAD Pan-European annex restrictions considered (main branch)

  15. RAD Restriction Utilization • Route extension (in NM) caused by RAD restriction City-pairs significantly impacted by RAD City-pairs per number of different RAD (total length difference between restricted (average length difference between restricted and not restricted assignment)and not restricted assignment)

  16. LIPE_EDFM EDFM LIPE

  17. LIPE_EDFM EDFM LIPE

  18. LIPE_EDFM EDFM LIPE

  19. LIPE_EDFM EDFM LIPE

  20. LIPE_EDFM EDFM LIPE

  21. LEPA_EDDF EDDF LEPA

  22. LEPA_EDDF EDDF LEPA

  23. LEPA_EDDF EDDF LEPA

  24. RAD Restriction Utilization Possible correlation with other RAD restrictions • pivot - by resolving this RAD restriction others restrictions at the same step will be resolved as well • periphery - restrictions that were in the same step as pivot, but were not selected for computation; their conditions were satisfied by resolving the pivot restrictions.

  25. RAD Restriction Utilization • Deviation from the RAD restrictions on ATC • Distribution of RAD restrictions from which flights were exempted in m3 (per country of origin)

  26. RAD Restriction Utilization • Deviation from the RAD restrictions on ATC

  27. RAD Restriction Utilization • Deviation from the RAD restrictions on ATC

  28. RAD Restriction Utilization

  29. Contradictory / Double

  30. RAD Restriction Simplification • Comparison of RAD restriction pairs as they are defined in RAD Annex

  31. Study Presentation

  32. Presentation and Discussion • Internal EUROCONTROL NM distribution in August 2017. • Bi-lateral skyguide - EUROCONTROL NM meeting in Geneva (12 SEP 2017). skyguide has provided EUROCONTROL NM with comments on RAD restrictions used as an example in the document and has requested additional data to proceed with further analysis. • RMG/30 (NOV 2017) with relevant action it was agreed the NRCs, AOs and CFSPs to provide relevant feedback on presented methodology, results and conclusions. • FABEC AOG workshop in Langen (29 JAN 2018), where it was agreed that ANSPs will request and evaluate additional data on RAD utilisation provided by EUROCONTROL NM. • Discussed (but not presented) at the RNDSG/93 (FEB 2018) where several ANSPs expressed their support for this study and requested EUROCONTROL NM to continue with the further elaboration of this study. • Concluded that the “RAD Impact Assessment Study” document to be updated with the new examples and EUROCONTROL NM to continue sharing additional data with ANSP on their request.

  33. Presentation and Discussion • Officially presented at RNDSG/95 (SEP 2018). • In accordance with Action RNDSG/95-12 (SEP 2018) and on States request EUROCONTROL NM provided required data to Austria and Greece. • FMP exchange: Italy and Spain requested data

  34. QUESTIONS, COMMENTS and DISCUSSIONS

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