Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-1A Page 1 The ONESKY (Single-Sky) project and what it means for ASAS A view on the results of the ONESKY project By R. Van Gent

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-2A Page 2 l propose new EU airspace structure (Single Sky) –support an efficient traffic flow. –based on needs. –regardless of national frontiers. –acknowledging the geopolitical realities. l demonstrate that the proposals: –will increase airspace capacity. –will decrease delays. ONESKY Project objectives

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-3A Page 3 ONESKY Approach to the work l Fast time simulation study –TAAM, RAMS l Two lines of action: –Optimise ‘current’ airspace locally. –Redesign total EU airspace from scratch. l Two phases –Small scale partial designs. –Integration & optimisation in overall model.

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-4A Page 4 ONESKY Consortium l NLR (NL - Lead) l AENA (E) l DNA/(CENA - F) l QinetiQ (UK) l DFS (D) l Isdefe (E) l NATS (UK) l NEI (NL) l SICTA (I) l Skyguide (CH)

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-5A Page 5 ONESKY - current line Padua Baseline Analysis 5 Traffic Density Traffic Density Plot for LIPPN3 - 23/07/99

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-6A Page 6 ONESKY Current line Padua Iteration 1 l Re-direct southbound traffic west of BZO l Use existing route network l Original Routes –PITAR-BZO-SUMIR-ALBET –PITAR-BZO-ALESE-VIC l New Routes –PITAR-RENTA-ADOSA-ALBET –PITAR-RENTA-ADOSA-VIC

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-7A Page 7 ONESKY Padua - Iteration 2 l Re-directing northbound traffic west of BZO l Navigate via existing waypoints l Original Routes –VIC-ALESE-BZO-ENOGO –ALBET-SUMIR-BZO-ENOGO l New Routes –VIC-RENTA-ENOGO –ALBET-RENTA-ENOGO l Converging traffic at ENOGO

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-8A Page 8 ONESKY Padua Iteration 3 l Northbound traffic via ADOSA re-directed west of BZO l Original Routes –ADOSA-BORMI-BZO-MATAR –ADOSA-BORMI-BZO-BRENO l New Routes –ADOSA-BORMI-ENOGO-MATAR –ADOSA-BORMI-ENOGO-BRENO l Remaining Munich airspace allocated to Padova North

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-9A Page 9 ONESKY Padua Results - Conflict Count Decrease of 41% between the baseline and iteration 3 Decrease of 11% between optimisation1 and iteration3

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-10A Page 10 l Problem areas selected l Baseline 1999 l Changes made to airspace since 1999 l Iterations/designs based on TOSCAII l Comparative results obtained –Max gain in terms of delay-reduction is expected to be between % ONESKY Current line Summary

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-11A Page ONESKY Clean sheet study: Redesign total EU airspace from scratch.

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-12A Page ONESKY Clean sheet study Workloadings Initial PSB +35% compared to 1999

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-13A Page ONESKY Clean sheet study Workload optimised PSB design

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-14A Page 14 ONESKY Clean Sheet WP3 (optimised PSB)

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-15A Page 15 ONESKY Clean Sheet WP3 (IT 2 -direct routing)

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-16A Page ONESKY Military sectors in core area!

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-17A Page 17 ONESKY Clean Sheet compared to Current

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-18A Page 18 ONESKY conclusions l Single Sky initiative necessary for Europe (grid-lock imminent if not started soon) l 35 % capacity increase can be expected! –But… l Not much more!!

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-19A Page 19 ONESKY study shows ATCo workload is bottleneck l ATC function –Collision prevention –Expedite and Maintain traffic flow l Sector limit is around 35 aircraft an hour –Validated by a number of studies –Supported by Air Traffic Controllers l Sector size cannot be made too small –Transition time becomes too short l With increasing traffic more emphasis will go to Collision Prevention and less to Expedite and Maintain traffic flow resulting in higher charges for less service

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-20A Page 20 The promise of ASAS (self separation) l Studies show crew workload hardly increases with densities up to 9 times present core European densities (due to the distributed nature)

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-21A Page 21 ATM Paradigm Shift: increased Efficiency and more Capacity, with INCREASED SAFETY, by... l Delegation of responsibilities –Separation Assurance based on the best available aircraft position & intent data (using ASAS technologies) l Co-operative Flight Planning... –all ATM participants share the same data, processed in closed loops –replace routine voice communication by data link l Weather independent TMA and Landing throughput... –with ASAS in combination with enhanced future landing systems l Enhanced airport surface movement... –ASAS will enhance safety (e.g. runway incursion) and efficiency of airport ground operation

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-22A Page 22 But…. Where/how to progress? l Real benefits are expected from delegated responsibilities/ self-separation l Core Europe too complex for self separation as first step l Package 1 applications are a good first step (for Core Europe) l However, there is more than Core Europe (ASAS initially seen as application for sparse density areas)

Nationaal Lucht- en Ruimtevaartlaboratorium National Aerospace Laboratory NLR CXXX-23A Page 23 Conclusions / Suggestion l ATCo workload is the problem of present ATM paradigm l Delegate / transfer of responsibilities is needed (fast) to counter grid-lock l Start implementation of self-separation in sparse density regions parallel to Package 1 to also gain experience with autonomous operations