cora - level 2

CORA - level 2

Resolution calculation and ranking on Quality IndexNEXTOR - 2-3. June.2003

Mary Flynn, Seppo Kauppinen

2

ATC Layered Planning

Complexity detectionand resolution

Sequencing andmetering

Conflict detection andresolution

Tactical ATC

3

ASA ContextHuman-Machine Interface

HMI

ASA Multi-Sector PlanningASA Sequencing and

metering ASA Safety NetsASA Conflict Detection and

Resolution

Trajectory Prediction Interoperability

Data Sources

4

CORA Resolver

ResolutionsGeneration

Resolutions Update Management

Implementation Support

Display of resolutions

Monitoring Support

Resolution Revision Support

Start Point

End Point

5

ResolutionsGeneration

MTCD

SequencingtoolsFDPS

Environment Database

MTCD

Resolution Generation Context

6

Resolution domains

• Lateral– left/right heading change– direct to a future known way-point

• Vertical– up or down

• Speed– faster or slower

7

Resolution construction

• For each Domain– find a minimum flyable solution– minimum solution defines the resolution space– any flyable trajectory in resolution space is

considered a resolution– a set of resolutions is constructed– all resolutions must return somewhere on the

original trajectory

8

Resolution construction

P0

P2

Ps

tsti

9

Resolution ranking

• The best resolution shown automatically for each sense; heading, speed or level change

• Ranking is based on Quality Index calculated for each generated resolution

10

Potential Quality IndicatorsNumber of conflicts resolvedDegree of deviation from the original flight routeCo-ordination loadController workloadConflict-free horizonSequencing constraintsAirspace rulesMonitoringMinimum manoeuvreAirline preferencesPilot workloadEquipment and aircraft capability

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Quality Indicators considered

• Trajectory length • Trajectory profile • Trajectory deviation• Time difference• Time and Distance to first loss of separation• Time and Distance to closest point of approach• Co-ordination required• Number of ATCO clearances• Number of conflicts solved

12

Resolution list window

13

Aircraft oriented flight leg

14

Problem oriented flight leg

15

16

The End

• E-mail:seppo.kauppinen@eurocontrol.intmary.flynn@eurocontrol.int• WEBwww.eurocontrol.intwww.eurocontrol.fr

17

End notes

• Ranking will optimise used resolutions• Ranking adds value to ATCO own

resolutions• Further work needed to optimise values• Full simulation in 2004