POINT MERGE A MORE EFFICIENT WAY OF SEQUENCING ARRIVALS

Transcription

1 POINT MERGE A MORE EFFICIENT WAY OF SEQUENCING ARRIVALS Terry Symmans EUROCONTROL Experimental Centre The European Organisation for the Safety of Air Navigation

2 Open Loop Radar Vectors Efficient and flexible But Peaks of high workload High frequency occupancy Lack of anticipation Difficult to optimise vertical profiles Paris CDG, source: ADP 2

3 Sequencing with P-RNAV But at high traffic loads, the controllers inevitably revert to radar vectoring in order to maximise capacity 3

4 VECTORING TO BUILD THE LANDING SEQUENCE INTENSIVE WORKLOAD How it is done today 28 HOLDING UNPREDICTABLE TRACKS AND INEFFICIENT DESCENTS FMS NOT USED 4

5 Towards Point Merge 28 TRADITIONAL RACETRACK HOLD REPLACED BY A LINEAR (ARC) ONE x 5

6 Point Merge Concept Integrated sequence Merge point Envelope of possible paths Arrival flow Arrival flow Sequencing legs (at iso-distance from the merge point) 6

7 How it works (1) The Green aircraft is given a DCT TO when the Gold aircraft reaches the appropriate distance from the leg 7

8 How it works (2) The same technique is repeated for the Blue aircraft 8

9 Trajectory Dispersion/Containment M3 TMA Triangle M3 TMA Vectors Baseline Point Merge 9

10 Controller Workload AP - Evolution of mean ISA value for Vectors and Point Merge Very high Very low ISA Value 5 4,5 4 3,5 3 2,5 2 1,5 1 0, ISA press number Vectors Point Merge Continuous instantaneous workload self-assessment ratings significantly higher in Vectoring conditions in Approach 10

11 Reduced Holding DUBLIN - Total Number of holds per organisation Aggregation of 5 runs per organisation - 1 measured hour VECTORS VECTORS Metered PMS PMS Metered 70 Number of aircraft in hold Dramatic decrease of holding aircraft in the Point Merge conditions TOTAL NB HOLD 1 11

12 Descent profiles Continuous Descents Altitude (x 100ft) Flown distance to FAF (NM) 12

13 13 CDR CDR DWN26 IRKUM FL90 SHEEP FL70 SHEP2 LIP01 FL70 SHEP4 SHEP5 SHEP6 BYN01 FL90 KROOP KROP2 FL80 KROP3 KROP4 KROP5 KROP6 FL80 BAGSO FL100 DEXEN SHEP3 NEVRI ROTEV NIMAT DWN50 BAMLI SUROX BOYNE OLAPO INKUR DWN28 DWW02 PELIG BAL OSGAR KEPOR LIFFY LIPGO GREYA ARVOK FL100 SANDY GERVO BLESA NEPOD DIRUM VATRY BEPAN BUNED OLONO SUTEX RAVEN FL100 GIRAS FL90 STANY NARMU RONON SUR01 LAPMO A3000 ABENO CLODY KLY DUBLIN POINT MERGE SYSTEM FOR RUNWAY 28

14 NIMAT BYN01 FL90 BOYNE GIRAS FL90 KROOP BAGSO FL100 KROP2 FL80 LAPMO A3000 NARMU KROP3 KROP4 KROP5 KROP6 FL80 14

15 FLIGHT MANAGEMENT SYSTEM NAVIGATION DISPLAY VIEW 15

16 ROUTE ANTICIPATED BY FLIGHT PLAN BYN01 FL90 KROOP BAGSO FL100 KROP2 FL80 LAPMO A3000 NARMU KROP3 KROP4 KROP5 KROP6 FL80 16

17 BYN01 FL90 KROOP BAGSO FL100 KROP2 FL80 ROUTE TACTICALLY SHORTENED KROP3 LAPMO A3000 DESCENT CLEARANCE GIVEN 17

18 FROM CRUISE TO THE SEQUENCE LEG CDO CDO LIMITED DISTANCE ON SEQUENCE LEG LEVEL FROM SEQUENCE LEG VIA ILS INTERCEPT TO RWY CDO 18

19 DIRECT TRACK TO BE EXPECTED WHEN TRAFFIC PERMITS BAGSO FL100 LAPMO A

20 FROM CRUISE TO THE SEQUENCE LEG CDO FULL CDO NO LEVEL OFF SEGMENT FROM SEQUENCE LEG VIA ILS INTERCEPT TO RWY CDO 20

21 European Point Merge Initiatives Norway (Oslo Gardemoen implemented April 2011) Ireland (Dublin implementation 15 November 2012) Belgium (Brussels) France (Paris TE Sector) Germany (Munich) Italy (Rome) Southern Norway (Stavanger, Trondheim, Bergen) Spain (Barcelona) UK (Manchester, Glasgow, London TMA) 21

22 WOODY MOT05 EBBR POINT MERGE PS1 RWYs 25R/25L MOT04 WOD01 FL100+ TER05 MOT03 WOD02 NIK ANT WESTY BUN LEG05 TER04 MOT02 WOD03 CHRLY A3000 LEG04 TER03 MOT01 WOD04 ALPHA A2500 KERKY MOTTO FL90- BRAVO LEG03 TER02 AFI WOD05 BUB DELTA EASTO A4000 FLO LEG02 TER01 TERRY FL90- NOTE: SLP 230kts IAS HUL LEG01 WOODY, MOTTO, TERRY and LEGGY LEGGY LGE CIV LNO SPI TS

23 Conclusions The Point Merge method Reduces radar vectoring and RTF usage Reduces controller workload Maintains flexibility to be able to expedite or delay aircraft Provides close-in fine tuning capability for runway throughput requirements Keeps aircraft on FMS trajectory and enhances flight predictability Increases flight crew situational awareness Gives fuel reduction potential Enables environmental benefits through CDO 23