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Simulation of Air Traffic Over the North Atlantic Airspace. E. A. Elsayed Rutgers University Presented at TLI Meeting November 15, 2000 Sponsored by FAA 1995-2000. Reykjavik. Gander. Shanwick. New York. Santa Maria. Current Separation Standards. Longitudinal separation 10 min.

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Simulation of air traffic over the north atlantic airspace

Simulation of Air Traffic Over the North Atlantic Airspace

E. A. Elsayed

Rutgers University

Presented at TLI Meeting

November 15, 2000

Sponsored by FAA 1995-2000


Reykjavik

Gander

Shanwick

New York

Santa Maria


Current separation standards
Current Separation Standards

Longitudinal separation 10 min

Vertical separation 2000 feet

Lateral separation 60 nm


Future separation scenarios
Future Separation Scenarios

Vertical Lateral Longitudinal Crossing

Baseline

RVSM 1

RVSM 2

RVSM 3

RVHSM

Free Flight

RVSM - Reduced Vertical Separation Minima

RVHSM - Reduced Vertical Horizontal Separation Minima


Historical data
Historical Data

  • 4th and 15th of each Month in 1996

  • All Flights Crossing 20° Longitude in 24 Hour Period

  • Summer Data from April - October ... 14 Days

  • Winter Data from November - March ... 10 Days

  • Military Air Craft Included


Historical flight events format
Historical Flight Events Format

Call Sign AC Type, Mach Fuel Date, US Dollar % Payload

Origin - Destination Date, Hour Min Time Track

No Restrictions



Flight regions
Flight Regions

Region Description


Distribution of air craft types
Distribution of Air Craft Types

Model 2000 2005 2010


Air craft types
Air Craft Types

Model 2000 2005 2010


Verifications flight events
Verifications: Flight Events

  • Generation of flight events: NICE groups used the following to generate flight events

    Traffic growth by region (TFG)

    Changes in aircraft distributions

    Speed distributions for aircraft

    TOW, Directions, Payload

    Historical data obtained by Iceland Radio for 24 day in 1996


Verifications flight events1
Verifications: Flight Events

  • Statistically generated flight events: used by NICE-USA

    • generated flight events were compared with actual flight events of 1996 and future expectations

  • Incrementally generated flight events: used by NICE-ICE and NICE-UK

    • add incremental flights to 1996





Nice models and verifications
NICE Models and Verifications

AMELIA – Icelandic CAA/University of Icelanl (NICE-ICE)

INAATSM – US FAA/Rutgers University (NICE-USA)

NATSIM – UK NATS (NICE-UK)

LIDO (Flight Planning)


Nice models
NICE Models

  • INAATSM – US FAA/Rutgers University (NICE-USA)

    • Developed an optimization algorithm to obtain optimal flight plans (Minimum Fuel Track)

    • NICE-USA uses automated conflict detection and reclearance logic, programmed into the fast-time simulation models.


Verifications flight plans
Verifications: Flight Plans

  • Flight Plans: LIDO vs. NICE-USA

    Same flight events used by NICE-USA and NICE-ICE and LIDO to determine optimal flight plans.

    Fuel consumption and origin-destination time are compared.


Typical flight plan
Typical Flight Plan

1047 11263020840 44.53 57.42 999.00 45.00 48.00 50.00 51.00 51.00 51.00 12.00 35.00 999.00 35.00 37.00 37.00 37.00 39.00 39.00 81092.562500 13121.882812 RN 40.38 73.46 50.02 -8.33 650287.00 159337.062500 24845.792969 KJFK EDDF





Lido vs nice usa flight plan comparisons flight levels

SUM

-3000 ft

-2000 ft

-1000 ft

0

1000 ft

2000 ft

3000 ft

TOTAL

208

1

35

1

136

0

32

3

%

100%

0%

17%

0%

65%

0%

15%

1%

LIDO vs. NICE-USA Flight Plan ComparisonsFlight Levels


Lido vs nice usa flight plan comparisons lateral deviations

SUM

- +

-4°

-3°

-2°

-1°

TOTAL

208

3

5

9

28

51

87

19

10

2

1

%

100%

1%

2%

4%

13%

25%

42%

9%

5%

1%

0%

LIDO vs. NICE-USA Flight Plan ComparisonsLateral Deviations





Fuel savings mean fuel savings in 1000s tons per year
Fuel SavingsMean fuel savings in 1000s tons per year


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