December 1, 2008

Overview of theFAA’s

Aviation Environmental Design Tool (AEDT)

Presented to:

National Parks Overflight Advisory Group (NPOAG)

Presented by:

Christopher J. Roof

US DOT Volpe CenterEnvironmental Measurement and Modeling Division

12/1/2008 2

AEDT Development Team

This work is funded by the U.S. Federal Aviation Administration (FAA)

Office of Environment and Energy (AEE),

under the FAA/Volpe General Working Agreement.

The AEDT effort is co-managed by Ralph Iovinelli and Chris Roof.

12/1/2008 3

Outline

• What is AEDT?• What does AEDT mean for me?• Users of AEDT• Capability Demonstrations• Development Timeline• Current State of AEDT and Legacy Tools• Assessment• Next Steps

12/1/2008 4

What is AEDT?

• Single, Integrated Aviation Environmental Tool• Scale

- Global / National / Regional / Local

- Noise / Emissions / Fuel Burn• Interdependencies / Tradeoffs

• Future Technologies (EDS)• Integrated Economic Analysis (APMT)

EDS – Environmental Design Space = “Future Technology”APMT – Aircraft environmental Portfolio Management Tool = “Economics”

12/1/2008 5

AEDT as part of FAA/AEE Tools Suite

APMT

PARTIAL EQUILIBRIUM

BLOCK

APMT COSTS & BENEFITS

New Aircraft

Emissions

Noise

APMT

BENEFITS VALUATION

BLOCK

Monetized Benefits

CollectedCosts

Noise Emissions

Fuel Burn

AEDT

Schedule

Fleet

IntegratedNoise,

Emissions,and

Fuel BurnAnalyses

SingleAirport

Regional

GlobalStudies

EDS

New aircraftperformance

& environmentalcharacteristics

Policy and Scenarios

12/1/2008 6

What AEDT means for me?

AEDT will replace the following Models:• Integrated Noise Model - INM• Emissions and Dispersion Modeling System -

EDMS• Noise Integrated Routing System - NIRS

12/1/2008 7

What AEDT means for me? (cont)

• More consistent noise & emissions analyses

• Cost savings re defining model scenarios

• Easier / more effective communication with stakeholders

• Streamlined / improved Data input processes Analysis capabilities

• Tool that meets all needs Regulatory User expectations Public expectations

12/1/2008 8

AEDT UsersEDMS and INM• >> 1000 users worldwide• Environmental analyses, e.g., EIS, Part 150s, etc.• AEDT Design Review Group (DRG)

SAGE and MAGENTA• FAA and development team primary users• Support ICAO/CAEP and JPDO analyses

NIRS• Regional airspace redesigns

EDMS – Emissions and Dispersion Modeling System

SAGE – System for assessing Aviation’s Global Emissions

INM – Integrated Noise Model NIRS – Noise Integrated Routing System

MAGENTA - Model for Assessing Global Exposure from Noise of Transport Airplanes

12/1/2008 9

AEDT Users (cont.)

NASA “Advanced Vehicle Concepts and Implications for NextGen” Research Areas (NRA)

• Very Light Jets (VLJ), Tiltrotors, Cruise Efficient Short Take-Off and Landing aircraft (CESTOL), Supersonic Transport (SST), Unmanned Aerial Vehicles (UAS)

• AEDT used for advanced aircraft and operations modeling

NIRS – Noise Integrated Routing System

N+2 Hybrid Wing/BodyN+1 ConventionalRunway

SpiralDecent

NormalGlide slope

SteepDecent

12/1/2008 10

AEDT Users (cont.)

Design Review Group (DRG)• Select group of tool “power users”• Meet w/ development team 1-2 times per year• Help guide / review development progress

12/1/2008 11

Development Timeline

2008

EDMS 5.1 INM 7.0a

AEDT beta

Testing

2007

EDMS* INM* NIRS*

2009 2010 2011 2012

* Annual releases as needed

DRG #2

AEDT 2.0

AEDT Newsletters as needed

DRG meetings 1-2 times per year, as needed

NIRS 7.0 7.0a

EDMS* INM* NIRS*

DRG #3

12/1/2008 12

NonNon--CDACDA

CDACDA

Use of AEDT pre Version 2.0

• ICAO/CAEP 1. Global NOx Stringency2. Environmental Trends Assessment3. Local Air Quality Assessment

• Continuous Descent Approach (CDA)• Reduced Vertical Separation

Minimum (RVSM)• Military Airspace Openings Analysis• Atlantic Interoperability Initiative to

Reduce Emissions (AIRE)

12/1/2008 13

Current State – Legacy Models

INM 7.0aINM 7.0a NIRS 7.0b.1NIRS 7.0b.1

EDMS 5.1EDMS 5.1

Emissions Database

Emissions Modules

Study Data

Noise Databases

Noise Module

Regional Databases

Regional ModulesFleet Database

Aircraft Performance

Module

Contour Module

Terrain Module

Airports Databas

e

12/1/2008 14

Current State – AEDT Databases

• Redesigned database structure to support all legacy tools (i.e., INM, EDMS, NIRS, MAGENTA & SAGE)

• Data harmonized across legacy toolsincludes source database measurement data (Fitchburg- 04/02, 10/06, Crisfield- 10/08...)

• Harmonization with available international sources

AEDT Airports Database

AEDT Fleet

Database

AEDT Movements Database

AEDT Non-Aircraft

Database

12/1/2008 15

Current State – AEDT Modules

• Redesigned computational modules, e.g., emissions, aircraft performance

• Noise and emissions analyses utilize harmonized, integrated, common modules

Aircraft

Acoustics

Aircraft

Emissions

Emissions

Dispersion

Fleet and

Operations

Aircraft

Performance

12/1/2008 16

Aircraft DataAircraft Fleet Database

Study-Specific Database

Airports Database

Aircraft DataMovementsDatabase

Aircraft DataNon-aircraft Sources Database

GraphicalUser

Interfaceor

AdvancedInputFiles

GISCapability

Contours

Outputs

EmissionsInventories

Noise & Pollutants Grids

NoiseChange Analyses

0

1

2

3

4

5

6

7

8

9

10

CO HC NOx PM SOx

TotalNoise &

EmissionsResults

Database

CalculatePollutant

Concentrations

CalculateAdditional

Noise Metrics

Terrain Calculations

Weather Calculations

Fly Aircraft

Calculate Noise

Calculate EmissionsAll Pollutants

+ GHGs

SEL, Time Audible,Lmax, Time Above

AircraftPerformance+ Fuel Burn

Repeatfor all

Flights

Time

Z

X

Y

Using AEDT

12/1/2008 17

-20000 -15000 -10000 -5000 0 5000 10000 15000 20000

-20000

-15000

-10000

-5000

0

5000

10000

15000

20000

Y (

feet

)

X (feet)

N

Flight Path Trajectory

Legend

0.03

0.04

0.04

0.05

0.06

0.10

0.17

0.24

0.31

0.04

0.04

0.05

0.06

0.07

0.11

0.22

0.34

0.44

0.04

0.05

0.06

0.09

0.09

0.13

0.34

0.57

0.55

0.05

0.06

0.09

0.10

0.19

0.19

0.71

0.79

0.66

0.05

0.06

0.10

0.19

0.13

0.73

0.95

0.87

0.81

0.07

0.08

0.10

0.16

0.58

1.05

1.00

0.95

0.96

0.12

0.16

0.24

0.49

1.00

1.04

1.00

0.99

0.94

0.19

0.26

0.40

0.73

0.88

0.95

0.97

0.92

0.96

0.24

0.33

0.51

0.64

0.73

0.85

0.92

0.99

0.97

-20000 -15000 -10000 -5000 0 5000 10000 15000 20000

-20000

-15000

-10000

-5000

0

5000

10000

15000

20000

00.050.10.150.20.250.30.350.40.450.50.550.60.650.70.750.80.850.90.9511.11.1

• Parametric sensitivity and uncertainty analyses

• Comparisons to Gold Standard data • Expert reviews (DRG, ICAO CAEP, IRG,

SAE A-21, …)

• Capability Demonstrations and Sample Problems

Four-part Approach:

GOAL: Environmental analyses are informed with the associated uncertainty from the tools, inputs and assumptions used in the analysis process

AEDT Assessment

Monte Carlo simulations

Global Sensitivity Analyses

Distribution Sensitivity Analyses

Surrogate Models

12/1/2008 18

Next Steps

• Development1. Continue database harmonization process

2. Continue migration of modules to .NET environment

3. Integrated graphical user interface (GUI); developed and coordinated with design review group (publicly available)

• Analysis1. Support NASA NRAs

2. Continue Module- and System-level Assessment

• Continue stakeholder outreach• Legacy Releases as required…

12/1/2008 19

Questions / Discussion

FAA Environmental Tools web site:http://www.faa.gov/about/office_org/headquarters_offices/aep/models/

Christopher J. RoofU.S. Department of Transportation

John A. Volpe National Transportation Systems CenterEnvironmental Measurement and Modeling Division, RTV-4F

55 BroadwayCambridge, MA 02142

(617) 494-6344Christopher.Roof@dot.gov

http://www.volpe.dot.gov/acoustics/

http://www.volpe.dot.gov/air/

12/1/2008 20

AcronymsAEDT – Aviation Environmental Design ToolAPMT – Aviation environmental Portfolio Management ToolCAEP – Committee for Aviation Environmental ProtectionBADA – Base of Aircraft DataCDA – Continuous Descent ArrivalCESTOL - Cruise Efficient Short Take-Off and Landing aircraftDRG – Design Review GroupEDMS – Emissions and Dispersion Modeling SystemEDS – Environmental Design SpaceEIS – Environmental Impact StatementEPA – Environmental Protection AgencyFAA – Federal Aviation AdministrationGHG – Greenhouse gasGUI – Graphical User InterfaceICAO – International Civil Aviation AdministrationICD – Interface Control DocumentINM – Integrated Noise ModelJPDO – NextGen Joint Planning and Development OfficeMAGENTA – Model for Assessing Global Exposure from Noise of Transport AirplanesNASA – National Aeronautics and Space Administration.NET – Microsoft frameworkNIRS – Noise Integrated Routing SystemNOx – Nitrogen OxidesSAE, A-21 – Society of Automotive Engineers, Aircraft Noise and Emissions Modeling CommitteeSAGE – System for assessing Aviation’s Global EmissionsSST - Supersonic TransportUAS - Unmanned Aerial VehiclesVLJ - Very Light Jets