# Presentation: 622066

## Overview of theFAA’sAviation Environmental Design Tool  (AEDT) 

- Presented to:
**National Parks Overflight Advisory Group (NPOAG)**
- Presented by:
**Christopher J. Roof**
**US DOT Volpe Center**
**Environmental Measurement and Modeling Division**

## 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.***

## 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

## 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”*

## 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 ***

***Collected***
***Costs***

***Noise***
***       ******Emissions***
***                 ******Fuel Burn**** *

**AEDT**

***Schedule ***
***Fleet***

**Integrated****Noise, ****Emissions,****and ****Fuel Burn****Analyses**

**Single****Airport**
**Regional**
**Global**
**Studies**

**EDS**

**New aircraft****performance****& environmental****characteristics**

## 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

## 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

## AEDT Users

**EDMS 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*

## 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/Body_

- _N+1 Conventional_

## 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

## Development Timeline

**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*

**NIRS   7.0    7.0a**

**EDMS* INM* NIRS***

**DRG #3**

**Notes:**
INM Version 7.0a - 1st Very Light Jet (Eclipse)
EDMS Version 5.1 - Hazardous Air Pollutants (HAPs) emissions

## Use of AEDT pre Version 2.0

**Use of AEDT pre Version 2.0**

- ICAO/CAEP
- Global NOx Stringency
- Environmental Trends Assessment
- Local Air Quality Assessment
- Continuous Descent Approach (CDA)
- Reduced Vertical Separation Minimum  (RVSM)
- Military Airspace Openings Analysis
- Atlantic Interoperability Initiative to Reduce Emissions (AIRE)

## Current State – Legacy Models

## Current State – AEDT Databases

- Redesigned database structure to support all legacy tools (i.e., INM, EDMS, NIRS, MAGENTA & SAGE)
- Data harmonized across legacy tools
- 	*includes source database measurement data (Fitchburg- 04/02, 10/06, Crisfield- 10/08...)*
- Harmonization with available international sources

## 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 **

## Using AEDT

**Calculate****Pollutant****Concentrations**

**Calculate****Additional ****Noise Metrics**

*All Pollutants** + GHGs*

*SEL, Time Audible,**Lmax, Time Above*

*Aircraft**Performance**+ Fuel Burn*

**Repeat****for all****Flights**

***Time***

**Using AEDT**

## AEDT Assessment

- 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*

## Next Steps

- Development
- Continue database harmonization process
- Continue migration of modules to .NET environment
- Integrated graphical user interface (GUI); developed and coordinated with design review group (publicly available)
- Analysis
- Support NASA NRAs
- Continue Module- and System-level Assessment
- Continue stakeholder outreach
- Legacy Releases as required...

## Questions / Discussion

**FAA Environmental Tools web site:**
- _[http://www.faa.gov/about/office_org/headquarters_offices/aep/models/](http://www.faa.gov/about/office_org/headquarters_offices/aep/models/)_** **
**Christopher J. Roof**
**U.S. Department of Transportation**
**John A. Volpe National Transportation Systems Center**
**Environmental Measurement and Modeling Division, RTV-4F**
**55 Broadway**
**Cambridge, MA 02142**
**(617)**** ****494-6344**
- _[Christopher.Roof@dot.gov](mailto:Christopher.Roof@dot.gov)_
- _[http://www.volpe.dot.gov/acoustics/](http://www.volpe.dot.gov/acoustics/)__ _
- _[http://www.volpe.dot.gov/air/](http://www.volpe.dot.gov/air/)_** **

## Acronyms

- AEDT – Aviation Environmental Design Tool
- APMT – Aviation environmental Portfolio Management Tool
- CAEP – Committee for Aviation Environmental Protection
- BADA – Base of Aircraft Data
- CDA – Continuous Descent Arrival
- CESTOL - Cruise Efficient Short Take-Off and Landing aircraft
- DRG – Design Review Group
- EDMS – Emissions and Dispersion Modeling System
- EDS – Environmental Design Space
- EIS – Environmental Impact Statement
- EPA – Environmental Protection Agency
- FAA – Federal Aviation Administration
- GHG – Greenhouse gas
- GUI – Graphical User Interface
- ICAO – International Civil Aviation Administration
- ICD – Interface Control Document
- INM – Integrated Noise Model
- JPDO – NextGen Joint Planning and Development Office
- MAGENTA – Model for Assessing Global Exposure from Noise of Transport Airplanes
- NASA – National Aeronautics and Space Administration
- .NET – Microsoft framework
- NIRS – Noise Integrated Routing System
- NOx – Nitrogen Oxides
- SAE, A-21 – Society of Automotive Engineers, Aircraft Noise and Emissions Modeling Committee
- SAGE – System for assessing Aviation’s Global Emissions
- SST - Supersonic Transport
- UAS - Unmanned Aerial Vehicles
- VLJ - Very Light Jets