2017 AIRPORT PLANNING & NEPA WORKSHOP Aviation Environmental Design Tool Technical Talk NEPA Session 3 November 30, 2017 Clint Morrow Session Moderator KB Environmental Sciences, Inc. Panel members from:
Goals of the AEDT Technical Talk Learn how AEDT estimates fuel consumption, emissions, and noise associated with airport projects Find out how AEDT assessments fit into the overall NEPA process Get tips on how to use AEDT effectively, including tech support and resources
Introduction to the Panel FAA Office of Environment and Energy (AEE): Mohammed Majeed Bill He Brad Nicholas, HMMH Clint Morrow, KB Environmental Sciences
Overview of the Session 1. Introduction 2. AEDT background, current status, and future plans (FAA) 3. Using AEDT to model noise (HMMH) 4. Using AEDT to model emissions (KBE) Followed by a facilitated discussion and Q&A session
Aviation Environmental Design Tool (AEDT) Overview Federal Aviation Administration Presented to: 2017 ACC/ACI-NA Airport Planning and NEPA Workshop By: Mohammed Majeed and Bill He Office of Environment and Energy Federal Aviation Administration Date: November 30, 2017
Aviation Environmental Design Tool Features Computes noise, fuel burn, emissions, and air quality Able to conduct analyses at airport, regional, national, and global scales Replaces several legacy tools (INM, NIRS, EDMS, SAGE and MAGENTA) Applications AEDT Air space and airport design and planning (e.g., Part 150 studies or National Environmental Policy Act reviews) International Civil Aviation Organization (ICAO) Committee on Aviation Environmental Protection (CAEP) analyses Assessing benefits from introducing NextGen and new aircraft and engine technologies (e.g., from FAA CLEEN and NASA Programs) For more information on AEDT or to download it, please visit: https://aedt.faa.gov/ Federal Aviation Administration 1
AEDT Modeling Process Overview Federal Aviation Administration 2
AEDT Development who are involved FAA AEE (Office of Environment & Energy) Development teams include DOT Volpe Center, ATAC, Metron, GeorgiaTech, UNC, etc. Continuous feedbacks from users in the US and beyond Others (i.e. aircraft data from manufacturers, models and databases from other institutions) For more information on AEDT or to download it, please visit: https://aedt.faa.gov/ Federal Aviation Administration 3
AEDT Licenses as of September 2017 Federal Aviation Administration 4
Noise Outputs Federal Aviation Administration 5
Emission Reports: like (and unlike) EDMS Includes emissions above mixing height Entire modeled flight AEDT can also export emission reports to Excel. Federal Aviation Administration DRAFT SCREENSHOT; FICTIONAL RESULTS 6
AEDT FY16/FY17 Selected Highlights Dynamic grid for db and nondb noise metrics Usability improvements (vector tracks/dispersion) Roadway network designer & VALE Reporting Emissions concentration display Federal Aviation Administration 7
AEDT updates in 2018 what to expect? AEDT 2e (March, 2018) Fleet database update to include new aircraft models/types Airbus A350, A320neos Gulfstream G650 AEDT 3 (Fall, 2018) Aircraft performance modeling update BADA4 implementation more accurate and unified modeling of aircraft performance for both terminal area and cruise operations. Aircraft takeoff weight and takeoff thrust modeling to better represent flight operations Improved noise, emissions, and fuel burn estimation methodologies Other updates Federal Aviation Administration 8
AEDT and User Support - Websites How to Obtain AEDThttps://aedt.faa.gov/Purchase.aspx AEDT Support Website - https://aedt.faa.gov Provides product information Frequently Asked Questions (FAQs) including known issues Optional tools Support feedback Training material example exercises, instructional videos, etc. AEDT Functionality Comparison https://aedt.faa.gov/2d_information.aspx Federal Aviation Administration 9
AEDT Contacts Joseph.Dipardo@faa.gov Mohammed.Majeed@faa.gov Hua.He@faa.gov Federal Aviation Administration 10
2017 AIRPORT PLANNING & NEPA WORKSHOP Noise Modeling for NEPA in AEDT NEPA Session 3 AEDT Technical Talk Brad Nicholas Principal Consultant HMMH bnicholas@hmmh.com
AEDT NEPA Noise Analysis Steps Define Noise Modeling Scenarios Collect Data Bay Area Regional Airport Runway Extension EA Refine Data and Create AEDT Input Run AEDT Calculations Analyze Impacts Document Results
AEDT NEPA Noise Analysis Define Noise Modeling Scenarios Existing Conditions Proposed Action Year of project implementation Typically an additional forecast year No Action Same year(s) as Proposed Action scenario(s) Baseline for comparison to Proposed Action
AEDT NEPA Noise Analysis Collect Data Physical Characteristics Airfield layout Flight track geometry Terrain Weather data* Aircraft noise and performance data* Operational Characteristics Aircraft operations Runway use Flight track use *Included in AEDT; requires FAA approval to use alternative data
AEDT NEPA Noise Analysis Refine Data and Create AEDT Input Create Representative Flight Tracks Create Average Annual Day Operations Runway Use Flight Track Use
AEDT NEPA Noise Analysis Run AEDT Calculations 65 db, 70 db, and 75 db DNL Contours Noise Levels at Noise Sensitive Locations
AEDT NEPA Noise Analysis Analyze Impacts Significant Impact: Proposed Action increases noise levels by 1.5 db or more relative to No Action Noise level under the Proposed Action is a DNL of 65 db or greater Location is noise sensitive based on 14 CFR Part 150
AEDT NEPA Noise Analysis Document Results Input Methodology Results
2017 AIRPORT PLANNING & NEPA WORKSHOP Using AEDT to Model Emissions NEPA Session 3 AEDT Technical Talk Clint Morrow Senior Environmental Engineer KB Environmental Sciences, Inc. cmorrow@kbenv.com
Airports include many sources of air emissions AIRCRAFT TAXIING AUXILLIARY POWER UNITS (APU) AIRCRAFT LANDINGS AND TAKEOFFS GROUND SUPPORT EQUIPMENT (GSE) STATIONARY SOURCES MOTOR VEHICLES SOURCE: GOOGLE EARTH IMAGERY OF RONALD REAGAN WASHINGTON NATIONAL AIRPORT, 2016 MASS TRANSIT
Airport emissions are comprised of regulated air pollutants and greenhouse gases CH 4 CO 2 N 2 O Lead PM VOC CO NO 2 SO Ozone 2 NOx SOURCE: RONALD REAGAN WASHINGTON NATIONAL AIRPORT, 2017
AEDT is used to model emissions for specific types of projects in regulated geographic areas TYPE OF PROJECT ATTAINMENT STATUS Projects that are typically exempt: Routine maintenance and repair Apron pavement work Pavement markings/lighting systems NAVAID installation and operation Airport maintenance facilities Vehicle staging areas
Emissions inventories are the most common assessments conducted using AEDT 400 EMISSIONS INVENTORY NOx Emissions (tons/year) EMISSIONS DISPERSION (µg ) ADMS (Inventory: 351.9 Mg/annum) AEDT/EDMS (Inventory: 360.3 Mg/annum) 350 300 Roadway 250 APU 200 150 GSE ALAQS-AV + LASAT (Inventory: 372.7 Mg/annum) LASPORT (Inventory: 394.4 Mg/annum) 100 Aircraft 50 0 No Build Alt. A Alt. B Alt. C
A combination of AEDT and other models is sometimes necessary to fully address NEPA AEDT models aircraft and associated ground support equipment AEDT also models motor vehicles and other sources by using additional emissions models Temporary construction emissions are modeled using other tools and methods not in AEDT
There are many common data inputs when modeling emissions and noise in AEDT Input Data Aircraft Ops/Fleet Mix Weather Runway Use Flight Tracks Aircraft Taxi Times Ground Equipment Motor Vehicles Facility Locations Emissions Inventory Yes Yes No No Yes Yes Yes Yes Noise Contours Yes Yes Yes Yes No No No No For emissions dispersion modeling, flight tracks and runway use are required
AEDT modeling in the context of the NEPA process AEDT is used to determine impacts to air quality and noise due to a proposed airport project Emissions and noise modeling are typically completed towards the end of the planning and NEPA process During the planning process it is important to conduct screening exercises to minimize or avoid significant impacts Screening AEDT Modeling Impact Analysis