DRAFT Noise Exposure Maps (NEMs) Years 2017 and 2022 Public Information Workshop October 12, 2017

Introductions Tom Nissalke Walter Vinson Carrol Fowler Director of Planning and Environmental Walter Vinson Public Program Coordinator Carrol Fowler Consultant, KB Environmental Sciences, Inc.

Objectives of This Presentation Describe what are Noise Exposure Maps (NEMs) Explain why the Year 2017/2022 NEMs were prepared Provide an overview of airport operations Summarize historical efforts by the DOA to address land uses that are not compatible with aircraft noise Discuss the Federal Aviation Administration’s (FAA’s) requirements and methodologies that were used to prepare NEMs Present the Draft NEMs Disclose the agency/public involvement efforts to date Inform you how to provide your comments on the Draft NEMs

Hartsfield-Jackson Basics ATL is the world’s busiest airport CY2017, approximately: 889,900 take-offs and landings 105 million passengers 610 thousand metric tons of cargo City of Atlanta owns ATL; it’s Department of Aviation (DOA) operates the airport

Hartsfield-Jackson Basics (continued) Imagery Date: March 31, 2017

What is an NEM? NEMs are scaled depictions of an airport, the airport’s aircraft noise contours and the land uses surrounding the airport that are considered to be noncompatible with aircraft noise

Why Were Year 2017 and 2022 NEMs Prepared? The FAA requests that airport sponsors that have a Noise Compatibility Program update an airport’s NEMs approximately every five years The 2017/2022 NEMs for ATL will replace the NEMs that were previously determined to be in compliance with Title 14, Part 150 of the Code of Federal Regulations (14CFR150)

Land Uses That Are Noncompatible With Aircraft Noise Noncompatible land uses are uses that are either normally noncompatible with the outdoor noise environment or uses that are not adequately attenuated (i.e., reduced) for indoor activities Without proper attenuation methods, in aircraft noise contours of YDNL 65 dB or more, noncompatible land uses include: Residences Schools Hospitals Nursing homes Churches Land use YDNL (expressed in dBA) Below 65 65–70 70–75 75–80 80–85 Over 85 Residential   Residential, other than mobile homes and transient lodgings Y N(1) N Mobile home parks Transient lodgings Public Use Schools Hospitals and nursing homes 25 30 Churches (i.e., places of worship), auditoriums, and concert halls Governmental services Transportation Y(2) Y(3) Y(4) Parking Commercial Use Offices, business and professional Wholesale and retail—building materials, hardware and farm equipment Retail trade—general Utilities Communication Manufacturing and Production Manufacturing, general Photographic and optical Agriculture (except livestock) and forestry Y(6) Y(7) Y(8) Livestock farming and breeding Mining and fishing, resource production and extraction Recreational Outdoor sports arenas and spectator sports Y(5) Outdoor music shells, amphitheaters Nature exhibits and zoos Amusements, parks, resorts and camps Golf courses, riding stables and water recreation SLUCM=Standard Land Use Coding Manual. Y (Yes) = Land Use and related structures compatible without restrictions. N (No) = Land Use and related structures are not compatible and should be prohibited. NLR = Noise Level Reduction (outdoor to indoor) to be achieved through incorporation of noise attenuation into the design and construction of the structure. 25, 30, or 35=Land use and related structures generally compatible; measures to achieve NLR of 25, 30, or 35 dB must be incorporated into design and construction of structure. (1) Where the community determines that residential or school uses must be allowed, measures to achieve outdoor to indoor Noise Level Reduction (NLR) of at least 25 dB and 30 dB should be incorporated into building codes and be considered in individual approvals. Normal residential construction can be expected to provide a NLR of 20 dB, thus, the reduction requirements are often stated as 5, 10 or 15 dB over standard construction and normally assume mechanical ventilation and closed windows year round. However, the use of NLR criteria will not eliminate outdoor noise problems. (2) Measures to achieve NLR 25 dB must be incorporated into the design and construction of portions of these buildings where the public is received, office areas, noise sensitive areas or where the normal noise level is low. (3) Measures to achieve NLR of 30 dB must be incorporated into the design and construction of portions of these buildings where the public is received, office areas, noise sensitive areas or where the normal noise level is low. (4) Measures to achieve NLR 35 dB must be incorporated into the design and construction of portions of these buildings where the public is received, office areas, noise sensitive areas or where the normal level is low. (5) Land use compatible provided special sound reinforcement systems are installed. (6) Residential buildings require an NLR of 25. (7) Residential buildings require an NLR of 30. (8) Residential buildings not permitted. Note: 65 dB is generally identified as the threshold level of aircraft noise which is significant. Table 1 of 14CFR150

What is a YDNL? Aircraft noise is represented with a sound level metric referred to as a day-night sound level (DNL) DNLs are 24-hour sound levels in decibels (dB) for which a ten dB penalty is applied to each sound level event between 10:00 p.m. and 7:00 a.m. A YDNL is a 365-day (i.e., annual) average of daily DNL values Note: In this example, there are 27 operations between 6 a.m. and 7 a.m. With the nighttime penalty applied, 270 operations are modeled.

What Historical Measures Have Been Taken to Reduce Noncompatible Land Uses in the Vicinity of ATL? Initial reviews were performed in 1978 when the City of Atlanta sponsored an Airport Noise Abatement and Land Use Compatibility Study Since that time, the DOA has prepared several updates to ATL’s NEMs

FAA Requirements for NEMs NEMs must identify noncompatible land uses as of the date of submission Forecast conditions are to be representative of conditions at least five years in the future NEMs are to be prepared in consultation with states and public/planning agencies whose area, or any portion of whose area, of jurisdiction is within the 65 YDNL contour Airport operators must certify that interested parties have had an adequate opportunity to submit their views, data and comments on the Draft NEMs

FAA Requirements for NEMs (Continued) NEMS must also provide continuous contours depicting YDNLs of 65, 70 and 75 dB Must identify runway locations, flight tracks, an airport’s boundary, noncompatible land uses and the location of noise sensitive buildings (e.g., schools, hospitals) Estimates of the number of people residing within the YDNL 65, 70 and 75 dB contours must also be prepared

How Were the 2017/2022 NEMs Prepared? The Draft NEMs were prepared using Version 2C Service Pack 2 of FAA’s Aviation Environmental Design Tool (AEDT) The AEDT is a computer software system that models aircraft performance in space and time to derive estimates of aircraft noise A detailed discussion of the ATL-specific data that was input to the AEDT is provided in the report entitled Draft Noise Exposure Maps Years - 2017 and 2022. Available for review on the internet, here at the Tech Campus and at the College Park and Forest Park branch libraries.

Year 2017 NEM

Year 2022 NEM

Comparison: 2017 and 2022 By 2022 the number of aircraft operations (arrivals and departures) is forecast to increase by 30 operations a day There should be a notable decrease in the contour lobes that are primarily due to departures and an increase in the lobes that are primarily due to arrivals Decrease Decrease Increase Decrease Decrease Increase Decrease Increase Increase Dashed Contours are for Year 2022

Why Do the Contours Change? The change in aircraft departure noise by 2022 is primary due to Delta Air Lines intention to phase out their MD-88s (to be replaced with A321s and CS100s) Sound Exposure Level (SEL) 65, 70 and 75 dB Contours Arrival Departure MD-88 A321 CS100

Why Do the Contours Change? The change is also due to the replacement of FedEx DC10s/A306s with B763s Sound Exposure Level (SEL) 65, 70 and 75 dB Contours Arrival Departure DC10 A306 B763

Coordination Prior to tonight’s Workshop: June 15th – Presentation to the Atlanta Airport Affairs Committee June 28th – Scoping session with elected officials (invitees: officials of College Park, East Point, Forest Park, Hapeville, Clayton County and Fulton County) June 29th – Open house/scoping session with the public

Purpose of Tonight’s Public Information Workshop This workshop is being held to: Present the Draft Year 2017 and 2022 NEMs Provide you with an overview of the requirements for and the process of developing the NEMs Afford you the opportunity to comment on the correctness and adequacy of the Draft NEMs and descriptions of forecast aircraft operations at ATL

Comments Submit in writing tonight (comment box) Provide verbally to court reporter Mail to Walter Vinson, Public Program Coordinator (address on comment sheet) Email to NEMcomments@kbenv.com Comments are due November 10, 2017 and will be included in the Final Noise Exposure Map document.

Next Steps Agency/Public Comment Period……Sept 28th – Nov 10th Finalize NEMs and Report................Nov 13th – Dec 1st Submit to FAA………………………...Dec 4th Again, comments may be: Submitted in writing tonight (comment box) Provided verbally to the court reporter Mailed to Walter Vinson, Public Program Coordinator (address on comment sheet) Emailed to NEMcomments@kbenv.com (also on comment sheet) Comments are due November 10, 2017

Thank you for attending tonight’s workshop. DOA staff and their representatives are here to answer questions you may have regarding the information in this presentation and/or the Draft Year 2017 and 2022 NEMs This presentation will be repeated at 7 p.m. Aerials that depict the aircraft noise contours are available for your review in the lobby Questions?