AAAE CM Module 4

National Environmental Policy Act of 1969 (NEPA) - Correct answer-catalyst for public awareness and response to aircraft noise issues, required assessment of noise effects for airports undertaking major projects Aviation Noise Abatement Policy (ANAP) - Correct answer-Secretary of Transportation and FAA adopted. clarified FAAs responsibility to reduce aircraft noise, abate the impact of noise on populated areas and attain compatible land use adjacent to airports FAR Part 36-Certificated Airplane Noise Levels - Correct answer-mandated change in design inturbojets to help eliminate engine noise,Stages 1-4 with 4 being quietest, aircraft over 12,500# must meet Stage 4 Airport Safety and Noise Abatement Act of 1979 (ASNA) - Correct answer-basis for noise abatement planning at airports, required FAA to establish requirements to simplify and standardize noise compatibility planning and programs Part 150 Land Use Compatability - Correct answer-adopted as a result of ASNA, noise control achieved through compatible land uses around airport, developed Noise Exposure Maps (NEM) & Noise Compatibilty Programs (NCP) Airport Noise and Compatibility Act of 1990 (ANCA) - Correct answer-airports prohibited from adopting overly restrictive or punitive anti-noise ordinances, created Part 161 Notice and Approval of Airport Noise and Access Restrictions-placed a cap on number of Stage 2 aircraft over 75,000lbs maximum takeoff weight allowed to operate in the US 3 Goals of ANCA - Correct answer-1. phase out noisier aircraft 2. place limits on local user restrictions 3. establish non-restrictive noise abatement and land use actions Day/Night Average (DNL) - Correct answer-standard used for forecasting cumulative noise exposure under Part 150 studies, a 24-hour average sound level, with 10 decibel penalty from midnight to 7am and 10pm to midnight, noise is averaged every second over a 24hour period Integrated Noise Model (INM) - Correct answer-determines DNL noise contours area for a specific mix of aircraft and produces maps used for land compatibility Aviation Environmental Design Tool (AEDT) - Correct answer-replced INM, software that models aircraft fuel consumption, emissions, noise, and air quality consequences 75 DNL - Correct answer-FAA recommends airport own all land within the 75 DNL contour