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CC BY V4.0, Open Access
Journal article
A large-scale validation study of aircraft noise modeling for airport arrivals
The Journal of the Acoustical Society of America, Vol.155(3), pp.1928-1949
03/01/2024
PMID: 38466043
Appears in Aviation Sustainability Center (ASCENT)
Abstract
In the U.S., the Federal Aviation Administration's Aviation Environmental Design Tool (AEDT) is approved to predict the impacts of aircraft noise and emissions. AEDT's critical role in regulatory compliance and evaluating the environmental impacts of aviation requires asking how accurate are its noise predictions. Previous studies suggest that AEDT's predictions lack desired accuracy. This paper reports on a large-scale study, using 200 000 flight trajectories paired with measured sound levels for arrivals to Runways 28L/28R at San Francisco International Airport, over 12 months. For each flight, two AEDT studies were run, one using the approved mode for regulatory filing and the other using an advanced non-regulatory mode with exact aircraft trajectories. AEDT's per aircraft noise predictions were compared with curated measured sound levels at two locations. On average, AEDT underestimated LAmax by -3.09 dB and SEL by -2.04 dB, combining the results from both AEDT noise-modeling modes. Discrepancies appear to result from limitations in the physical modeling of flight trajectories and noise generation, combined with input data uncertainties (aircraft weight, airspeed, thrust, and lift configuration) and atmospheric conditions.
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Details
- Title
- A large-scale validation study of aircraft noise modeling for airport arrivals
- Creators
- Thomas C. Rindfleisch - Stanford Univ, Dept Aeronaut & Astronaut, Stanford, CA 94305 USAJuan J. Alonso - Stanford Univ, Dept Aeronaut & Astronaut, Stanford, CA 94305 USADonald C. Jackson - Stanford Univ, Dept Aeronaut & Astronaut, Stanford, CA 94305 USABrian C. Munguia - Stanford UniversityNicholas W. Bowman - NASA, Instrument Flight Software Grp, Jet Prop Lab, Pasadena, CA 91011 USA
- Publication Details
- The Journal of the Acoustical Society of America, Vol.155(3), pp.1928-1949
- Academic Unit
- Aviation Sustainability Center (ASCENT); Noise
- Publisher
- Acoustical Soc Amer Amer Inst Physics
- Number of pages
- 22
- Grants
- 13-C-AJFE-SU-022, Federal Aviation Administration (United States, Washington) - FAA
- Grant note
- SFO Aircraft Noise Office - FAA Aviation Sustainability Center (ASCENT) 13-C-AJFE-SU-022 / Federal Aviation Administration10.13039/100006282
- Identifiers
- 99901140739301842
- Language
- English
- Resource Type
- Journal article