The noise effects programs objective is to develop aircraft noise criteria and noise reduction methods for achieving greater community and passenger acceptance of air transportation systems. The approach consists of laboratory tests to subjectively evaluate the properties of aircraft-generated noise that are responsible for causing annoyance and field surveys to study the broader problems of community and passenger acceptability. The program is organized into two major thrusts: community acceptance and passenger acceptance. The community acceptance includes subjective response studies of single and multiple aircraft overflights as well as longer term community noise exposure. Emphasis is on the development of units and indices which accurately quantify annoyance. The passenger acceptance program includes studies to determine acceptably levels of interior noise and vibration for speech intelligibility and comfort of crew and passengers. Selected results from several recent studies are presented to indicate the nature, scope, and methods of the research program.

  • Supplemental Notes:
    • Conf-Presented at the Intern. Congr. On Noise as a Public Health Probl. - Biol. And Behavioral Effects, Freiburg, West Ger., 25-29 Sep. 1978.
  • Corporate Authors:

    Langley Research Center

    National Aeronautics and Space Administration
    Hampton, VA  United States  23665
  • Authors:
    • Stephens, D G
    • Powell, C A
  • Publication Date: 1978-9

Media Info

  • Pagination: 16 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00186578
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-TM-78776
  • Files: TRIS
  • Created Date: Feb 27 1979 12:00AM