A telephone survey was conducted to assess the effects of cessation of late-night over-flights on commumities to the east of Los Angeles International airpot. A total of approximately 1400 interviews were conducted before, immediately after, and a month after the cessation of flights. No appeciable effects were observed in terms of reduction of annoyance, or lessened speech and sleep interference. However large, consistent and statistically significant differences in response patterns as a function of level of noise exposure were observed both before and after cessation of late-night flights. These results can be accounted for either in terms of the relatively small decrease in 24-hour exposure than the elimination of flights between 23,000 and 06.00 hours represented, or in the light of a parallel study which failed to show recovery in the abnormal steep patterns of long term area residents. The significance of these data for such issues as the proper weighting of nocturnal noise or the appropriate weighting for numbers of events depends on which of the two alternative interpretations is favored.

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  • Corporate Authors:

    Academic Press Incorporated

    Berkeley Square House, Berkeley Square
    London W1,   England 
  • Authors:
    • FIDELL, S
    • JONES, G
  • Publication Date: 1975-10

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Filing Info

  • Accession Number: 00155920
  • Record Type: Publication
  • Source Agency: Massachusetts Institute of Technology
  • Files: TRIS
  • Created Date: Sep 20 1977 12:00AM