NASA Technical Reports Server (NTRS) : Annoyance pdf

NASA Technical Reports Server (NTRS) : Annoyance

More Book Details

Description of the Book:

A laboratory study was conducted to investigate the annoyance effects of multiple aircraft noise exposure in which 250 subjects judged the annoyance of half-hour periods of airplane noise simulative of typical indoor home exposures. The variables of the aircraft noise exposure were the peak noise level of flyovers, which was constant within each period, and the number of flyovers. Each subject judged 5 of the possible 25 factorial combinations of level and number. Other variables investigated included the experience of the test subjects in making annoyance judgments and their home exposure to airplane noise. The annoyance judgments increased with both noise level and number of flyovers. The increased annoyance produced by doubling the number of flyovers was found to be the equivalent of a 4 to 6 db increase in noise level. The sensitivity of the subjects to changes in both noise level and number of flyovers increased with laboratory experience.

Although the means of the annoyance judgments made in the laboratory were found to decrease with the subjects’ home exposure to aircraft noise, the subjects’ sensitivities to changes in both level and number were unaffected by their home exposure

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 8/1/1980
• Year: 1980
• Book Topics/Themes: NASA Technical Reports Server (NTRS), AIRCRAFT NOISE, HUMAN FACTORS ENGINEERING, HUMAN REACTIONS, NOISE POLLUTION, NOISE INTENSITY, NOISE REDUCTION, PSYCHOACOUSTICS, URBAN PLANNING, Powell, C. A

An excerpt captured from the PDF book