Community Response to High-Energy Impulsive Sounds An Assessment of the Field Since 1981 (1996) / Chapter Skim
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1 Introduction
1 Introduction
Pages 1-5
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Recommend modifications to the 1981 procedures and predictive analytic equations, based on the new data; (4) Recommend research required to eliminate gaps in the data needed to predict public response with increased confidence; and (5)
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Although a glossary that defines these terms may be found in Appendix C, the following table may help alert readers to their abbreviations and symbols. 1 The definitions, abbreviations, letter symbols, and xxxunits for the environmental noise metrics referred to in this report may be found in ANSI standards S1.1-1994, S12.4-1986, S12.9-1988, and S12.40-1990.
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found enough quantitative information about 161 social survey observations to permit his well-known synthesis of a descriptive dosageresponse relationship for nonimpulsive noises between the A-weighted Day-Night Average Sound Level (ADNL) and the prevalence of a consequential degree of self-reported annoyance in urban settings.
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selected a time-weighted average of sound pressure levels as a predictor variable for its dosage-response relationship, and a consequential degree of self-described annoyance with noise exposure as the predicted variable. The recommended relationship is neither a theoretical nor a statistically derived fit to these data points, but rather a negotiated consensus about a reasonable interpretation of information then available.2 The dosage-response relationship recommended by the 1981 working group was intended primarily to aid analysis of environmental effects of high-energy impulsive sounds on communities.
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It also recommends research intended to further clarify the relationship between highenergy impulsive sound exposure and community response. The report includes a glossary of environmental acoustical measurement terms.
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