Harrison, R. T., Clark, R. N., & Stankey, G. H. (1980). Predicting
impact of noise on recreationist. San Dimas, CA: USDA
Forest Service Equipment Development Center.
Abstract
Presents a method for predicting the impact of noise on outdoor recreation called the System for the Prediction of Acoustic Detectability (SPREAD). SPREAD attempts to address the phenomenon of detectable noise vs. measured ambient noise levels with a formula (and worksheets) for predicting sound levels for the purpose of deciding what is appropriate/inappropriate acoustic impact in recreation sites.
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