Sensitivity of the level weighted population (LWP) noise impact scale to uncertainty in source noise levels and distances to receiving property

Abstract

Integral expressions were formulated and solved for the LWP attributable to point or line sources in terms of source noise level and impacted-area dimensions. Expressions were then derived for relative error in LWP due to uncertainty limits on source noise level and source-to-receiver distance. From these results, expected errors in LWP for variable standard deviations in source noise levels or distances were calculated. In the case of multiple sources, the average expected error in LWP for both equally distributed and normally distributed source levels, and source-to-receiver distances were estimated. This paper summarizes the study results.