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Comprehensive Review of Collected Noise Information at Barrier Sites. Final rept.
| 题名： | Comprehensive Review of Collected Noise Information at Barrier Sites. Final rept. |
| 作者： | Wayson-R.L.; MacDonald-J.M.; El-Aassar-A.; Chua-C.B. |
| 关键词： | *Highways-; *Noise-reduction; *In-situ-measurements; *Barriers-; *Florida-.;Noise-measurement; Investigations-; Design-analysis; Traffic-noise. |
| 摘要： | This report describes the results of a detailed analysis of in-situ measurements for 19 noise barriers in the State of Florida. This report is a continuation of work presented in two previous Florida Department of Transportation (FDOT) reports, which are described in the introduction. This report investigates, in greater detail, the substantial database produced by this project. The investigation evaluated spectral differences of predicted and measured ground effects and high frequency deviations between federal prediction methods compared to measured data. This work also produced custom software that provided a visualization of the formation of shadow zones behind existing barriers. In addition, new empirical methods were developed to estimate the length of shadow zones behind highway noise barriers. |
| 报告类型： | 科技报告 |
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