Field Study of a Variable-Height Highway-Noise Barrier.

机译：变高速公路隔声屏障的现场研究。

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This study describes the design,construction,and evaluation of a variable-height highway-noise barrier. The barrier was constructed along a 1000-ft-long segment of Interstate 93in Andover,Massachusetts. A test plan was prepared,and measurements were taken at a number of points behind the barrier and at an adjacent open site by personnel using the DOT-TSC Mobile Noise Laboratory. Data were collected over a series of eight tests,each extending over a two-or three-day period,to determine the noise reduction provided by barriers of different heights with reflecting and absorbing surfaces. Test results are presented and compared with predictions. Based on the data,it concluded that existing design charts are inadequate for predicting the performance of highway-noise barriers. The design-chart corrections for finite-barrier length is believed to be too large.

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作者
manning, j. e. blair, c. n.;
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年度 1978
页码 1-74
总页数 74
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
highways; noise reduction; barrierssound transmission; field tests; experimental design; construction; noise pollution;

机译：高速公路;降噪;障碍传播;现场试验;实验设计;施工;噪声污染;

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Field Study of a Variable-Height Highway-Noise Barrier.

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