Background report on outdoor-indoor noise reduction calculation procedures employing the exterior wall noise rating (EWNR) method /
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| Other Authors: | , |
| Format: | Government Document Book |
| Language: | English |
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Washington :
Dept. of Transportation, Federal Highway Administration, Office of Development,
1978.
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| Series: | Report - Federal Highway Administration ; FHWA-TS-77-220
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| Item Description: | Prepared by Wyle Research. "March 1978." Cover title: Highway noise. |
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| Physical Description: | v, 53 pages : illustrations ; 28 cm. |
| Bibliography: | Includes bibliographical references. |