Background report on outdoor-indoor noise reduction calculation procedures employing the exterior wall noise rating (EWNR) method
By: by Gary E. Mange, Steven R. Skale, Louis C. Sutherland.
Contributors: Skale, Steven R.; Sutherland, L. C.; United States. Federal Highway Administration. Office of Development.
Series: Report - Federal Highway Administration ; FHWA-TS-77-220
Publisher: Dept. of Transportation, Federal Highway Administration, Office of Development
Published: 1978
Place of publication: Washington
Language: eng
Number of pages: 53
Subjects: Noise -- Measurement.; Noise control.
Notes: Prepared by Wyle Research.

"March 1978."

Includes bibliographical references.