Multi-level roadway noise abatement
Subtitle: final report, Research Project GC 8286, Task 39, Traffic Noise--Two-level Structures
By: by James D. Chalupnik (Washington State Transportation Center) ; prepared for Washington State Transportation Commission, Department of Transportation and in cooperation with U.S. Department of Transportation, Federal Highway Administration.
Contributors: Washington (State). Dept. of Transportation.; United States. Federal Highway Administration.; Washington State Transportation Center.
Publisher: Washington State Dept. of Transportation, Washington State Transportation Commission in cooperation with the U.S. Dept. of Transportation, Federal Highway Administration
Published: 1992
Place of publication: [Olympia, Wash.]
Language: eng
Number of pages: 31
Subjects: Noise control -- Washington (State) -- Seattle.; Traffic noise -- Washington (State) -- Seattle.; Noise barriers -- Washington (State) -- Seattle.; Elevated highways -- Washington (State) -- Seattle.
Notes: "April 1992."

"WA-RD 266.1"--Cover.

Includes bibliographical references (p. 31).