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Noise Barrier Attenuation: Field Experience.

PB266299

Publication Date	1976
Personal Author	Simpson, M. A.
Page Count	108
Abstract	A noise measurement program was undertaken at ten field sites at which a variety of noise barriers have been constructed, in order to compare measured values of barrier attenuation with analytical projections. Barrier types included in the study were concrete, masonry and wooden walls, and berms of various shapes. The measured attenuation values were compared with attenuations predicted by the Kurze-Anderson Infinite Line Source Model of barrier attenuation. The analysis indicated that the model predicts barrier attenuation equally well at all locations behind the barrier. The model works best for thin vertical walls, while the largest underpredictions generally occur for berms.
Keywords	Noise reduction Highways Barriers Noise pollution Measurement Transportation noise Environmental surveys Sites Comparison Attenuators Mathematical models Mathematical prediction Structural design Noise barriers
Source Agency	Federal Highway Administration
NTIS Subject Category	68B - Noise Pollution & Control 50A - Highway Engineering
Corporate Authors	Bolt Beranek and Newman, Inc., Arlington, VA.; Federal Highway Administration, Washington, D.C.
Document Type	Technical Report
Title Note	Final rept.
NTIS Issue Number	197715
Contract Number	DOT-FH-11-8287

Noise Barrier Attenuation: Field Experience.

Noise Barrier Attenuation: Field Experience.
PB266299

Publication Date	1976
Personal Author	Simpson, M. A.
Page Count	108
Abstract	A noise measurement program was undertaken at ten field sites at which a variety of noise barriers have been constructed, in order to compare measured values of barrier attenuation with analytical projections. Barrier types included in the study were concrete, masonry and wooden walls, and berms of various shapes. The measured attenuation values were compared with attenuations predicted by the Kurze-Anderson Infinite Line Source Model of barrier attenuation. The analysis indicated that the model predicts barrier attenuation equally well at all locations behind the barrier. The model works best for thin vertical walls, while the largest underpredictions generally occur for berms.
Keywords	Noise reduction Highways Barriers Noise pollution Measurement Transportation noise Environmental surveys Sites Comparison Attenuators Mathematical models Mathematical prediction Structural design Noise barriers
Source Agency	Federal Highway Administration
NTIS Subject Category	68B - Noise Pollution & Control 50A - Highway Engineering
Corporate Authors	Bolt Beranek and Newman, Inc., Arlington, VA.; Federal Highway Administration, Washington, D.C.
Document Type	Technical Report
Title Note	Final rept.
NTIS Issue Number	197715
Contract Number	DOT-FH-11-8287