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Parallel barrier effectiveness under free-flowing traffic conditions. Final report. by Fleming, Gregg G. is a nonfiction available to read on EtoBox.

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Presents the results of a measurement study performed at a highway noise barrier site located along Interstate 495 in Montgomery County, Maryland. The objective of the study was to measure the degradation in acoustic performance of a highway noise barrier due to the close proximity of a parallel barrier on the opposite side of the roadway. The test site selected for measurements consisted of a contiguous arrangement of two parallel reflective noise barriers followed by a single noise barrier. Five-minute, energy-averaged, A-weighted noise levels were computed from data measured simultaneously at identical heights and offset positions behind the single and parallel barrier arrangements. A comparison of the measured and predicted results is presented

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Author

Fleming, Gregg G.

Publisher

1992.

Published

1992

Language

EN

Category

nonfiction