Noise Wall Overhang Design [Factsheet]

Sperry, Benjamin R.; Staley, Blake; Khoury, Issam; Cubick, Karel L.; Ruggles, Bill; Hren, Jonathan

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Noise Wall Overhang Design [Factsheet]

2019-04-01
By Sperry, Benjamin R. ; Staley, Blake ; Khoury, Issam ; ...

File Language:

English

Details

Creators:

Sperry, Benjamin R. ; Staley, Blake ; Khoury, Issam ; Cubick, Karel L. ; Ruggles, Bill ; Hren, Jonathan
Corporate Creators:

Ohio University. Ohio Research Institute for Transportation and the Environment (ORITE) ; ms consultants, inc
Corporate Contributors:

Ohio Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Acoustic Properties Air Quality Cost Effectiveness Design Highways Literature Reviews Noise Barriers Walls
Publication/ Report Number:

FHWA/OH-2019-18
Resource Type:

Brief
Geographical Coverage:

United States;Ohio
Corporate Publisher:

Ohio Research Institute for Transportation and the Environment
Abstract:

One potential option to achieve noise reduction at a lower cost is to add a roadway-side overhang component to the top of an existing or proposed noise wall. Broadly, a noise wall “overhang” modification is an additional structural element or fixture attached along the top edge of a traditional or “plain-top” noise wall. The acoustical benefit of an overhang is that the distance traveled between the traffic noise source and a listener behind the wall is increased relative to a traditional plain top wall. Most applications of noise wall overhang designs are characterized by the shape that is assumed by the wall’s cross-section after the modification is deployed. For example, an overhang design in which the overhang is at a 90° angle with respect to the vertical wall face is known as a “T-Top” noise barrier while any overhang with an angle between 0° and 90° is termed a “Y-Top” noise barrier.
Format:

PDF
Funding:

SJN 135774
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:090118ee0f934e59088de7e4a7adcf8723d5e8945c0b1f0e1c50ecca1a6e9edbe03210a0cc7e068318f211a0bb1bec8a104dea70d3c16b8a34338ecab8f1c3c8
Download URL:

https://rosap.ntl.bts.gov/view/dot/66168/dot_66168_DS1.pdf
File Type:

[PDF - 312.96 KB ]

File Language:

English

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