HIGHWAY NOISE REDUCTION BY BARRIER WALLS

THIS REPORT REVIEWS NOISE ATTENUATION BY BARRIER WALLS AND PRESENTS GRAPHS THAT CAN BE USED BY THE HIGHWAY ENGINEER TO CALCULATE THE REDUCTION OF TRAFFIC NOISE DUE TO BARRIER WALLS. AS THE EFFECTIVE HEIGHT OF AN IMPERMEABLE (ACOUSTICALLY OPAQUE) WALL INCREASES, THE DISTANCE FROM THE WALL TO THE RECEIVER AND THE DISTANCE FROM THE WALL TO THE SOUND SOURCE DECREASES; THE ATTENUATION OF THE SOUND INCREASES. NOISE REDUCTION DUE TO BARRIER WALLS IS RELATED TO THE WEIGHT OF THE WALL (EXPOSED SURFACE) AND THE FREQUENCY OF THE SOUND. LIGHTWEIGHT, POROUS MATERIALS INCREASE THEIR TRANSMISSION LOSSES WHEN PAINTED OR PLASTERED ON AT LEAST ONE SIDE. FEHR'S EQUATION FOR NOISE REDUCTION DUE TO A BARRIER WALL IS RECOMMENDED FOR PURPOSES OF ENGINEERING EVALUATIONS. /AUTHOR/

  • Supplemental Notes:
    • RES REPT 166-3
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  United States  76011
  • Authors:
    • Young, M F
    • Woods, D L
  • Publication Date: 1971-7

Media Info

  • Pagination: 96 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00203627
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Jun 5 1972 12:00AM