Where noise sensitive land uses exist on both sides of a highway, parallel barriers may be necessary. One problem associated with parallel vertical barriers (one on each side of a highway) concerns the sound reflected back and forth between the barriers. One way to restore single barrier effectiveness, in cases where two parallel barriers are needed, is to apply sound-absorbing material to the barrier faces. Studies have suggested that barrier faces sloped away from the highway could eliminate or reduce the reverberant build up of sound energy that occurs between vertical barriers. The potential benefits of sloped barriers over absorptive barriers prompted a study to determine their feasibility and effectiveness for a section of highway along the Harbor Tunnel Thruway in Baltimore City, Maryland.

Media Info

  • Pagination: p. 509-512

Subject/Index Terms

Filing Info

  • Accession Number: 00193839
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: May 26 1979 12:00AM