ACOUSTICAL PERFORMANCE OF NOISE BARRIERS - HIGHWAY 401 BETWEEN KEELE AND DUFFERIN STREETS

This report presents an evaluation of the acoustical performance of highway noise barriers erected on opposite sides of highway 401, between Keele and Dufferin streets. The average barrier insertion loss measured in the backyards adjacent to the barriers was about 6 to 8 dba. Sound level reductions behind one of two rows of houses were approximately 2 to 3 dba. A good agreement was obtained between the average measured and the average predicted insertion losses. Sound level measurements indicated that the construction of the north-side barrier had no adverse effects on the sound levels measured on the south side of the highway. No definite difference between the acoustical effectiveness of evercrete and steel barrier materials could be determined due to the statistically insignificant differences in barrier performance. (Author/TRRL)

• Corporate Authors:

  Ontario Ministry of Transportation & Communic, Can

  1201 Wilson Avenue
  Downsview, Ontario M3M 1J8,   Canada 
• Authors:
  • Blaney, C T
  • Krawczyniuk, R
  • CUSENS, A R
• Publication Date: 1982-12

Media Info

• Features: Figures; References; Tables;
• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Beams; Building codes; Concrete; Cracking; Deflection; Deformation; Economic efficiency; Failure; Fatigue (Mechanics); Fatigue tests; Forecasting; Fracture mechanics; Material reinforcement; Measurement; Noise barriers; Performance; Prestressing; Reinforcing materials; Samples; Shear strength; Sound; Sound level; Steel; Stirrups; Strain (Mechanics); Test procedures; Testing; Welding
• Uncontrolled Terms: Concrete beams; Decreases; Efficiency
• Geographic Terms: Canada
• Old TRIS Terms: Failure theory; Prestressed beams; Strains
• ITRD Terms: 8018: Canada; 4755: Concrete; 9009: Decrease; 5911: Efficiency; 6136: Measurement; 2886: Noise barrier; 6748: Sound; 6747: Sound level; 4542: Steel
• Subject Areas: Design; Economics; Environment; Highways; Law; Society;

Filing Info

• Accession Number: 00379869
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Report/Paper Numbers: Monograph
• Files: ITRD, TRIS
• Created Date: Feb 29 1984 12:00AM