ORNAMENT: ONTARIO ROAD NOISE ANALYSIS METHOD FOR ENVIRONMENT AND TRANSPORTATION: TECHNICAL DOCUMENT

Background and description of a procedure to predict road traffic noise based on road traffic parameters, receiver description and topographical features. The Ministry of the Environment requires the use of this method to assess the noise impact from existing roadways on planned residential land uses, to assess the noise impact of roadway projects, and to establish the ambient noise level criterion for approval of new noise sources and for complaint investigation. Based on a model developed by the U.S. Federal Highway Administration, ORNAMENT evaluates a reference sound level and adjusts if by a series of adjustments accounting for the gradient of the roadway, the pavement surface, the distance between the road and the receiver, the topography and any shielding obstructing the sound path. It is valid from 15 m to about 500 m, with decreasing accuracy after that distance. The method does not apply to traffic volumes less than 40 vehicles per hour and to speeds less than 50 km/h.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/ISBN077296376
• Corporate Authors:

  Noise Assessment and Systems Support Unit

  Toronto, ONo,   Canada 
• Authors:
  • Schroter, V
  • Chiu, C
• Publication Date: 1989

Media Info

• Pagination: 77 p.

Subject/Index Terms

• TRT Terms: Analysis; Noise control; Noise sources; Residential areas; Residential streets; Sound level; Topography; Traffic noise
• Identifier Terms: U.S. Federal Highway Administration
• Uncontrolled Terms: Complaints
• Old TRIS Terms: Ornament; Residential roads
• Subject Areas: Environment; Highways;

Filing Info

• Accession Number: 00602823
• Record Type: Publication
• Source Agency: National Technical Information Service
• ISBN: ISBN-0-7729-6376
• Files: TRIS
• Created Date: Dec 31 1990 12:00AM