PRACTICE AND PRINCIPLE IN ENVIRONMENTAL NOISE RATING

The report reviews methods of noise level evaluation and also progress in standardization of such methods in the UK, USA and ISO. The scale of noise measurement on which such progress is possible is the a-weighted equivalent continuous sound level, LEG. This is not an ideal quantity though its physical properties are attractively simple. The principles which underlie the concept of a unified noise index are outlined and a brief account is given of possible future developments. Experimental work will be needed to determine the direction which these should take, bearing in mind that there are conflicting factors of complexity and faithfulness to the purpose, that is, to represent community reaction in numerical terms. It is argued that the scientific principles can best be studied in a programme of laboratory experiments, whilst the determination of acceptability levels msut entail field work and surveys.

• Corporate Authors:

  National Physical Laboratory, England

  Queens Road
  Teddington, Middlesex,   England 
• Authors:
  • Robinson, D W
• Publication Date: 1977-4

Media Info

• Features: References;
• Pagination: 20 p.

Subject/Index Terms

• TRT Terms: Aircraft; Continuous structures; Environment; Evaluation and assessment; Indexes (Information management); Measurement; Methodology; Public participation; Social values; Sound level; Spectrophotometers; Surveys; Traffic
• Old TRIS Terms: Community values
• Subject Areas: Aviation; Highways; Operations and Traffic Management; Society; Vehicles and Equipment;

Filing Info

• Accession Number: 00168125
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Acoustics Rpt. 81 Monograph
• Files: TRIS
• Created Date: Jun 28 1978 12:00AM