Acoustical characteristics of Danish road surfaces

The present report is a milestone of a project on the acoustic characteristics of Danish road surfaces in the DRI-DWW noise abatement program.The basis of the analyses is data from CPX-measurements made in 2004 and 2005 by a Dutch consultant on request from DWW and measurements of vehicle pass-by noise and of road sur-face texture carried out by DRI and others.The report contains a table of typical ranges of CPXL-values for vari-ous types of road surfaces. CPXL-levels at older surfaces were higher than the levels on new surfaces and for dense asphalt concrete an increase in CPXL-value of 1 dB after 6 - 9 years could be identified.There was a fairly straight 1:1 relation between CPXL and the pass-by level Lveh from passenger cars with CPXL being 20 dB higher than Lveh at 7.5 m distance and a height of 1.2 m.There was a trend for an overall increase in CPXL of 1 - 2 dB when the nominal maximum aggregate size increased from 8 mm to 11 mm.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/13955530
• Authors:
  • KRAGH, J
  • ANDERSEN, B
  • BENDTSEN, H
• Publication Date: 2006

Language

• English

Media Info

• Pagination: 45
• Serial:
  • ACOUSTICAL CHARACTERISTICS OF DANISH ROAD SURFACES
  • Issue Number: 38
  • Publisher: Danish Road Directorate
  • ISSN: 1395-5530

Subject/Index Terms

• TRT Terms: Environment; Noise; Sound
• Geographic Terms: Denmark
• ITRD Terms: 8028: Denmark; 2455: Environment; 2492: Noise; 6748: Sound
• Subject Areas: Environment; Materials; I20: Design and Planning of Transport Infrastructure; I30: Materials;

Filing Info

• Accession Number: 01086758
• Record Type: Publication
• Source Agency: Danish Road Institute
• Files: ITRD
• Created Date: Jan 29 2008 8:40AM