CLASSIFICATION OF LOW NOISE ROAD SURFACING

An increasingly important aspect of the development of low noise road surfaces is the definition and certification of its acoustic properties. In the UK, a number of complementary methods are being developed for such assessments. One of the most important of these is the noise test attached to the HAPAS (Highway Authorities Products Approval Scheme) type approval system. This test method is based upon the ISO standard Statistical Pass-by (SPB) method and results in a classification rating related to a standard surfacing. To supplement this test and to allow the acoustic properties of road surfaces to be determined at any location, a system based upon the Close-proximity (CPX) measurement procedure has been developed. This is carried out using the TRITON system developed by TRL. This system is used for measuring the rolling noise of specified test tyres at suitable speeds. Combining the results of several tyres allows a representative noise classification measure to be determined. In addition surrogates for direct noise measurements are under development with high-speed laser-based texture measurement systems. These systems are being used to routinely survey the high-speed road network and could underpin future noise maps. This paper describes the development of these tests and the relationships between the results obtained with each. (A) For the covering abstract see ITRD E113232.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/980655414
• Corporate Authors:

  CONGRESS SECRETARIAT

  VOORWEG 105-A
  ZOETERMEER,   Netherlands  NG 2715
• Authors:
  • PHILLIPS, S M
  • KOLLAMTHODI, S
  • Morgan, P A
• Conference:
  • INTER-NOISE 2001 - ABSTRACTS FROM INTERNATIONAL CONGRESS AND EXHIBITION ON NOISE CONTROL ENGINEERING
  • Location: THE HAGUE , Netherlands
  • Date: 2001-8-27 to 2001-8-30
• Publication Date: 2001

Language

• English

Media Info

• Features: References;
• Pagination: p. 509-14

Subject/Index Terms

• TRT Terms: Classification; Conferences; Measurement; Noise; Smoothness; Sound; Surfaces
• Geographic Terms: United Kingdom
• ITRD Terms: 8513: Classification; 8525: Conference; 3071: Evenness; 6136: Measurement; 2492: Noise; 6748: Sound; 6438: Surface; 8119: United Kingdom
• Subject Areas: Data and Information Technology; Environment;

Filing Info

• Accession Number: 00927155
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 9-806554-1-4
• Files: ITRD
• Created Date: Jul 8 2002 12:00AM