HIGH PERFORMANCE ACOUSTIC BARRIERS IN THE UK

The article describes high-performance acoustic barriers, how they function, what has inhibited their use in the past, and why they are now being used increasingly in the UK and the European Union (EU). Both in the UK and in the Netherlands, surveys indicated that at least 60% of those questioned consider noise pollution to be their main concern about motorway projects. In contrast to reflective barriers, high-performance barriers absorb the noise that hits them. They have high aesthetic quality and mechanical performance, and are designed for long life, so that they have low maintenance requirements. Both metal and timber absorptive barriers incorporate an absorptive mineral wool mattress. Other absorptive barrier types are based on precast concrete structural panels or wood fibre aggregate. The use of high-performance barriers in the UK has been inhibited because of: (1) the relatively high permissible noise levels compared with other EU countries; (2) the absence of a programme to reduce noise levels on existing roads; (3) the Land Compensation Act 1993; (4) the standard method for calculating road noise; and (5) the perceived high cost of high-performance barriers. Some possible changes in noise standards are outlined, that could encourage the wider use of modern high-performance noise barriers.

  • Availability:
  • Corporate Authors:

    INSTITUTION OF HIGHWAYS & TRANSPORTATION

    6 ENDSLEIGH STREET
    LONDON,   United Kingdom  WC1H 0DZ
  • Publication Date: 1996-5

Language

  • English

Media Info

  • Pagination: p. 7-8,10,12
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00725481
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, ATRI
  • Created Date: Sep 26 1996 12:00AM