Noise-Reducing Pavement for Highways and Urban Roads - State of the Art in Denmark (With Discussion)

Noise is one of the most serious environmental problems caused by road traffic. About 28% of all Danish homes are exposed to more than 55 dB, which is the official recommended noise limit for road traffic noise. The Danish government has a long-term goal to reduce the noise to a level that is considered satisfactory for the health. According to the national road noise strategy, one of the most cost-effective means of noise abatement is the use of noise-reducing pavements. In this paper, the on-going Danish research to develop and test different types of noise-reducing pavements is presented and discussed. Single-layer porous pavements with a high built-in air void and a small maximum aggregate size have been tested on a highway with a speed-limit of 80 km/h. Over the structural lifetime, the noise reduction of the porous pavements was 3-4 dB relative to dense asphalt concrete with a maximum aggregate size of 12 mm. In order to achieve the same noise reduction, the traffic volume must be reduced by more than 50%. On an urban test road with a speed-limit of 50 km/h, similar single-layer porous pavements have been tested. Here, the observed noise reduction of 3 dB disappeared within 2 years, because the pores of the pavement were clogged. Three new types of two-layer porous asphalt are now being tested on an urban road with a speed limit of 50 km/h. These pavements are designed and constructed to avoid clogging and to improve durability. The pavements are cleaned with special equipment using water under high pressure twice a year. After four years, noise reductions of approximately 3 dB have been measured compared to a dense asphalt concrete with a maximum aggregate size of 8 mm. In order to develop new types of cost-effective noise-reducing pavements for urban application, research and testing of different kinds of thin surface layers have been started in the framework of an EU research project (SILVIA).

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/70700638
• Authors:
  • Bendtsen, Hans
  • Andersen, Bent
• Discussers:
  • Ruth, Byron
  • Phillips, Joseph
  • Dunning, Michael
• Conference:
  • 2005 Journal of the Association of Asphalt Paving Technologists: From the Proceedings of the Technical Sessions
  • Location: Long Beach CA, United States
  • Date: 2005-3-7 to 2005-3-9
• Publication Date: 2005

Language

• English

Media Info

• Media Type: Print
• Features: CD-ROM; Figures; Photos; References; Tables;
• Pagination: pp 1085-1106
• Serial:
  • Journal of the Association of Asphalt Paving Technologists
  • Volume: 74
  • Publisher: Association of Asphalt Paving Technologists (AAPT)
  • ISSN: 0270-2932
  • Serial URL: https://www.asphalttechnology.org/site_page.cfm?pk_association_webpage_menu=9169&pk_association_webpage=19109

Subject/Index Terms

• TRT Terms: Air voids; Asphalt; Cleaning; Cost effectiveness; Durability; Environmental impacts; Field tests; Health; Highway traffic; Life span; Noise control; Porous materials; Porous pavements; Speed limits; State of the art; Tire/pavement noise; Traffic noise; Traffic volume; Urban highways
• Uncontrolled Terms: Aggregate size; Clogging; Dense asphaltic concrete; Double layer
• Geographic Terms: Denmark
• Subject Areas: Design; Energy; Environment; Highways; Maintenance and Preservation; Pavements; Society; I15: Environment; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 01020744
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 27 2006 11:07AM