ON THE NOISE EMITTED BY SINGLE VEHICLES AT ROUNDABOUTS

The results of roadside measurements of the noise emitted by 6471 vehicles accelerating from and decelerating towards roundabouts are reported. Three rural sites were used at which speed limits of 50, 60 and 70 mph, respectively, were in operation and where the traffic was freely flowing upstream of the roundabout. The vehicles were divided into two groups: light vehicles (less than 1525 kg unladen weight) and heavy vehicles. The measured noise levels are expressed in terms of the distance of the vehicles from the roundabout. It was found that, for both accelerating and decelerating vehicles, the noise level/distance relationships were largely determined by the free flow speeds upstream of the intersection.(a) /TRRL/

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  • Corporate Authors:

    Academic Press Incorporated

    24-28 Oval Road
    London NW1 7DX,   England 
  • Authors:
    • Lewis, P T
    • James, A
  • Publication Date: 1978-5-22

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00182718
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Nov 14 1978 12:00AM