The paper presents the results of a small study of sound and infrasound levels in lorry cabs; the instrumentation used is described briefly. The cabs of new vehicles are shown to be quieter than those of older vehicles particularly at audible frequencies. The sound pressure levels recorded were influenced by: opening the windows, the type of road surface, the road speed and the engine load. The authors suggest that the sound levels in some lorry cabs are high enough to endanger the hearing of drivers and that the effects on balance and concentration of the high levels of infra-sound found in the cabs may represent a hazard to road safety. /TRRL/

  • Supplemental Notes:
    • Presented at British Acoustical Society Conference.
  • Corporate Authors:

    University of Salford

    Salford M5 4WT, Lancashire,   England 
  • Authors:
    • Williams, D
    • TEMPEST, W
  • Publication Date: 1973

Media Info

  • Features: Figures; References;
  • Pagination: 3 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00128134
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: No. 4 Conf Paper
  • Files: ITRD, TRIS
  • Created Date: Apr 21 1976 12:00AM