A laboratory study was undertaken to investigate the relation between traffic noise and annoyance with special reference to the number of noisy events. Students were exposed to different noise conditions for 45 and 120 minutes whereafter their reactions were assessed using a questionnaire. The extent of annoyance was found to increase with augmenting leq levels but only when the number of noisy events remained equal. At equal leq levels an increased extent of annoyance was found when the number of noisy events increased from 1 to 15 per hour. The results point to certain limitations in the validity of the equal energy concept and to the usefulness of laboratory studies to investigate reactions to environmental noise. /TRRL/

  • Availability:
  • Corporate Authors:

    Academic Press Incorporated

    Berkeley Square House, Berkeley Square
    London W1,   England 
  • Authors:
    • Sjoestedt, E
    • Bjoerkman, M
  • Publication Date: 1977-6-8

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00163845
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Analytic
  • Files: ITRD, TRIS
  • Created Date: Dec 27 1977 12:00AM