A DATA LOGGING SYSTEM FOR THE MEASUREMENT OF ROAD TRAFFIC NOISE

THE TRRL NOISE LOGGING EQUIPMENT IS A TEN MICROPHONE SYSTEM DESIGNED TO ACCUMULATE INFORMATION AUTOMATICALLY ABOUT THE TEMPORAL DISTRIBUTION OF NOISE OVER A SELECTED AREA. IT IS CAPABLE OF OPERATING CONTINUOUSLY FOR 24 HOURS OR MORE. THE REPORT DESCRIBES THE COMPONENTS OF THE LOGGER AND DISCUSSES ITS PERFORMANCE IN THE FIELD. THE ACCURACY OF THE SYSTEM DEPENDS UPON THE RATE OF DATA ACQUISITION. AT THE RATE CURRENTLY IN USE, THE STANDARD ERROR ASSOCIATED WITH ESTIMATES OF THE L10 AND L90 INDICES IS TYPICALLY PLUS OR MINUS 1.0 DBA AT SITES ALONGSIDE ROADS. THIS COMPARES FAVORABLY WITH THE PRECISION OFFERED BY THE MORE WIDELY USED TAPE RECORDING METHOD. THE RESULTS OF AN EXPERIMENT CARRIED OUT IN BIRMINGHAM ARE REPORTED. /AUTHOR/

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • Cheeseman, M
  • NELSON, P M
• Publication Date: 1972

Media Info

• Pagination: 21 p.

Subject/Index Terms

• TRT Terms: Acoustic equipment; Noise; Recording instruments; Sound level meters
• Subject Areas: Environment; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00224182
• Record Type: Publication
• Source Agency: National Technical Information Service
• Files: TRIS
• Created Date: Jul 8 1973 12:00AM