AN ANALYSIS OF THE EPNL/NEF AIRPORT NOISE RATING PROCEDURE AND DATA BASE

Recent measurements of noise levels from commerical jet aircraft in landing approach paths indicate that the standard EPNL data used by FAA and other agencies understate the noise levels and noise impact. Also, the current EPNL calculation procedures contain factors which result in noise values 3 EPNdB less than values obtained starting with the same basic noise signals and using the 1967 EPNL procedure. EPNL and Noise Exposure Forecast (NEF) values are ambiguous in meaning, provide only a relative comparison basis and do not indicate the absolute magnitude of noise intensities and the effects of noise on people.

• Supplemental Notes:
  • Transpo L.A., Economic Leverage for Tomorrow. Proceedings of the 4th Annual Symposium.
• Corporate Authors:

  Western Periodicals Company

  13000 Raymer Street
  North Hollywood, CA  United States  91605
• Authors:
  • LANE, S R
• Conference:
  • Transpo L.A., Economic Leverage for Tomorrow. Proceedings of the 4th Annual Symposium.
• Publication Date: 1975

Media Info

• Features: Photos;
• Pagination: p. 260-275

Subject/Index Terms

• TRT Terms: Air; Airport noise; Civil aviation; Databases; Environmental impact analysis; Environmental impacts; Forecasting; Health hazards; Impact studies; Landing; Mathematical models; Measurement; Noise; Sound level; Transportation
• Uncontrolled Terms: Noise measurement
• Old TRIS Terms: Noise exposure forecast; Transportation models and systems
• Subject Areas: Terminals and Facilities; Transportation (General);

Filing Info

• Accession Number: 00155827
• Record Type: Publication
• Source Agency: Transportation Statistical Reference File, TSC
• Report/Paper Numbers: Proceeding
• Files: TSR, TRIS
• Created Date: Sep 28 1977 12:00AM