EVALUATION AND MODIFICATION OF TRAFFIC NOISE PREDICTION PROCEDURE FOR KENTUCKY HIGHWAYS

Approximately 270 recordings of noise levels were obtained at 39 highway sites and compared with the predictions of noise levels based on the procedure given in a National Cooperative Highway Research Program report on highway noise. The measured noise levels were computed in terms of the A-weighted L sub 10 value (level exceeded 10 percent of time) and then compared with the predicted noise levels. A significant discrepancy was found between predicted and measured noise levels. Generally, the predicted values exceeded the measured values. Average error per location was 4.8 dBA/ the maximum error was 13 dBA. A nomograph was devised to correct the predicted value/ this nomograph involves observer-roadway distances, truck volumes, and automobile speeds. Application of the correction factors reduced the average error by 60 percent to 1.9 dBA. Based on these findings, the nomograph was approved by the Federal Highway Administration for use in predicting noise levels in Kentucky.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1976/580/580-005.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=EVALUATION+AND+MODIFICATION+OF+TRAFFIC+NOISE+PREDICTION+PROCEDURE+FOR+KENTUCKY+HIGHWAYS&author=K.+Agent&author=C.+Zegeer&publication_year=1976
• Availability:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Transportation Environmental Review Process. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Agent, Kenneth R
  • Zegeer, Charles V
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1976

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 42-47
• Monograph Title: Transportation Environmental Review Process
• Serial:
  • Transportation Research Record
  • Issue Number: 580
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Evaluation; Forecasting; Highways; Nomographs; Sound level; Traffic noise
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00141275
• Record Type: Publication
• ISBN: 0309024943
• Files: TRIS, TRB
• Created Date: Oct 26 1976 12:00AM