HIGHWAY NOISE MEASUREMENT FOR ENGINEERING DECISIONS

THE PROBLEM OF PROVIDING A PRACTICAL METHOD FOR EVALUATING HIGHWAY NOISE USING INEXPENSIVE EQUIPMENT AND TECHNICAL PERSONNEL ALREADY AVAILABLE TO A HIGHWAY DEPARTMENT HAS BEEN EXAMINED. A PERIODIC SAMPLING PROCEDURE HAS BEEN DEVELOPED USING A HAND- HELD SOUND LEVEL METER SET ON THE "A" WEIGHTED NETWORK. RECORDINGS OF TRAFFIC NOISE WERE TAKEN AT SEVERAL SITES IN HOUSTON, TEXAS. THESE RECORDINGS WERE PLAYED BACK IN THE LABORATORY AND PLOTTED ON A STRIP CHART PLOTTER. USING THESE GRAPHICAL REPRESENTATIONS OF THE HIGHWAY NOISE, A PERIODIC SAMPLING PROCEDURE HAS BEEN EVALUATED. THIS PROCEDURE ALLOWED A HAND-HELD SOUND LEVEL METER TO BE USED TO MEASURE HIGHWAY NOISE VALUES AT 15-SECOND INTERVALS FOR 5 MINUTES GIVING A 95 PERCENT PROBABILITY OF THE MEAN VALUE BEING WITHIN PLUS 0.5 DBA OF THE TRUE MEAN. USING THIS AVERAGE VALUE, VARIOUS PERCENTILE VALUES (SOUND PRESSURE LEVELS EXCEEDED A GIVEN PERCENTAGE OF THE TIME) CAN BE ESTIMATED. THIS PROCEDURE PERMITS ADEQUATE EVALUATION OF HIGHWAY NOISE PROBLEMS FOR ENGINEERING DECISIONS, BUT DOES NOT REPLACE THE MORE COMPLEX EQUIPMENT AND SPECIALIZED PERSONNEL NEEDED FOR LEGAL CASES.

  • Supplemental Notes:
    • RESEARCH STUDY NO. 2-8-71-166
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 1600 E Lamar Boulevard
    Arlington, TX  USA  76011
  • Authors:
    • Woods, D L
    • Young, M F
  • Publication Date: 1971-6

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 37 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00203764
  • Record Type: Publication
  • Report/Paper Numbers: No 166-2 Res Rep
  • Files: TRIS, ATRI
  • Created Date: Apr 2 1973 12:00AM