00335167

Component

http://onlinepubs.trb.org...s/trr/1980/789/789-003.pdf

https://scholar.google.co...gent&publication_year=1981

Procedures for predicting traffic noise are used in the design of new highways to determine whether noise is limited to specific levels. A previous study evaluated the procedure outlined in National Cooperative Highway Research Program (NCHRP) Report 117 and developed a correction factor that was incorporated into Kentucky's noise-prediction procedure. This adjusted NCHRP 117 procedure has been used in Kentucky for the past several years. The Federal Highway Administration has developed a new procedure to predict traffic noise levels. The objective of this study was to evaluate the new prediction procedure, designated Simplified Noise Analysis Program (SNAP 1.0). Comparisons of measured and predicted noise levels showed that better predictions are obtained from SNAP 1.0 than from the adjusted NCHRP 117 procedure. Therefore, it was recommended that the SNAP 1.0 prediction procedure be adopted. There was no need for a general correction factor; however, adjustments in specific portions of the procedure may be necessary to optimize the predictions. (Author)

Publication of this paper sponsored by Committee on Transportation-Related Noise. 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.

01411606

pp 14-17

1981

Transportation Research Record

0309032032

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References (8) ; Tables (4)

Accuracy; Forecasting; Methodology; Traffic noise

U.S. Federal Highway Administration

Highways; Operations and Traffic Management

TRIS, TRB

Oct 28 1981 12:00AM

• COMPARISON OF LEQ(H) AND LDN AS DESCRIPTORS OF HIGHWAY TRAFFIC NOISE
• COMPARISON OF SOUND-LEVEL PREDICTIONS BY SNAP 1.0 AND STAMINA 1.0 HIGHWAY TRAFFIC-NOISE-PREDICTION PROGRAMS
• EMPIRICAL RELATIONSHIP BETWEEN MESOSCALE CARBON MONOXIDE CONCENTRATIONS AND AREAL VEHICULAR EMISSION RATES
• EVOLUTION OF ENVIRONMENTAL ANALYSIS AT THE STATE TRANSPORTATION DEPARTMENT LEVEL
• INVENTORY AND PRIORITY RATING OF POTENTIAL TYPE II NOISE-ABATEMENT SITES IN GEORGIA
• NOISE ABATEMENT AND PUBLIC POLICY DECISIONS: A CASE STUDY--I-440 IN NASHVILLE
• ROLE OF PLANT MATERIALS IN TRAFFIC NOISE CONTROL
• SIMPLIFIED TRAFFIC-NOISE-PREDICTION MODEL FOR TRANSPORTATION AND LAND USE PLANNING
• STAMINA 1.0 EXPERIENCES ON THE DULLES ACCESS HIGHWAY EXTENSION PROJECT