Evaluation of the FHWA Traffic Noise Model (TNM) for Highway Traffic Noise Prediction in the State of Colorado

Hankard, Michael; Cerjan, Jeff; Leasure, Joshua

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Evaluation of the FHWA Traffic Noise Model (TNM) for Highway Traffic Noise Prediction in the State of Colorado

2006-11-01
By Hankard, Michael ; Cerjan, Jeff ; Leasure, Joshua

File Language:

English

Details

Creators:

Hankard, Michael ; Cerjan, Jeff ; Leasure, Joshua
Corporate Creators:

Hankard Environmental Inc.
Corporate Contributors:

Colorado. Department of Transportation. Applied Research & Innovations Branch ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Evaluation Mathematical Prediction Noise Noise Levels Pavements Procedures Statistical Analysis Traffic Barriers Traffic Noise
Publication/ Report Number:

CDOT-2005-21
Resource Type:

Tech Report
Geographical Coverage:

United States ; Colorado
Edition:

Final Report
Corporate Publisher:

Colorado Department of Transportation. Applied Research & Innovations Branch
Abstract:

The Federal Highway Administration's Traffic Noise Model (TNM) versions 2.1 and 2.5 were analyzed to determine their functionality and accuracy in Colorado. First, predicted levels were compared to noise levels measured at 42 locations at 13 sites throughout Colorado. In general, TNM predicted within ± 2 dB of the measured noise levels. Second, each of TNM's input parameters was varied through its useful range. The results for the Hard Soil ground type, barrier insertion loss, flow control, and parallel barriers do not completely agree with known acoustical principles and should be studied further. Finally, TNM results were compared to those of the German RLS90, Nordik Statens Planverk, and STAMINA noise models. TNM exhibits a faster decay rate than all of the other models, and predicts higher insertion loss than the other models for low height barriers.
Format:

PDF
Funding:

03 HTD 00062
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:fccf77780d3e73bbbde042dd0949f4205b2fefd4cd5ff6c1550dfb72cb8170f1fd279074a611166bee610cc4eb82c4e26ab8e3e49bf44f07c58d9dab0c624b56
Download URL:

https://rosap.ntl.bts.gov/view/dot/93078/dot_93078_DS1.pdf
File Type:

[PDF - 7.94 MB ]

File Language:

English

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