Three noise level measurement systems have been investigated and made operational. They are:
1. Graphic Level Recording Method
2. Periodic Sampling Method
3. Environmental Noise Classifier Method
The relative accuracy of the three systems were compared by simultaneous field measurements of traffic noise. Other factors such as equipment portability, data analysis requirements, and expertise requirements were also compared.
Two major noise prediction methods were investigated and compared. They are:
1. NCHRP Report 117--Noise Prediction Method
2. Transportation System Center (TSC) Noise Prediction Method
Noise level predictions using the two methods were compared to actual field measurements. The relative ease of each was also compared.
United States. Federal Highway Administration. Office of Environmental Policy
2016-11-01
Abstract:
It is important to understand the contribution of noise sources other than the highway in order to determine the total noise exposure in an area, for ...
In March 1998, the Federal Highway Administration (FHWA), Office of Natural andHuman Environment, released the FHWA Traffic Noise Model (TNM), Version...
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United States Department of Transportation
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