Noise Policy
ADOT Noise Abatement Policy / Addendum
This policy is based on currently accepted practices and procedures
by federal and state transportation agencies to assess and mitigate
highway-related noise levels. This policy became effective on
December 5, 2005, and supersedes the previous Noise Abatement
Policy dated March 31, 2000. An addendum to the noise policy was
approved by the Federal Highway Administration on August 24, 2007.
 ADOT
Noise Abatement Policy (file size: 346KB)
Addendum
to the ADOT Noise Abatement Policy (file size: 42KB)
Flowchart for Noise Process
This handy flowchart shows the steps involved when evaluating
noise impacts for highway improvement projects.
Flowchart
for Noise Process (file size: 98KB)
Interesting Facts about Noise
This handy flyer provides general rules of thumb about noise
decibels levels and noise mitigation.
Interesting
Facts about Noise (file size: 5.1MB)
Common Indoor and Outdoor Noise Levels
This handy chart illustrates the decibel levels of indoor
noise sources, such as a vacuum cleaner, and outdoor noise sources,
such as a diesel truck. The chart ranges from 0 to 140 decibels.
Common
Indoor and Outdoor Noise Levels (file size: 5.4MB)
Documents are posted as they become available
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