Noise Analysis Manual
Manual and guidance for analysis and abatement of highway traffic noise.
odx-read-more about the article: Noise Analysis ManualUpcoming Noise Wall Projects
Download the latest list of noise wall projects.
odx-read-more about the article: Upcoming Noise Wall ProjectsNoise & Air Quality Presentations
Need a refresher or want a high-level summary of noise and air quality programs in Ohio? View past presentations.
odx-read-more about the article: Noise & Air Quality PresentationsWelcome to ODOT's Noise Program
Noise is considered unwanted sound, particularly when the sound causes annoyance. Noise comes from many sources. One of the most significant sources is from transportation, particularly traffic noise.
Highway noise comes from three sources: the engine, the exhaust and the interaction of the tires and pavement. Once typical highway speeds are reached, the predominate noise from light trucks and cars is from the tire/pavement interaction. Heavy trucks produce a high volume of noise from all three sources even at high speeds.
Mitigating transportation noise in the environment is important for the health and welfare of the surrounding community. Numerous studies have demonstrated the effect of noise on the health of those suffering under its impact. Effects ranging from hearing loss to cardiac arrest have been linked to noise. Prolonged exposure to noise in excess of 75 dBA (deciBels Adjusted) may initiate hearing loss. Noise may also negatively impact the quality of life of those who must live with it. Loss of sleep and the inability to hold conversations are frequent complaints. Helping to alleviate these negative impacts is the objective of noise abatement.
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What does a decibel sound like?
Watch a video that explains sound levels in decibels and also shows the effect of different noise levels.
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Frequently Asked Questions About Noise Barriers
Everything you always wanted to know about noise walls and more.
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Noise Analysis & Abatement
Noise analysis and abatement procedures summarized.
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Noise Analysis Manual
Manual and guidance for analysis and abatement of highway traffic noise.
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Performing Traffic Noise Reading
Watch a video that shows how to perform traffic noise readings.
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How NEPA Affects Noise
Read an explanation of how the National Environmental Policy Act (NEPA) affects noise studies during transportation projects.
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Noise Wall Examples
View images of noise walls and noise wall equipment.
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Noise & Air Quality Presentations
Need a refresher or want a high-level summary of noise and air quality programs in Ohio? View past presentations.
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Traffic Noise Activity Book
Download an activity book for kids to learn about noise.
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Upcoming Noise Wall Projects
Download the latest list of noise wall projects.