Frequently Asked Questions
Q. Do rumble strips cause noise problems for nearby residents?
A. Noise is all around us and is heard at different decibel levels. Tests have been performed to measure the noise at the roadside when a passenger car drives on milled-in rumble strip groves. The tests showed the noise level was 70 decibels, only 1 decibel higher than that measured for a vehicle driving on a regular road surface. The sound of 70 decibels is comparable to that of an electric sewing machine or mixer.
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