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The Technical Advisory suggests rumble strips should be at least 12 inches wide. Is this still the recommended minimum width?

April 26, 2017advisory inches minimum recommended rumble strips suggests Technical wide

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The Technical Advisory suggests rumble strips should be at least 12 inches wide. Is this still the recommended minimum width?

1 Answer

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10 Posted

Not necessarily. A few agencies have installed 6-inch rumble stripes where they have no paved shoulder. While they have shown diminished results, there are safety benefits. Since these are new, it is recommended that an evaluation be completed on each installation.