rumble strip
noun/ˈrʌmbl strɪp/
/ˈrʌmbl strɪp/
(informal)- a series of raised narrow areas across a road or along its edge that make a loud noise when a vehicle drives over them in order to warn the driver to go slower or that they are too close to the edge of the roadTopics Transport by car or lorryc2
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rumble strip