A rumble strip is a series of small, raised bumps or grooves on the surface of a road designed to alert drivers when they are drifting out of their lane or approaching a dangerous area. When a vehicle drives over a rumble strip, it causes a loud noise and vibration, which helps to grab the driver's attention. Rumble strips are often placed on highways, near curves, or at the edges of roads to warn drivers and encourage them to slow down or steer back into their lane. They are an important safety feature, especially in areas where driver distraction is a concern.

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