If you've ever driven on a highway, you may have noticed that there are often strips cut out of the pavement. These strips are called rumble strips and they're used to help keep drivers safe.
Rumble strips are usually placed along the edges of highways to help prevent drivers from veering off the road. They can also be placed in the middle of lanes to divide traffic or to warn drivers of upcoming hazards. Rumble strips make a loud noise when driven over, which helps to wake up or alert drivers who may be falling asleep at the wheel.
Rumble strips can help reduce the number of accidents on highways, but they're not without their drawbacks. The noise created by rumble strips can be annoying for drivers and nearby residents. And, if rumble strips aren't maintained properly, they can create potholes and other damage to the highway itself.