Why do some US airport runways have grooves cut across the pavement? They help stop aircraft tires from hydroplaning when the runway is wet

Grooved runways play an essential role in minimizing hydroplaning by allowing rainwater to drain effectively during aircraft landings. The Federal Aviation Administration establishes detailed specifications for these grooves to promote aviation safety. Cut into both new and old pavements, these grooves ensure safer operations in wet weather. While not all runways feature them, the decision rests with engineers, verifying their importance for smoother landings during adverse conditions.