Roads That Sing While You Drive

Certain highways are engineered with grooves that play melodies when tires roll over them. By spacing these bumps at precise intervals, the road acts like a physical music box for passing vehicles.

These ingenious surfaces rely on the same principle as a vinyl record or a music box cylinder. As a car drives at a specific speed, the vibration from the grooves creates distinct pitches that form a recognizable song. They were originally designed as a clever way to keep drivers alert on long, monotonous stretches of highway. You can find these melodic stretches in over a dozen countries ranging from Japan to South Korea.