Harmonic Highways

Image Credit: Washington State Department of Transportation

Image Credit: Washington State Department of Transportation

A portion of Route 66 that crosses through New Mexico has been altered to produce music through the introduction of “rumble strips.” However, the chosen song, America the Beautiful, is only intelligible when a motorist drives at the designated speed limit. 99 Percent Invisible reports, “Go too fast and the pitch is transposed higher and the tempo is increased,” which promises an audibly uncomfortable experience for a driver.

Source: 99 Percent Invisible