Botts' Dots
Nonreflective raised pavement markers (also known as Botts' dots) are usually round, are white or yellow, and are frequently used on highways and interstates in lieu of painted lines. They are glued to the road surface with an epoxy and as such are not suitable in areas where snow plowing is conducted. They are usually made out of plastic or ceramic materials.
Read more about this topic: Raised Pavement Marker
Famous quotes containing the word dots:
“It was said of old Sarah, Duchess of Marlborough, that she never puts dots over her i’s, to save ink.”
—Horace Walpole (1717–1797)