[[File:U-turn.svg|thumb|right|A diagram showing the path of a driver performing a U-turn on a normal two-way road.]]
A '''U-turn''' (also called an ''about-face turn'') in [[driving]] refers to performing a 180° rotation to reverse the direction of travel. It is called a "U-turn" because the maneuver looks like the [[U|letter U]]. In some areas, the maneuver is illegal, while in others, it is treated as a more ordinary turn, merely extended. In still other areas, lanes are occasionally marked "U-turn permitted" or even "U-turn only."
Occasionally, on a [[divided highway]], special U-turn ramps exist to allow traffic to make a U-turn, though often their use is restricted to emergency and police vehicles only.
