U-turn

A U-turn in driving refers to performing a 180 degree rotation to reverse the direction of travel. It is called a "U-turn" because the maneuver looks like the 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 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.

In the United States, U-turn regulations vary by state: in Indiana U-turns are allowed as long as the driver follows all of the precautions normally ascribed to making a left turn (yielding right-of-way, etc.). Many places, including Texas and Georgia, have specially designed U-turn lanes (referred to as Texas U-turn lanes). In Michigan, U-turns are required for many left turns to and from divided highways, as part of the Michigan Left maneuver (also referred to as a Michigan Turn).

It can also be used to mean a sudden reversal of policy in politics.

Read more about U-turn:  Prohibited U-turns

Other related articles:

Prohibited U-turns - Philippines
... The Department of Public and Highways (DPWH) has blamed the huge number of U-turn slots as well as the improper position of pedestrian lanes especially ... conducted by road safety and traffic experts under the international road assessment program, U-turn slots are good “for a certain traffic volume” but not effective in ... The construction of the U-turn slots started during the term of Bayani Fernando as part of the agency’s measures to improve the flow of traffic ...
The Amazing Race - The Race - Obstacles - U-Turn
... The U-Turn, introduced in season 12 as a replacement of the Yield, is similar in format to the Yield however, it is always placed immediately after a Detour ... After completing their Detour option, a team may use their U-Turn ability to force another team to backtrack and complete the Detour option they did not previously complete ... Like the Yield, the team placing the U-Turn places a photo of the team they are penalizing along with their own "Courtesy of" photo on the U-Turn marker stand ...