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{{short description|Driving technique used when someone performs a 180° rotation}}
{{Other uses}}
{{Redirect|U-ie|Korean entertainer|Uee}}
{{Redirect|One Eighty|the Ambrosia album|One Eighty (album)|other uses|180 (disambiguation){{!}}One eighty}}
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[[File:U-turn.svg|thumb|right|A diagram showing the path of a driver performing a U-turn on a normal two-way road
[[File:U turn contrail 1.jpg|thumb|[[Contrail]] of a plane that took a U-turn]]
A '''U-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.
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 (traffic)|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.
In some special situations, U-turns can be regulated through the use of a [[traffic light]], where it is the only directional choice and drivers in the specified lane cannot continue forward (“U-turn only” lanes).
[[File:U-turn traffic light.jpg|thumb|A U-turn traffic light in [[Lake Buena Vista, Florida|Lake Buena Vista, Florida, United States.]]]]
==Prohibited U-turns==
U-turns are often prohibited for various reasons. Sometimes a sign indicates the legality of U-turns. However, traffic regulations in many jurisdictions specifically prohibit certain types of U-turns. Laws vary by jurisdiction as to when a U-turn may or may not be legal. Examples of jurisdictions with codified U-turn prohibitions include the Canadian provinces of [[Alberta]] and [[British Columbia]] and the U.S. states of [[Colorado]]<ref>
* At the crest of a hill or on a curve unless the driver can see at least 150 m ahead
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* Article 54: A driver of a motor vehicle shall be administratively fined 6000 to 12000 [[new Taiwan dollar]]s for making a U-turn on a railway level crossing. Should an accident occur, the [[driver license]] shall also be revoked, which is ''for life'' pursuant to Article 67. This lifetime revocation used to be absolute, but the amendment of the law proclaimed on 28 December 2005 and effective on 1 July 2006 has allowed a possible waiver after serving at least six years of the revocation.
* Article 75: A driver of a non-motorized vehicle (e.g. a [[bicycle]]) shall be administratively fined 1200 to 2400 New Taiwan dollars for making a U-turn on a railway level crossing.
==See also==
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* [[Three-point turn]]
* [[Turning radius]]
* [[Wrong
* [[Oakland Park, Florida]]
* [[Hairpin turn]]
* [[No U-turn syndrome]]
==References==
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