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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 Provinces of Alberta and British Columbia and the State of Illinois.[1] In Alberta, U-Turns are prohibited in certain circumstances, for example (ref. Alberta Regulation 304/2002, Division 7):
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* At the crest of a hill or on a curve unless the driver can see at least 150 m ahead,; |7 w" E1 A# u9 w1 z
* Anywhere a sign prohibits a U-Turn,2 \+ X2 K* N: L
* In urban areas between intersections,/ k' `) ]) `; v2 b' d: S+ J
* At alleys and driveways,
7 e# |8 G i" K' c0 O. g * At an intersection controlled by a traffic signal (unless signage or signals specifically allow this maneuver),
8 z/ g' k) K% `7 Q& V * By a school bus on an undivided highway or on a divided highway where the length of the bus is longer than the width of the median between the two carriageways. |
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