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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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/ ~8 `# L. _: z: ]; A& L * At the crest of a hill or on a curve unless the driver can see at least 150 m ahead, R' H- H5 @3 q; k
* Anywhere a sign prohibits a U-Turn,! I, b# |3 a) u0 s$ D" S. u1 k+ D
* In urban areas between intersections,
1 l4 L' R0 o7 r" W c# G3 H Y1 B * At alleys and driveways,/ y, \/ H, s6 l4 `: b
* At an intersection controlled by a traffic signal (unless signage or signals specifically allow this maneuver),: T1 u3 ~! |0 Z/ h7 s6 j
* 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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