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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):, \* H8 ]8 d k
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* At the crest of a hill or on a curve unless the driver can see at least 150 m ahead,
# |8 B! a" X! A, S * Anywhere a sign prohibits a U-Turn,1 Z1 Z# X) ~# B$ h: A
* In urban areas between intersections,
8 e: v2 o- S+ n6 d4 e1 T$ K * At alleys and driveways,
! V: z( |- k9 W ^2 Q * At an intersection controlled by a traffic signal (unless signage or signals specifically allow this maneuver),7 m5 v8 R1 |- k' ^' L% B
* 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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