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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,
: d/ E* J& O/ s% T6 K5 ^6 _ * Anywhere a sign prohibits a U-Turn,
7 f, ^" y3 w- z+ K( q/ o, a4 ^ * In urban areas between intersections,
U8 [2 l/ A# x * At alleys and driveways,3 w- Z; r/ R- Y. F# D5 X% c
* At an intersection controlled by a traffic signal (unless signage or signals specifically allow this maneuver),' L" W/ K+ Z. |1 ]7 S' ~
* 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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