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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):- Y3 y @% K- w/ F @& ?. E* }
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* At the crest of a hill or on a curve unless the driver can see at least 150 m ahead,
; u& F3 n2 x7 Q1 h * Anywhere a sign prohibits a U-Turn,: l0 T- |) O/ D% O: S J
* In urban areas between intersections,0 G% u5 N$ d2 E+ @
* At alleys and driveways,- h$ B- L9 |( G% ^" P R: y
* At an intersection controlled by a traffic signal (unless signage or signals specifically allow this maneuver),, y% h4 T# C( d- p4 n* M% H, ]
* 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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