当然不是了。请看:3 A% W; {/ e$ c& j, d
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U-turns " Y5 X6 {( r. i; L! S5 }2 t0 ]1 @3 d5 b0 ]3 K3 ]
Do not make a U-turn unless you can do it safely and without interfering with other traffic. |2 E, X% q3 x1 t
Outside urban areas U-turns are not permitted on a curve or near the crest of a hill where the driver of another vehicle cannot see your vehicle. / G5 P. T j) ` q7 z. s
. u# L X# `* V$ \U-turns are not permitted in urban areas in the following situations: " G4 C! q; t* d0 l' R" `1 @+ iOn a roadway between intersections. 0 Y+ a* ^) }; X# V
Where a sign prohibits making a U-turn. " b/ J1 |5 O# i7 H' t$ U$ `% O* j B% a
At an intersection controlled by a traffic-control signal (traffic lights). & Z9 n9 e& \ P
At an alley intersection. 0 F0 |4 M1 J, o+ Y! R* v' P/ M; z' s( S$ t
摘自 Alberta Basic Driver's Handbook