当然不是了。请看: ( N; j' n/ U/ i( g$ Z9 M/ J3 \2 P( @/ M: L; q7 v3 C
U-turns 5 E$ S+ J; T$ l3 f; } ^( ~+ B% q; A- ~% C8 a+ f# z' A
Do not make a U-turn unless you can do it safely and without interfering with other traffic. 0 c( b3 P$ q0 Q' M) \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. & o4 c# u, g% u5 L
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U-turns are not permitted in urban areas in the following situations:' h2 o/ y8 J% I8 k0 B" I
On a roadway between intersections. 7 k! S% k1 g' b+ X# m$ S z# Q
Where a sign prohibits making a U-turn. W5 _6 G, Y- o5 |! r, |$ m' J2 l7 I
At an intersection controlled by a traffic-control signal (traffic lights). [ x. S; t5 R \+ c; g v8 ]At an alley intersection. 8 @" T2 G- K' t I# V [' q- ]0 K. l: R4 Z% ?- ?" R
摘自 Alberta Basic Driver's Handbook