当然不是了。请看: ( w" @2 n) a) s" Q! m W. p, {) d! p4 @) l3 e* n# k9 K- |8 h
U-turns 4 M J; l9 r. j- ^" t3 b C# g* ^/ n9 m$ f
Do not make a U-turn unless you can do it safely and without interfering with other traffic. % @0 T' h, r7 @/ h$ n& w7 q" EOutside 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. ; {/ b2 P6 d, n6 y' y
: p2 _8 ^( K6 M- pU-turns are not permitted in urban areas in the following situations: 6 E V$ e- t1 B3 uOn a roadway between intersections. 8 G2 M [! z- |8 lWhere a sign prohibits making a U-turn. ; D' q7 K: y9 k
At an intersection controlled by a traffic-control signal (traffic lights). . i+ J4 H+ E' i$ L
At an alley intersection. 7 T' q4 X# }- P
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摘自 Alberta Basic Driver's Handbook