当然不是了。请看: " u7 R. A5 Q& G/ x3 O1 L0 c6 g2 T
U-turns+ b5 ^! y9 b9 X- ^: t
7 s" {/ k: |3 b' y* Y% gDo not make a U-turn unless you can do it safely and without interfering with other traffic. 0 \ A+ \. m( aOutside 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. 9 z" R1 V% a+ v& d; O g: C$ G8 F, V8 G' X2 a
U-turns are not permitted in urban areas in the following situations:9 W/ Y' o* Z0 A
On a roadway between intersections. $ v/ Z5 b- ^/ y" s6 W: C
Where a sign prohibits making a U-turn. 9 d$ P/ t. z5 \At an intersection controlled by a traffic-control signal (traffic lights). / r9 g$ _# A6 _$ j7 L2 {! x
At an alley intersection. 5 Z; P; W' I `6 r
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摘自 Alberta Basic Driver's Handbook