当然不是了。请看:7 f$ K! Q+ h( y1 _& N( M
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U-turns& C0 y0 G: U! _; z4 k+ q- R) e
' B. L! k; I; i& o1 _Do not make a U-turn unless you can do it safely and without interfering with other traffic. + k, a: s3 `6 i2 G3 }4 a1 t0 Q8 o
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. 6 @; _; [% M, K0 c7 k% J5 F% D% Q( r) G
U-turns are not permitted in urban areas in the following situations:# ^* V" Z/ Z, ?$ }! W7 X
On a roadway between intersections. # t' u3 n$ n; b5 A4 k
Where a sign prohibits making a U-turn. ( `/ ^2 ~ p6 ~* ~1 J
At an intersection controlled by a traffic-control signal (traffic lights). 1 e" v* k3 V' _. o
At an alley intersection. ; d7 ~3 P1 N2 Q, F7 x8 a/ j; I6 O3 M& K8 M- Y- }/ t! o$ j
摘自 Alberta Basic Driver's Handbook