当然不是了。请看: $ }! U# e0 e- E+ i) M: }& x3 U ) \) @- q @5 `1 }, X: F3 T hU-turns 8 v; E5 \7 l2 [4 V* \ ; I3 [& w3 f7 g7 xDo not make a U-turn unless you can do it safely and without interfering with other traffic. , i" y, Y# J% s1 x' F+ fOutside 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. " x% b+ z, J7 ~2 z* O
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U-turns are not permitted in urban areas in the following situations:! E# _* H% Z p% |5 p8 P9 [6 a
On a roadway between intersections. 5 B; F1 O8 U* {$ K: e( _) S
Where a sign prohibits making a U-turn. : E6 Y( o5 T5 n& ?9 A' y
At an intersection controlled by a traffic-control signal (traffic lights). 0 [+ s; T7 m+ \; TAt an alley intersection. & q& H$ D1 v% v0 a! J1 X+ R5 K7 W9 H' O I+ p/ B* E- e* z6 Z' \
摘自 Alberta Basic Driver's Handbook