当然不是了。请看:% C2 s' T- A* H1 }6 s. n
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U-turns" u4 c; B4 z! w& ?6 M) H
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Do not make a U-turn unless you can do it safely and without interfering with other traffic. + ]# Q# F- v- b' X8 nOutside 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. ; O) }, |4 `% s P+ y; E ) }) {+ x5 t" I( B' i4 P$ \+ n7 G2 vU-turns are not permitted in urban areas in the following situations: : k$ _% i5 w! S: }+ |On a roadway between intersections. # S; f! W, V% r c5 UWhere a sign prohibits making a U-turn. ; {/ J5 j! G+ [0 t: bAt an intersection controlled by a traffic-control signal (traffic lights). 9 z" G" E8 t' J
At an alley intersection. 0 y5 M" r+ c. q! E+ x1 j* `: Y( f8 j$ a, `( F
摘自 Alberta Basic Driver's Handbook