当然不是了。请看:* Z4 |" L% ?/ a2 p0 d, n4 R
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U-turns ; `+ O" D( W0 t9 e5 J X& N 0 f) x4 z3 {" r. @7 xDo not make a U-turn unless you can do it safely and without interfering with other traffic. ) i4 k9 V u" q! C: R
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. " O2 [/ u; J1 a& E4 R9 B7 u : T8 b& H7 d; O, Q, \8 E. gU-turns are not permitted in urban areas in the following situations:/ ?9 g( S' n: f/ U0 v) O
On a roadway between intersections. ; q1 o3 X$ Q! \8 g) {6 G PWhere a sign prohibits making a U-turn. / k( m' ^& B% Z% H0 `
At an intersection controlled by a traffic-control signal (traffic lights). 0 J: y8 D; D, p0 w" u7 W5 lAt an alley intersection. 6 G% A3 e2 c7 _3 K: t! x# X2 G) E4 u
摘自 Alberta Basic Driver's Handbook