当然不是了。请看: S. H. a2 i O) Z! l# R% \ T$ T% e7 O, S. [7 b
U-turns : D$ U; b X: \# f& ]- g+ q& @ 3 Z- d6 d! m# @) U4 B5 `3 WDo not make a U-turn unless you can do it safely and without interfering with other traffic. ! D* g' W- \* z/ m9 rOutside 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. % z* M% w, R$ _( H3 a , ]% U0 d; ?+ l2 X) e8 l3 MU-turns are not permitted in urban areas in the following situations: % J$ H+ y* D i! i% q1 E8 Q: R9 ~5 J4 cOn a roadway between intersections. " X& X* }/ d" C$ TWhere a sign prohibits making a U-turn. a, t: O4 Q' {# o5 Z8 BAt an intersection controlled by a traffic-control signal (traffic lights). - p+ h+ X" C& q% S7 k W! hAt an alley intersection. 3 F3 p2 Y) |2 I' a; J5 p" p% p5 v3 {- {* R: b8 g
摘自 Alberta Basic Driver's Handbook