当然不是了。请看: 6 U+ u& X' S: N3 H- P $ B4 R; U$ P6 b! s! xU-turns 0 P1 L3 N) Q) _+ S" i- e3 C6 R4 M : N% A7 ?1 V* {& ]Do not make a U-turn unless you can do it safely and without interfering with other traffic. 0 @! |4 ~8 Q9 W8 i! [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. + Y) f$ _; Y, V7 Z6 [$ J' n% ?& H# w+ _
U-turns are not permitted in urban areas in the following situations:8 s/ p9 z( V N: h P2 ?
On a roadway between intersections. 3 |/ M6 R* A& r/ e5 p& X5 D2 e& _
Where a sign prohibits making a U-turn. ' ]0 n4 W+ Z$ g* e9 h
At an intersection controlled by a traffic-control signal (traffic lights). C8 g" u8 K6 l" J7 S% n& N
At an alley intersection. ( V. X& K* I- X' a% ], ^6 C( c0 ~, E* E1 {5 v( d. C! f/ {3 p
摘自 Alberta Basic Driver's Handbook