有关u-turn

小胡同

最近查google map for directions, 经常会看到需要u-turn。印象之中好像在主路上不可以，不管是否有不可u-turn的牌子。平常也看到有人在红绿灯处做u-turn。
1 T" Q  c: l% b9 B2 s0 z请问u-turn到底是不是合法的？
谢谢！

EightBelow

U-turns
% s- I+ E6 u0 E• Do not make a U-turn unless you can do it safely and without interfering
+ S+ }, P, n5 f- [$ Rwith other traffic.
• Outside urban areas U-turns are not permitted on a curve or near the
9 F4 G0 \5 Y, zcrest of a hill where the driver of another vehicle cannot see your vehicle.
8 _: U7 Z# s9 _, ?5 W4 w0 K+ tU-turns are not permitted in urban areas in the following situations:
• On a roadway between intersections.
3 C0 N  c1 e- r( N' F• Where a sign prohibits making a U-turn.
• At an intersection controlled by a traffic-control signal (traffic lights).
• At an alley intersection.

无语

有红绿灯的地方U-Turn是违规的。