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。
# A3 y9 Z9 Q7 q. b  u' \" c请问u-turn到底是不是合法的？
- y, H* I# L: }谢谢！

EightBelow

U-turns
• Do not make a U-turn unless you can do it safely and without interfering
with other traffic.
- Z, w9 t  A# S: ^& q/ J• Outside urban areas U-turns are not permitted on a curve or near the
6 y9 h" O3 q" f+ L. Ucrest of a hill where the driver of another vehicle cannot see your vehicle.
  `* R- w' g. ~' b" Q5 e# O) ]& HU-turns are not permitted in urban areas in the following situations:
4 C- ^$ B/ i, ]3 x) z/ m• On a roadway between intersections.
• Where a sign prohibits making a U-turn.
• At an intersection controlled by a traffic-control signal (traffic lights).
, x% A8 Y, Z/ g7 U• At an alley intersection.

无语

有红绿灯的地方U-Turn是违规的。