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U-turns 

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From ICBC Drive Smart book.

U-turns are illegal:

• if they interfere with other traffic
• on a curve
• on or near the crest of a hill, where you cannot be seen by other traffic within 150 meters
• where a sign prohibits U-turns
• at an intersection where there is a traffic light
• in a business district, except at an intersection where there is no traffic light
• where a municipal by-law prohibits making a U-turn

.  .  .  .  .

Vancouver, B.C.

City of Vancouver, Street & Traffic Bylaw 2849.

Section 38. LIMITATIONS ON "U" OR REVERSE TURNING.

(1) No driver of any vehicle shall turn such vehicle so as to proceed in the opposite direction:

(a) On any through street.

(b) Within an intersection at any corner of which a "Stop" sign has been placed, or where a traffic-control signal has been installed.

(c) At any other intersection unless such movement can be made in safety, without backing, and without interfering with other traffic.

(d) On any street between intersecting streets.

(e) At any lane intersection.

(2) The provisions of this section shall not apply to the driver of any bus at a terminus of any route, or at any other location approved by the Council, but such driver in making any "U" turn shall first ascertain whether such movement can be made in safety.

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 * Picture: Surrey (BC), u-turns sometimes permitted on the advance green left turn arrow.