Under what circumstances can a U-turn be made?

[ClaytonAnn]

Circumstances where a U-turn is permitted include: 1. Locations with designated U-turn openings: Drivers must activate the left turn signal in advance and make the U-turn without affecting normal traffic flow; 2. Intersections with U-turn traffic lights: Ensure the U-turn signal is green and only execute the turn within the designated lane; 3. Intersections marked with U-turn signs: Perform the maneuver based on actual conditions without obstructing other vehicles or pedestrians; 4. Intersections without explicit prohibitions against U-turns or left turns. Prohibited U-turn areas include yellow grid zones: While these generally indicate no-stopping areas, U-turns are actually permitted on yellow grids unless central barriers are present.