Under what circumstances can you make a U-turn without obeying traffic lights?

[LukeMarie]

There are several situations where you can make a U-turn without obeying traffic lights: 1. The first situation: As long as the U-turn action does not cross the stop line of the lane, this behavior generally does not require consideration of traffic lights. For example, dedicated U-turn lanes, single yellow dashed lines, single-side dashed lines of double yellow lines, or yellow grid markings on the ground can all be legally crossed without passing through the stop line of the left-turn lane. 2. The second situation: The lane markings on the ground are also dashed lines, but the lane signal has a dedicated U-turn traffic light. In this case, the priority principle should be followed to determine the right of way—on-road traffic police commands take precedence over traffic signals, and traffic signals take precedence over ground markings.