When driving in the left-turn lane and there is no U-turn light, when the vehicle is driving in the left-turn lane and does not pass the stop line, and there is a dotted line at the intersection, the U-turn is not restricted by the red light, but other vehicles should be avoided.

The second case:

When driving in the left-turn lane, when the vehicle does not pass the stop line and there is a U-turn passage in the isolation facility at the intersection center, the U-turn is not restricted by the red light at this time, but other vehicles should be avoided.

The third situation:

When driving in the left turn lane, there is no U-turn light, no dotted line at the intersection, no gap at the guardrail, and drive according to the red light ahead. When the light is green, you can turn around after crossing the stop line and sidewalk.

The fourth situation:

When driving in the left turn lane, there is a U-turn light at the intersection, there is no dotted line at the intersection, and there is no gap in the guardrail. Drive according to the U-turn light. When the light is green, you can turn around after crossing the stop line and sidewalk.