Under what circumstances can you make a U-turn at a red light?

[DeAlexander]

There are 2 situations where a U-turn is allowed at a red light: marked road lines or the absence of a left-turn waiting area. Here is more relevant information: 1. Marked road lines: If one or both of the double solid yellow lines in the middle of a two-way road are dashed, a U-turn is permitted. You can ignore the traffic light and directly make a left-turn U-turn, provided it does not affect the normal flow of oncoming traffic. 2. U-turn situation without a left-turn waiting area: This can generally be divided into two scenarios. The specific approach is the same as making a U-turn with a left-turn waiting area, except that when there is a U-turn sign and the left-turn signal is green, the vehicle must not cross the zebra crossing during the left turn and must not affect the movement of oncoming traffic.