Is it allowed to make a U-turn at an intersection without traffic lights?

[DeJosiah]

It is allowed to make a U-turn at an intersection without traffic lights. The situations where U-turns are permitted are as follows: Presence of U-turn signal lights or signs: When there is a U-turn signal light at the intersection, a U-turn can be made when the U-turn indicator is green; if there is a U-turn sign or a lane marking indicating U-turns is allowed, a U-turn can be made while ensuring the safety of oneself and others. No U-turn sign but left turns are allowed (no prohibition of U-turn signs): Vehicles can make a U-turn at intersections where left turns are permitted and there are no signs or markings prohibiting U-turns. It is important to note that vehicles should proceed according to the left-turn lane signal light without affecting the normal traffic flow of other vehicles. If making a U-turn at an intersection with a left-turn waiting area, you can first enter the left-turn waiting area when the straight signal is green and wait until the left-turn signal turns green before making the U-turn. U-turns are allowed at dashed lines: Whether it is a white or yellow dashed line, U-turns are permitted. For double yellow lines with one solid and one dashed, check if your side is the dashed line—if it is, a U-turn can be made safely; if it is solid, U-turns are not allowed. If encountering double yellow lines at an intersection, a U-turn can be made on the dashed side, but you must not cross the stop line ahead. U-turns are allowed at yellow grid lines: Parking is prohibited in yellow grid areas, but as long as there is no central barrier, you can make a U-turn here after yielding to normally moving vehicles. U-turns are allowed on the dashed side of a green belt: When the front of the green belt is a dashed line, vehicles on that side can make a U-turn from there. When the front of the green belt is a solid line, vehicles must follow the traffic signal, cross the pedestrian crossing before making a U-turn, and are prohibited from making a U-turn by crossing the solid line or the pedestrian crossing.