When driving a motor vehicle, U-turns are prohibited in the following situations: at locations with no U-turn signs or markings; at locations with no left-turn signs or markings; at railway crossings; on pedestrian crosswalks, bridges, sharp curves, steep slopes, inside tunnels, or on road sections where hazards are likely to occur. U-turns are allowed under the following circumstances: When there is a U-turn traffic light or sign: At intersections with U-turn traffic lights, a U-turn can be made when the U-turn light is green. At intersections with U-turn signs or lanes marked with U-turn indicators, a U-turn can be made while ensuring the safety of oneself and others. When there is no U-turn sign but left turns are allowed (and no no-U-turn signs or markings are present): Vehicles can make a U-turn at intersections where left turns are permitted and no no-U-turn signs or markings are present. It is important to note that the vehicle must proceed according to the left-turn lane traffic signal without affecting the normal movement of other vehicles. If making a U-turn at an intersection with a left-turn waiting area, the vehicle can first enter the waiting area when the straight-through light is green and wait until the left-turn light 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 the side you are on is dashed. If it is dashed, a U-turn can be made safely; if it is solid, a U-turn is not allowed.
