Is U-turn Allowed Depending on Traffic Lights?

[Riley]

Generally speaking, at intersections with traffic lights, if there is no sign prohibiting U-turns on the left-turn lane, U-turns are allowed. Below is some information regarding U-turns and traffic lights: 1. Scenario: At signalized intersections, a U-turn sign indicates that U-turns are permitted. If there is a gap in the central median before the stop line, you can make a U-turn directly; if there is no gap, you need to wait for the left-turn green light (unless there is a sign indicating that U-turns are allowed when the straight-through light is red), otherwise you may be caught by traffic cameras. 2. Regulation: Article 49 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China" stipulates: Motor vehicles are not allowed to make U-turns at locations with signs prohibiting U-turns or left turns, as well as at railway crossings, pedestrian crossings, bridges, sharp curves, steep slopes, tunnels, or other sections prone to danger. Motor vehicles may make U-turns at locations without signs prohibiting U-turns or left turns, but they must not obstruct the normal passage of other vehicles and pedestrians.

[DavidMarie]

I've been driving for over a decade, and making U-turns definitely requires watching traffic lights. At regular intersections, it's just like turning left—you must wait for the left-turn green light before making a U-turn. However, some specially designed intersections have dedicated U-turn areas, such as gaps in the median, where you might not need to wait for a signal. But always pay close attention to road markings and signs. If you see double solid yellow lines or a no-U-turn sign, don't turn regardless of the light. Once, I made a U-turn at a red light in the city and almost collided with an e-bike, which gave me a real scare. Also, making U-turns at night requires extra caution—watch for oncoming traffic, as some drivers' high beams can make it impossible to see clearly.

[VanEva]

As a driving school instructor, I must emphasize that U-turns must comply with traffic signal rules. Vehicles making U-turns are generally classified as left-turn maneuvers and should follow left-turn signal indications. If there is a dedicated U-turn signal at the intersection, obey that signal instead. Always check road markings: double yellow dashed lines permit U-turns, while solid lines strictly prohibit them. Additionally, watch for no-U-turn traffic signs - these areas forbid the maneuver regardless of signal status. Making U-turns on red lights is illegal without special permission and frequently causes three-car pileups or pedestrian collisions. I recommend reducing speed below 10km/h during U-turns, keeping turn signals activated throughout, and ensuring 360-degree visibility with no blind spot hazards.

[VanNatalie]

When I first started driving, I wasn't sure whether I needed to pay attention to traffic lights when making a U-turn. Once, I made a U-turn at an intersection without waiting for the green light and got pulled over by a traffic officer who lectured me for quite a while. Now I understand: at most intersections, you need to wait for the left-turn green light to make a U-turn, especially when there's a stop line at the intersection. However, at the end of some T-junctions, you can sometimes make a U-turn without waiting for the light, provided there's no prohibition sign. The key is to check whether the lane divider is dashed or solid—if it's dashed, you can make a U-turn. I've developed a habit now: before making a U-turn, I quickly check the traffic light, glance at the road markings and rearview mirror, and especially at night, I stay alert for electric bikes that might suddenly appear.

[DiBenjamin]

Actually, making a U-turn can significantly disrupt traffic flow. I ride my bike to work every day and often see cars suddenly making U-turns at red lights, forcing cyclists to brake abruptly. This kind of dangerous maneuver is completely unnecessary—waiting for a green light only takes a few dozen seconds. There are three key points to pay attention to: first, check the traffic signal; second, look for any no-U-turn signs; third, watch out for oncoming vehicles. Some intersections have small signs that say 'U-turn permitted on red,' in which case you can turn but must yield to pedestrians. A special reminder: in rainy or foggy weather, U-turns should be performed even more slowly. When the road is slippery, tires can easily skid, so it's best to wait until all oncoming vehicles have passed before making the turn to avoid causing a chain reaction of accidents.

[Ricardo]

From traffic regulations perspective, vehicles making U-turns must obey traffic signals. At regular intersections, wait for the left-turn green light; if there's a dedicated U-turn signal, follow its instructions. Under special circumstances where a 'U-turn permitted on red' sign exists, the maneuver can be performed safely while yielding to through traffic and pedestrians. Pay attention to road markings: double yellow dashed centerlines permit U-turns, while solid lines prohibit them. Illegal U-turns incur a 200 yuan fine and 3 penalty points. For practical driving, it's recommended to change lanes to the leftmost side 500 meters in advance, activate the left turn signal, check mirror blind spots, and ensure safe clearance from pedestrians, bicycles, and approaching vehicles before completing the U-turn maneuver.