
Whether you can make a U-turn at a green light for straight traffic depends on whether the traffic signal has a left-turn indicator. If there is a left-turn indicator and it is red, making a U-turn is not allowed and would be considered a traffic violation. If there is no left-turn indicator and only a circular green light without an arrow for straight traffic, a U-turn is permitted. Scenarios where U-turns are prohibited include: U-turns are prohibited where there is a 'No U-Turn' or 'No Left Turn' sign: If there is a 'No U-Turn' sign, U-turns are not allowed at that intersection. Since a U-turn is an extension of a left turn, if there is a 'No Left Turn' sign at an intersection, U-turns are also prohibited there. U-turns are prohibited at crosswalks: U-turns are not allowed at crosswalks. If U-turns are permitted at an intersection, you must cross the crosswalk before making the U-turn; you cannot make the U-turn while on the crosswalk. U-turns are prohibited when there is no left-turn lane: Even in the leftmost lane, if there is no sign permitting left turns, U-turns are not allowed. U-turns are prohibited in the second left-turn lane: When a vehicle is in the second left-turn lane, it cannot make a U-turn. In the absence of any signs, U-turns are only permitted in the innermost left-turn lane. U-turns are prohibited at solid yellow lines: U-turns are not allowed at solid yellow lines. Even if there is a sign permitting U-turns, you must wait for the green light and cross the stop line before making the U-turn. U-turns are prohibited on highways: Crossing the central divider to make a U-turn on a highway is illegal and will result in a fine and 12 penalty points. If you miss an exit on the highway, continue to the next exit and leave the highway; never attempt an illegal U-turn.

I often encounter this question: Can you make a U-turn when the straight-ahead light is green? Actually, it's not automatically permitted. Based on my driving experience, a green light for straight movement only guarantees you can proceed forward—it doesn't necessarily mean you can make a U-turn. In most cases, you need to check the specific signs at the intersection. If there's no 'No U-turn' sign and there's a left-turn arrow signal, you might be allowed to make a U-turn. However, if there's only a circular light without an arrow, making a direct U-turn would be a violation. I've even witnessed some beginners making this mistake, nearly causing rear-end collisions because other vehicles assumed they were going straight. The key is to observe the type of traffic signal and the turning markings on the road. For safety, it's best to slow down before the intersection and check if there's a designated U-turn area or signal indication. Every time I drive, I remind myself: Rules are there to protect everyone.

As a long-time driver, I must clarify this misconception: a green light for straight does not automatically mean U-turns are allowed. It primarily depends on the intersection setup, such as whether there are dedicated left-turn signals or no-U-turn signs. From a traffic regulation perspective, the green light only authorizes straight movement, while U-turns are considered turning maneuvers requiring additional indications. For example, at urban intersections, I often see U-turns prohibited when only the circular green light is on, but perfectly fine when the left-turn arrow is lit. Ignoring this can easily result in tickets or even collisions. So I recommend developing the habit of scanning traffic signals and signs every time you approach an intersection—don't consider it troublesome. This helps avoid dangers caused by signal misinterpretation.

When I first started driving, I was often confused about this issue, but now I've got it figured out. Making a U-turn on a straight green light is mostly illegal unless there's a clear left-turn signal. I remember once I mistakenly thought a green light allowed a U-turn and almost collided with oncoming traffic at the intersection—luckily, nothing happened. Since then, I always slow down first to check for any 'No U-turn' signs or dedicated left-turn lanes. On busy roads, it's safer to wait for a red light before attempting a U-turn. Simply put, don't take unnecessary risks, because the green light is only for straight-through traffic, and turning maneuvers require additional signal support.


