
When turning left or preparing to turn left, it is not mandatory to enter the left-turn waiting zone. However, if there are vehicles behind you and the straight-through signal is green, not entering the waiting zone may obstruct the traffic flow of the following vehicles. In such cases, you should enter the left-turn waiting zone. Correct ways to enter the left-turn waiting zone: When both the left-turn signal and the straight-through signal are red: If both signals are red, vehicles must not enter the waiting zone and should stop behind the stop line. Otherwise, it will be considered as running a red light. When the straight-through signal is green: If the straight-through signal is green, even if the left-turn signal is red, vehicles intending to turn left can enter the waiting zone and wait for the left-turn signal to turn green. When the left-turn signal is green: If the left-turn signal is green, vehicles intending to turn left should proceed through the intersection immediately. When the left-turn signal is yellow: If the left-turn signal is yellow and the vehicle has not yet entered the waiting zone, it must stop before the stop line and should not enter the waiting zone.

I've been driving for over a decade and encountered all kinds of road conditions. The left-turn waiting zone is designed to alleviate congestion, and vehicles should typically enter it when the straight-through traffic light turns green. For instance, during morning and evening rush hours, if the car in front doesn't enter the waiting zone, the following vehicles are forced to stop behind the stop line. When the left-turn light eventually turns green, only the first few cars can pass through, leaving the rest to wait for another light cycle, causing the entire lane to become gridlocked. However, it's important to stay observant—if the ground markings in the waiting zone are worn and unclear, or visibility is poor due to rain, it's safer to wait for the left-turn green light before proceeding. Another advantage of entering the waiting zone is reducing the starting time, allowing for quicker passage through the intersection.

Last time at an urban intersection, the left-turn signal had 50 seconds left, but the car in front stubbornly refused to enter the advanced stop line area. As a result, only four cars managed to pass when the light turned green, leaving over a dozen vehicles stuck behind. I specifically checked the traffic regulations manual - for these advanced stop line zones with ground arrows and guidance signs, entering during a straight-through green light is completely , just as safe as stopping at an ordinary stop line. What actually requires attention is maintaining proper distance from the vehicle behind to prevent sudden braking situations. However, during heavy rainstorms or fog when road markings become unclear, or when the advanced stop line is blocked from view by buses, it's better not to force entry under such circumstances.

Just encountered this scenario two days ago while dropping my son off at school. The straight-through light was green while the left-turn signal was red, and the SUV driver ahead hesitated to enter the advanced stop area. Actually, that zone is about ten meters before the stop line, marked with bright white grid lines. There are three key points to note when entering such an advanced stop area: ensure the entire vehicle is within the grids, do not proceed further after the red light turns on, and avoid crossing the opposite crosswalk when turning. During the 7:30 AM rush hour, allowing five or six more cars per light cycle significantly eases traffic congestion. However, for novice drivers who aren't yet fully confident about their vehicle's dimensions and worry about scrapes, waiting in the lane isn't considered a traffic violation.

As a newbie, I was most afraid of this kind of intersection! The instructor taught me: the waiting zone is essentially an 'advanced waiting area'. Entering when the straight-ahead light is green is equivalent to waiting on a safety island for the left turn opportunity, which is further ahead than stopping at the stop line. Typical situations where you must enter include: clear left-turn arrows on the ground, electronic signs displaying 'Please enter the waiting zone', or when dense traffic behind requires flow guidance. However, when visibility is less than 50 meters in foggy conditions, the road is icy and slippery, or the waiting zone is occupied by accident vehicles, stay in the original lane and wait. Remember to observe signal changes, as sometimes traffic police manually control and suddenly disable the waiting zone function.

Last Friday during the evening rush hour, I counted: entering the advanced waiting zone allows 4 more cars to pass through each cycle. The principle is simple – it extends the left-turn queue area forward by 10 meters. The signal rules to follow are: when the straight-through light turns green while the left-turn light remains red, vehicles may enter the waiting zone; turn immediately when the left-turn light turns green; but if the left-turn light starts flashing, you must stop even if already in the waiting zone. Also pay attention to the end of the waiting zone – don’t let your vehicle exceed the boundary, otherwise it will block cross traffic. On suburban roads with light traffic or during late-night hours, some drivers choosing not to enter doesn’t affect traffic flow, but during morning/evening rush hours at downtown intersections, using it properly can save everyone considerable time.


