
Variable lanes are used according to their changing directions. Vehicles entering a variable lane must follow the direction indicated by the signage. The direction of a variable lane is determined by traffic flow—when left-turn traffic is heavy, the variable lane will switch to left-turn mode to alleviate pressure, and similarly, it will switch to right-turn mode when right-turn traffic is heavy. Once the lane changes to a turn-only direction, straight-through driving is no longer allowed, as the lane typically alternates between turning and straight-through directions. This type of lane is primarily designed for sections where traffic is concentrated during peak hours but lanes are insufficient, or where traffic flow differs significantly between morning and evening rush hours. Based on the characteristics of traffic flow during different periods, the direction is flexibly adjusted to alleviate congestion. Once a vehicle enters a variable lane, it must follow the direction indicated by the overhead signage. After entering a variable lane, drivers must not cross the line to change lanes, as this may result in a fine and a 3-point penalty if caught by electronic enforcement. Vehicles in a variable lane are also prohibited from making U-turns or speeding, which may likewise lead to fines and a 3-point penalty. The direction of the variable lane will not change if there are vehicles within 100 meters of the stop line. Violations occur only when drivers fail to follow the required direction—for example, driving straight when the lane is marked for left turns will definitely result in a penalty.

During my daily commute in rush hour, I often encounter variable lanes, which are really helpful but also prone to mistakes. The rules are actually simple: mainly watch the overhead signal lights. If a green arrow is lit, it means the lane is available in that direction; if it's a red X, don't enter. Don't listen to what others say—the signals change in real-time, sometimes switching directions in just a few minutes. Remember, during peak hours, like in the morning when traffic is heavy into the city, the signal may only allow inbound traffic, and the opposite in the afternoon. A common mistake is drivers not looking at the lights and blindly following the car in front, which can lead to dangerous head-on collisions. So my approach is to slow down and assess the situation as soon as the signal changes. These lanes are usually in the middle of main roads, and the transition area may have warning signs indicating signal changes—don't ignore those signs. I think you'll get used to it; the key is to drive through a few times to familiarize yourself with the rhythm.

Safety is my top priority while driving, and variable lanes require extra attention to rules to prevent accidents. The most basic rule is to keep an eye on the traffic signals: only proceed in the direction of the green arrow, and never enter a lane marked with a red X—no hesitation. When signals change, warning lights may flash, so I always slow down in advance to avoid sudden braking. The reason? Violating these rules not only risks a ticket but also increases the likelihood of serious collisions, especially during peak hours in heavy traffic. I’ve witnessed several close calls caused by drivers misjudging the lane direction. My advice: use navigation apps to identify variable lane locations and make it a habit to frequently check overhead signals. The starting points of variable lanes often have elevated signals—don’t get distracted by the road surface. Another key point: poor weather increases the risk of mistakes, so exercise extra caution in rain or haze to correctly identify signals.

When I first started learning to drive, the variable lanes really confused me, but the rules are actually straightforward: just follow the traffic signals. A green arrow means you can enter the lane in that direction; a red X means don't enter and you should choose another route. These lanes are usually located in the upper center of the road, and the signals change in real-time based on traffic flow. Don't panic—the traffic signals dictate everything, regardless of how other cars are moving. A common mistake among beginners is blindly following other drivers, which can lead to traffic jams or fines. Simply obeying this rule ensures safety.


