
There are also text prompts on the ground to remind drivers to choose their desired lane in advance according to the traffic signals. Once entering the solid line area of a variable lane, drivers must not cross the solid line to change lanes arbitrarily, nor proceed straight when the left-turn signal is on or turn left when the straight signal is on. They must follow the direction indicated by the traffic signals.

After commuting by car for so many years, passing through variable lanes daily, just watch the overhead signals: the large arrow indicators above the lane. A green arrow pointing left or right means the lane is open in that direction; stop and wait when it's red. During peak hours, changes happen quickly, so I’ve gotten used to slowing down early, leaving a safe distance, and glancing at the arrow changes out of the corner of my eye. On rainy or foggy days with poor visibility, I turn on my headlights from farther away to help see clearly. The signal system adjusts intelligently based on traffic flow—more straight lanes in the morning rush, switching to left turns in the evening. I often remind friends to stay calm, avoid tailgating, and not miss signal changes. During city congestion, navigation apps can also help by alerting you in advance about lane signal adjustments.

As a newly licensed driver, I'm extra cautious when driving in variable lanes: keeping a close eye on the position of the signal arrows—usually at the lane entrance or overhead—only entering when the green arrow is lit, and patiently stopping at red arrows. I remember my first time driving in one, following the car ahead too closely and almost missing the signal change, which could have caused trouble. My advice is to slow down and observe the arrow's color and direction, not just the car in front. The signals often change during rush hours, so I keep a little reminder with me on my phone: 'Watch the arrow, wait for green.' On rainy days or at night when signals are less clear, it's even more important to focus on light changes. Keep your windshield clean, and if needed, ask a passenger to help check the signal to ensure safe entry.

With decades of driving experience, I find variable lane signal lights straightforward: the arrow indicators are clear—a green arrow shows the permitted direction of travel for the lane, while a red arrow means stop. Always check the overhead signs in advance and act decisively, as flashing yellow lights often signal an upcoming lane change. Simply put, green means go and red means stop—safety first. Road markings complement the light signals, so just keep an eye on the changing lights ahead while driving.


