What is the Definition of Lane Change Completion?
2 Answers
A lane change is considered complete when the vehicle inevitably deviates and crosses the original lane divider, then adjusts its direction to proceed along the new lane, establishing a state of driving along the new lane. Below are precautions for lane changing: Avoid the habitual release of the accelerator during a lane change, which may cause gear disengagement; Yield to vehicles in the lane you are entering; Do not change more than two lanes at once; When vehicles from both the left and right lanes are changing into the same lane, the vehicle on the left must yield to the one on the right. Below are the evaluation criteria for lane changing in Subject 3 of the driving test: 1. Before changing lanes: Failing to observe the traffic conditions behind through the interior and exterior rearview mirrors results in disqualification. 2. During the lane change: If the judgment of the vehicle's safe distance is unreasonable and hinders the normal driving of other vehicles, it results in disqualification. 3. Turn signal usage: Failing to use or incorrectly using the turn signal before changing lanes deducts 10 points. Turning the steering wheel less than 3 seconds after activating the turn signal before changing lanes deducts 10 points.
In my career as a driving instructor, completing a lane change refers to when your entire vehicle has smoothly entered the new lane, the wheels are kept straight, the turn signal is turned off, and the car is no longer shaking or swaying. The entire process should start with turning on the turn signal—at least a few seconds in advance—to let surrounding vehicles know your intention, followed by carefully checking the rearview mirror and side blind spots to ensure no cars are approaching. Maintaining a stable speed is crucial—avoid sudden braking or rapid acceleration, and match the flow of traffic. Once you steer into the new lane and feel the car is steady without any drifting sensation, only then is it truly complete. I often remind students that rushing a lane change can force the following car to brake suddenly, increasing the risk of rear-end collisions, so practicing patience and forming good habits is key. Safety comes first, and developing proper techniques can significantly reduce risks.
