How to Judge the Distance of the Rear Vehicle Using the Right Side Mirror?
2 Answers
The method to judge the distance of the rear vehicle using the right side mirror is as follows: 1. When the rear vehicle occupies more than half of the right side mirror area: Only half of the vehicle body is visible. At this time, the rear vehicle is very close. You should maintain your current lane, avoid making right turns, changing lanes to the right, or emergency braking, while observing the movement of the rear vehicle and being prepared to yield at any time. 2. When the rear vehicle occupies half of the right side mirror area: The entire vehicle is visible. At this time, the rear vehicle is about 10,000mm away. You can perform operations such as turning on the signal, making a right turn, changing lanes to the right, or braking slowly when the speed is slow and safety is ensured. 3. When the rear vehicle occupies less than half of the right side mirror area: The entire vehicle is visible. At this time, the rear vehicle is more than 15,000mm away. You can perform normal operations while ensuring safety.
In my driving experience, accurately judging the distance of vehicles in the right rearview mirror is very practical, mainly by observing the size changes of the vehicles in the mirror. When the entire body of the rear vehicle can be fully seen in the mirror, the distance is usually more than 20 meters, making lane changes relatively safe. If part of the vehicle is cut off by the edge of the mirror, leaving only about half visible, then the distance is around 10 meters and quite close. If the vehicle almost fills the mirror, it means the distance is less than 5 meters, requiring extra caution. I adjust my judgment slightly based on speed; for example, at high speeds, the sense of distance changes more rapidly. I always ensure the mirror angle covers the right rear shoulder to minimize blind spots and recommend purchasing a small blind-spot mirror for more precise assistance. Developing a habit of regularly cleaning the mirrors is essential, as rain or dust can blur the view and lead to misjudgments, especially when driving in the rain. Practicing these details can significantly enhance driving safety.
