What are the techniques for judging following distance?
1 Answers
During the driving process, it is necessary for us to accurately judge the distance between vehicles. The following is a detailed introduction to methods for judging vehicle distance: 1. Using the rearview mirror to judge the distance of the following vehicle: According to the physical principle that objects appear larger when closer and smaller when farther away, when the image of the following vehicle occupies one-third of the rearview mirror, the distance should be 12 meters; when the image occupies half of the rearview mirror, the distance is 9 meters; when the image occupies the entire rearview mirror, the distance is 3 meters. 2. Judging the distance to the vehicle in front during urban driving: When we can see the rear bumper of the vehicle ahead from the driver's seat, the distance is approximately one meter; when we see the lower edge of the bumper, the distance is about two meters; when we see the rear tires of the vehicle ahead, the distance is about 3 meters. 3. Using roadside reference objects for judgment: When driving on highways, because the following distance is larger, the above methods cannot be used. At this time, fixed roadside objects such as lamp posts can be used as references to judge the distance and help control the following distance. Generally, the distance between two adjacent lamp posts is equal and 50 meters, and the distance of three lamp posts is approximately equivalent to the normal following distance on highways, which is 100 meters. When observing, we should pay special attention: if the time it takes for the vehicle ahead to travel from one lamp post to the next decreases, it indicates that the vehicle is moving quickly, and we can accelerate accordingly. Conversely, if the time increases, the speed is slower, and we should appropriately reduce speed.
