What are the techniques for judging distance while driving?

[OJuliet]

Here are specific techniques for judging distance while driving: 1. Using fixed reference points on the vehicle: When the midpoint of the vehicle's left rearview mirror aligns with the left sideline, the distance between the vehicle and the sideline is 1.5 meters. When the first wiper node of the vehicle is on the left sideline, the left wheel of the vehicle is pressing on the sideline. 2. Judging by the position of the white line: When the white line is at the midpoint of the engine hood, the right wheel of the vehicle is already on the line. When the white line is at the halfway point on the right side of the engine hood, the vehicle is 30 centimeters away from the right sideline. When the white line is at the one-third point on the right side of the engine hood, the vehicle is 60 centimeters away from the right sideline.

[DiFelicity]

When judging the distance between cars while driving, I believe the most crucial factors are experience accumulation and visual references. In my daily driving, I frequently use the rearview mirror to observe the distance of the car behind: if the car behind appears very small in the mirror, it means it's far away; if it fills the entire mirror, then it's too close, and I must immediately slow down to increase the distance. Another good method is the 3-second rule—I pick a fixed point on the roadside, and when the car in front passes it, I start counting: one, two, three, and only after three seconds do I let my car pass that point, ensuring a safe distance. At lower speeds in the city, I check if the wheels or license plate of the car ahead are clearly visible; at higher speeds on the highway, I count to 4 or 5 seconds for extra safety. Occasionally, I also use existing marks on the car as aids, such as the edge of the windshield as a reference. In rainy or foggy conditions with poor visibility, I slow down and double the distance to avoid skidding accidents. In short, practicing these techniques more often makes them second nature, and safety should always come first—never slack off.

[RhettLee]

Judging the distance between cars has always been a learning process for me. At the beginning, I often worried about rear-end collisions and relied on the 3-second rule: choosing a reference point like a streetlight or bridge pillar, counting aloud to three when the car in front passed it, and only then should my car pass it; if I couldn't count to three before reaching the point, I had to slow down and adjust the distance. I also learned to observe the size of the car behind me in the rearview mirror: a small car means it's far, a big car means it's close, making it easy to distinguish. After making a few mistakes of following too closely, I now practice comparing different distances in the mirror when parking. On fast-moving roads, I leave more distance because the braking distance is longer; on rainy days when the road is slippery, the distance should be doubled to prevent loss of control. By sticking to these methods, I gradually became less nervous, but safety is always my top priority, and I remind myself every day to maintain distance while driving.

[LaSilas]

I primarily use the 3-second rule to judge following distance: pick a roadside marker, when the car ahead passes it, I start counting to three before my car reaches the same point - otherwise the gap is too close. Visually, check if the rear wheels of the preceding vehicle are clearly touching the ground; clear visibility indicates sufficient distance. At higher speeds, increase the gap, such as counting longer on highways. Additionally, rearview mirrors help gauge the distance of trailing vehicles - the higher a following car appears in the mirror, the closer it is. During rain or fog, slow down and extend following distance to prevent skidding. These techniques become intuitive with practice.