How to Judge the Distance Around the Car While Driving?
3 Answers
Judging the distance around the car while driving: Determine based on the position of the left wheel; use the side mirrors; check the distance between the vehicle and the roadside through the rearview mirror; the front and rear distances can also be judged with the bumper as the central point. The specific methods for judging the distance around the car while driving are as follows: 1. Determine based on the position of the left wheel: When the line of sight aligns the protruding node of the wiper with an object on the ground, the left wheel will run over that object while moving. 2. Use the side mirrors: Observe the distance between the vehicle and the lane dividers to adjust the vehicle's position. You can also use markers on the dashboard or hood to check the left and right distances. When observing the left lane divider, you can generally drive along the left lane divider with the edge of the left headlight, keeping the vehicle centered in the lane. Alternatively, you can use the right side of the dashboard, slightly to the right of the center point, to align with the lane divider and keep the vehicle centered. 3. Check the distance between the vehicle and the roadside through the rearview mirror: This helps avoid running over the curb or getting too close and scratching the wheel hub. Inside the car, you can also observe the distance between the vehicle and the curb by using a target point about 10 cm to the right of the dashboard's center point. When this point overlaps with the curb, the distance between the wheel and the curb is approximately 20 cm. 4. Use the bumper as the central observation point: When you can no longer see the rear bumper of the car in front, do not get any closer, as the distance is only 0.3 meters. It is advisable not to get too close, even if you are not worried about hitting the car in front when starting, as the car in front might roll back, causing greater danger.
Having driven for thirty years, I judge distances mainly through experience and habit. For the distance ahead, I check the rearview mirror to see the size of the car behind; if it rapidly grows larger, it's too close, and I should brake. For left and right distances, I often align the lane markings with the edges of my car—for example, using the side mirrors to reflect the roadside lines—which helps me position accurately when turning or changing lanes. When parking, I rely on shadows or the reversing radar but always turn my head to check blind spots, ensuring no people or objects are hidden. New drivers often overlook the importance of adjusting their mirrors correctly; once set at the right angle, visibility improves significantly. In rain or snow when visibility is low, I turn on my headlights and leave an extra half-second safety gap—these details become second nature with practice. While driving, I stay focused and avoid distractions; even listening to music isn’t too loud, as maintaining alertness is most important.
Safe driving is my top priority, and I adhere to several core habits for judging distances in all directions. For the front, I use the three-second rule: pick a fixed point as a timer to ensure at least two seconds of reaction time. When changing lanes left or right, always check blind spots before signaling. Adjust mirrors daily to monitor changes in vehicle reflections; use sensors but don’t rely entirely on them—practice turning your head for more reliable observation. In fog or at night, be extra cautious and leave more space, practicing parking with roadside lines as reference angles. New drivers may feel nervous, but taking it slow is key. Remember, never drive when fatigued—stay alert. These habits are highly effective in preventing accidents, ensuring smooth and worry-free driving.
