How to Determine the Distance Between the Front of the Car and an Obstacle Ahead?
1 Answers
Rely mainly on the side mirrors on both sides of the vehicle for judgment. The specific steps are as follows: Using Radar or Rearview Camera: Most vehicles are equipped with rear radar or a backup camera to assist in position judgment. However, beginners may struggle with accurately estimating the distance between the front of their car and an obstacle, often parking too far or too close. One effective method to determine the front position is to use a reference point, with the best reference being the side mirrors. Determining the Distance Between the Front of the Car and an Obstacle Ahead: For most sedans, the rear bumper is approximately 42 cm above the ground. When you can see the lower edge of the front vehicle's tire, the distance between your car and the obstacle is about 4.6 meters. If you see the lower edge of the front vehicle's bumper, the vertical distance is about 45 cm, and the actual distance is roughly 2.5 meters. When you see the upper edge of the front vehicle's bumper, the vertical distance is about 65 cm, and the actual distance is approximately 0.8–1 meter. During parallel parking, if you see slightly above the upper edge of the front vehicle's bumper (vertical distance ~70 cm), exercise extreme caution, as your car is only about 30 cm away from the obstacle. Determining the Distance Between the Front of the Car and a Pedestrian: When you see a pedestrian's heels, the distance is about 4 meters. If you see their knees (vertical distance ~45 cm), the distance is roughly 2.5 meters. When you see their hips (vertical distance ~75 cm), the distance is very close, and it's time to brake, as your car is only about 30 cm away from the pedestrian.
