How to Determine the Position of the Rear Wheels Using Rearview Mirrors?
1 Answers
Methods to determine the position of the rear wheels using rearview mirrors are as follows: 1. When the rearview mirror is adjusted to a state where it provides a far and wide view, the rear wheel arches indicating the position of the rear wheels will appear within the driver's field of view in the mirror, allowing the driver to visually observe the rear wheel position through the mirror; 2. Adjusting the rearview mirror to a reasonable optimal angle may result in the horizon being positioned at the 1/2 point of the mirror and the car body occupying 1/4 of the mirror, but the optimal angle is not necessarily achieved just because the horizon is at the 1/2 point and the car body occupies 1/4 of the mirror. More details are as follows: 1. In the reflection of the right rearview mirror, if the rear vehicle is positioned at the center of the mirror, it indicates that the rear vehicle is approximately 15-20 meters away from us, and turning operations can still be safely performed at this distance. 2. When the rear vehicle is close to the boundary between the safe zone and the danger zone, it is about 5 meters away from us, and extra caution should be exercised; turning with signals is still safe at this point. 3. If the rear vehicle has entered the left danger zone of the left rearview mirror, it is very close to us, and turning operations are not advisable. Since the right rearview mirror is the farthest from the driver, observing through it is the most challenging, but with careful observation, the distance can still be accurately judged. 4. When adjusting the height of the rearview mirror, under the premise of ensuring the longest observable distance, the mirror should be angled to reflect more of the ground, considering the mirror's conditions (mirror area and curvature), as cars do not travel in the air. For a wider viewing angle, having the car body occupy 1/4 of the mirror is not necessarily justified.
