What are the techniques for judging 30cm in hill start and stop?
2 Answers
Hill start and stop at 30cm can be determined by the following methods: 1. Observe the raised part of the wiper: From the driver's position, when the raised part of the front windshield wiper aligns with the right edge of the road outside, the distance between the car body and the roadside is approximately 30cm. 2. Look at the one-third point of the car's front: From the driver's seat, when the right one-third point of the car's front aligns with the right edge of the road outside, the distance between the car body and the roadside is exactly 30cm. 3. Observe the right front door handle: Through the right rearview mirror, when the outermost point of the right front door handle is tangent to the road edge outside, the distance between the car body and the roadside is exactly 30cm.
When learning how to judge the 30 cm distance for hill-start parking, I have a habit: first find a reference point, like aligning the raised part on the wiper with the edge line of the slope, then slowly drive up until the front of the car is approximately at the designated position before stopping. This requires a lot of practice to get the feel right, and controlling the speed is crucial—don’t go too fast, or you might stop too far or too close. When teaching others, I always say, 'Don’t panic, focus on the reference points, check the mirrors, and take it slow.' The key is the rearview mirror angle—align it with the roadside line, maintain the 30 cm distance, and lightly press the brake to prevent the car from rolling back. When starting, don’t rush either: hold the brake, shift gears, gently release the clutch to the semi-engaged point, feel the car vibrate, then release the brake for a smooth start. Practice more with simulation training—find an empty slope to repeat the process, time yourself with a phone, so you won’t be nervous during the test. Remember, safety first—don’t make mistakes just to save time.
