What is the purpose of the three-line rule for the hill start in Subject 2?

[DeRylee]

It is to confirm whether the front of the car is parked in the correct position. The following is a related introduction to Subject 2: 1. Overview: Subject 2, also known as the small road test, is part of the motor vehicle driver's license assessment and is the abbreviation for the field driving skills test. The test items for cars C1 and C2 include five mandatory items: reversing into a garage, parallel parking, stopping and starting on a slope, turning at a right angle, and driving on a curve (commonly known as the S-curve). Some regions also include a sixth item: collecting a card on a highway. 2. Teaching aids: Teaching software: Students can learn traffic regulations through driver simulation test software on mobile or computer terminals. Teaching books: "Safe Driving Starts Here," compiled by the Ministry of Transport of the People's Republic of China. Driving learning materials can be uniformly purchased and distributed by the driving school or purchased by students at their own expense.

[MaverickLee]

As a driving instructor, these three lines are the lifelines for hill starts. The one closest to the front of the car is the bumper stop line—stopping beyond 30cm means an immediate fail, so I teach students to adjust wheel spacing by checking the right rearview mirror. The middle solid yellow line is the wheel position line; if the rear wheels press or exceed 50cm, it’s a 10-point deduction—I have them align the wiper’s raised point with the curb. The top stop line requires the bumper to stay strictly within the solid line; covering the dashed line with the hood means failure. Every practice session must strictly monitor these three lines, as they relate to rollback risks and engine stalling. A mistake in hill starts on real roads could even lead to a rear-end collision.

[OJackson]

A student who has taken the test three times tells you that those three lines are all free points! For the first line, when the hood covers the roadside line, the distance on the right is within 30cm—no need to foolishly stick your head out to check. The middle yellow line is safest when aligned with the lower edge of the left rearview mirror; even if the rear wheel touches the line, it’s just a point deduction. For the top stop line, I simply memorize the wiper node—when it hits the pole, slam the brakes. Once, I forgot to release the handbrake and almost rolled backward, turning the examiner’s face green, but luckily I didn’t cross the solid yellow line at the very back. With practice, you’ll realize these three lines are like a coordinate system to help you position, far more reliable than relying on roadside trees.

[MilaLynn]

Back when I took the driving test, I dreaded the hill start the most. Now as a coach, I finally understand the purpose of those three lines. The front bumper must stay within the first line to prevent parking too close to the curb and hitting guardrails. The middle wheel alignment line prevents rear wheels from damaging curbstones and, more importantly, trains students to judge side distances. The top stop line functions like a traffic light stop line, forcing precise brake control. Don't underestimate these three painted lines - touching any during practice meant point deductions. In real driving, parking too close to the edge on a slope could make your door hit guardrails when opened.