How Wide is the 30 Centimeters in Subject Two?

[LeJayce]

Subject Two's 30 centimeters refers to the distance between the right side of the vehicle and the right boundary line being 30cm. Dividing the Front Third of the Vehicle: Divide the vehicle into three equal parts. While driving, adjust the vehicle's position so that the front one-third of the vehicle aligns with the right boundary line. At this point, the distance between the right side of the vehicle and the boundary line is approximately 30cm. Observing the Windshield Wiper: Look at the windshield wiper and align its highest point with the boundary line while moving forward. Another method, though less commonly used but still effective, is to align the gap in the wiper with the boundary line while moving forward. At this point, the distance between the right side of the vehicle and the boundary line is approximately 30cm.

[TaylorMarie]

In Subject 2, that 30 centimeters is roughly the width of three smartphones put together. Driving instructors teach us to check the right rearview mirror—when there's just a finger's width gap between the car and the sideline, it's perfect. During practice, you can use a tape measure to get a feel for it; with enough repetition, your body will remember. During the test, maintaining this distance is crucial—exceeding it on the slope fixed-point stop will cost you points or even lead to failure. Think of the raised marks on the wipers: when they align with the road markings, it's about three fist-widths apart, making it much easier to remember. Essentially, 30 centimeters ensures enough turning space—too narrow and the rear wheels hit the line, too wide and the left side may cross. With daily practice in Subject 2, you'll gradually develop a feel for it without constantly fussing over the rearview mirror.

[AliviaAnn]

During the practice for Subject 2, I figured out that 30 centimeters is roughly twice the length of an adult male's foot. The instructor emphasized that when checking the rearview mirror, there should be a space equivalent to a water bottle between the car body and the sideline. This distance is crucial for the test—for instance, if the position isn't accurate during parallel parking, it's easy to hit the curb. Finding reference points is essential; aligning the lower right corner of the windshield with the sideline usually meets the standard. Using reference objects reduces errors, especially for beginners. This distance setting prevents beginners from getting too close to the edge, avoiding scratches. Back when I was taking the driving test, I practiced dozens of times daily by drawing lines with chalk in the yard until muscle memory kicked in and the nerves faded.

[SophiaLee]

30 centimeters is the same as 30 cm, roughly the length of an A4 paper. During driving lessons, the instructor asks to align the right bulge of the hood with the sideline, which is about this distance. In the test, exceeding 30 cm during hill starts deducts 10 points, so be careful. If the car line and sideline appear one finger width apart in the rearview mirror, the position is correct. This standard allows room for adjustment without affecting traffic.