What is the technique for maintaining a 30cm margin in Subject 3?
3 Answers
Look at the inner side of the solid white line on the roadside, align the center line of the car's front with the inner side of the solid white line. When you feel that the center line and the inner side of the solid white line intersect, straighten the steering wheel, press the clutch and brake to stop, and the position will be exactly 30cm. Here are some additional information: 1. Subject 1: Road traffic safety laws, regulations, and related knowledge test subjects. The structure of the test question bank and basic question types are formulated by the Ministry of Public Security, and provincial public security traffic management departments establish their own test question banks based on local conditions. 2. Subject 2: Field driving skills test subjects, including test items such as reversing into a garage, stopping and starting on a slope, turning at a right angle, driving on a curve, and parallel parking. 3. Subject 3: Road driving skills test subjects, including basic test items such as preparation before starting, driving in a straight line, changing lanes, passing intersections, parking by the roadside, passing pedestrian crossings, passing school zones, passing bus stops, meeting vehicles, overtaking, making U-turns, and driving at night. 4. Subject 4: Safe and civilized driving knowledge, test items: knowledge related to safe and civilized driving.
I practiced parallel parking countless times before the exam, and the instructor always emphasized that 30 centimeters is the golden distance. At first, I couldn't get it right, but later I learned a few tricks: slow the car down to a crawl, focus on the right side mirror, and keep the gap between the car body and the curb about the width of a fist in the mirror. Make small adjustments to the steering wheel—don’t turn sharply, or you might hit the curb. Keep the car body as parallel as possible while moving forward, and use the lower right corner of the front window to gauge the position of the right front wheel relative to the edge of the curb. I habitually used the white line in the rearview mirror to fine-tune my position, and with enough practice, muscle memory kicked in. I also simulated parking in open spaces whenever I had free time—practice makes perfect.
This is a common issue I encounter when teaching students, and the key lies in several steps: First, reduce speed to the lowest gear and maintain a steady forward motion. Focus your eyes on the gap between the car's side and the curb in the right rearview mirror—the ideal 30 centimeters is roughly the length of a finger in the mirror. Steering adjustments should be minimal, not exceeding 10 degrees, otherwise the car may veer off. A frequent mistake students make is turning their heads to check the passenger seat or relying on feel, resulting in increasingly crooked parking. I remind them to plan their path in advance, using specific points on the car as references, such as aligning the lower edge of the right rearview mirror with a roadside marker. With repeated practice, they’ll find the rhythm.
