What is the braking distance for the Category 3 test?

[CollinLee]

According to the voice prompt, you should decelerate (by applying the brake and downshifting if necessary) within 3 seconds. Theoretically, during the Category 3 test, when approaching intersections or pedestrian crossings, you should start braking 100 meters ahead to slow down. Once the Category 3 braking system recognizes the action, gently release the brake pedal: 1. If you observe that the road ahead requires slowing down, regardless of your current speed, be prepared to brake and decelerate. 2. Approximately 20 meters before the deceleration zone, prepare to slow down. Some test centers may have deceleration signs or markings in the deceleration area, which can serve as reference points. Braking too early is ineffective because the system hasn't started recognition yet. 3. When decelerating, release the accelerator with your right foot and lightly press the brake (the pressure depends on your speed, but since Category 3 driving speeds are generally low, a slight press is sufficient), then hold for 2 seconds.