How many seconds should the handbrake be engaged during a hill start?

[ReidRose]

Three seconds. Below is the extended content: After climbing the slope, carefully observe the benchmark and the dotted line marking the parking area on the slope. It is essential to stay focused, avoid excessive speed, and slowly approach the slope's top marker. Pay attention to the coordination of your feet during a hill start: The driver must concentrate and coordinate hand and foot movements. After releasing the brake with the right foot, gently press the accelerator, depress the clutch with the left foot, and then shift into first gear with the right hand. Release the handbrake while gently pressing the accelerator. Additional notes: When the car starts moving forward, keep the clutch pedal steady to ensure a smooth start, then slowly release the clutch pedal until fully engaged; if the car does not move or roll back, slowly release the clutch pedal. Once the car moves, hold the clutch pedal steady, and after the car starts smoothly, slowly release the clutch pedal until fully engaged; in case of a failed start, promptly engage the handbrake and proceed with a standard hill start; try to press the front part of the brake pedal with the right foot, applying more force to the brake pedal than the accelerator to prevent insufficient braking force causing the car to roll back; stalling or rolling back after starting. The clutch control requirement for the hill start in Subject 2 is also very high. First, the clutch must reach the semi-engaged state before releasing the handbrake. Poor clutch control in this task will likely result in failure.