What does it mean to tread lightly before a flat tire and stop after a flat tire?

Realize that the brake pedal is lightly stepped on to slow down at the moment of tire puncture, and make sure to use the hand brake after tire puncture. Judging from the propaganda slogan when driving, stepping lightly before a flat tire means stepping lightly on the brake pedal to slow down until you stop smoothly when you find and realize that you are about to have a flat tire. After you confirm the puncture, you can apply the parking brake, that is, use the hand brake, which can well avoid the rollover of the vehicle and endanger personal safety.