Why does the car cross the left line in an S-curve?

[OFrancisco]

Because the steering wheel is turned too late when entering the second curve, which causes the left side to cross the line. When the left corner of the vehicle touches the right line, the steering wheel should be turned immediately, and then the left corner of the vehicle should follow the right line, keeping the left corner of the vehicle always on the right line to avoid crossing. When exiting the curve, the steering wheel must be controlled properly. Generally, turning one circle plus 45 degrees is sufficient. Notes for S-curve driving: When the vehicle approaches the entrance of the curve, adjust the vehicle to the center of the road. When entering the curve, stay as close as possible to the right side line, which facilitates the left turn. Control the speed of the vehicle and avoid going too fast. When the gap on the left side of the vehicle's hood touches the right yellow line, turn the steering wheel one circle to the left to successfully pass the first curve.