What does the Audi A4's lane departure warning system do?

I've been hearing a lot about lane departure warning systems in cars recently. Can someone explain what it does in the Audi A4?

The lane departure warning system in the Audi A4 uses sensors to monitor the vehicle's position on the road and alerts the driver if the vehicle starts to drift out of its lane without signaling.

This feature is designed to prevent accidents caused by driver distraction or drowsiness, providing an added layer of safety for you and others on the road.

The system also has the ability to make small corrections to the steering to help keep the vehicle in its lane, but it's still important for the driver to pay attention and stay focused while driving.