What is the Audi A5's Lane Departure Warning System and how does it work?

I saw a feature called Lane Departure Warning System in the Audi A5's specs, but I don't know what it does. Can someone explain it to me?

The Lane Departure Warning System is a safety feature that alerts you when you unintentionally change lanes while driving. It uses cameras and sensors to detect lane markings and sends a warning signal if you start to drift out of your lane. It's designed to prevent accidents and keep you safe on the road.

Basically, the Lane Departure Warning System helps you stay in your lane. It gives you a visual warning on the dashboard and sometimes even a vibration in the steering wheel if it detects you drifting out of your lane. Trust me, it's a great feature to have, especially for longer highway drives.