How does the Audi A6's Active Lane Assist work?

I've heard that the Audi A6 has a feature called Active Lane Assist. Can someone explain how this feature works and how it benefits the driver?

The Audi A6's Active Lane Assist uses a front-facing camera to monitor lane markings and can detect when the vehicle is drifting out of its lane without the use of turn signals. If the vehicle drifts, the system will gently steer the car back into the proper lane. This can improve safety and reduce driver fatigue.

The Active Lane Assist feature works by using a forward-facing camera to detect lane markings on the road. If the vehicle starts to drift out of its lane, the system will gently steer the car back into the proper lane. It's a useful feature for long drives or in heavy traffic.