What is the function of the Active Lane Assist in the Audi A4?

I have heard that the Audi A4 has an Active Lane Assist feature, but I am not sure what it does. Can you please explain its purpose and how it works?

The Active Lane Assist function in the Audi A4 uses a front camera to monitor lane markings and can help keep the vehicle in its lane if it detects unintentional drifting. In addition, it can also give warnings if the vehicle begins to drift without signaling.

I have found the Active Lane Assist feature in my Audi A4 to be particularly useful for long drives or when I am feeling fatigued. It gives me an extra level of confidence and safety on the road.

The Active Lane Assist feature in the Audi A4 uses a precise steering intervention system to gently correct the vehicle's position if it starts to veer out of its lane. It can also detect if the vehicle is approaching a lane change without signaling and warn the driver.