How does Audi pre sense city assist in the A8?

I've heard about Audi pre sense city, but I'm not sure what it does exactly. Can someone explain how it works and what situations it is useful for in the Audi A8?

Audi pre sense city is a safety feature that uses radar to detect potential collisions with other vehicles, pedestrians, or cyclists. If a collision is detected, it can automatically apply the brakes or provide a warning to the driver. It is especially useful in city driving conditions where there is a lot of traffic and pedestrian activity.

I love this feature in my Audi A8! It has saved me from a few close calls in heavy traffic. It's important to note that it does not replace attentive driving, but it does offer an extra layer of safety and peace of mind.