What does the Audi A5's Pre Sense City technology do?

I just bought an Audi A5 and noticed there is a Pre Sense City feature. What exactly does this technology do and how does it work?

The Pre Sense City technology in the Audi A5 is a safety feature that uses sensors and cameras to monitor the road and help prevent collisions in urban areas. It can detect objects and pedestrians and will automatically apply the brakes if needed. It also provides a warning to the driver.

I have been using the Pre Sense City feature for a few months now and it has saved me from a potential crash in heavy traffic. It gives me peace of mind knowing that my car is looking out for potential dangers on the road.