How Does Audi's Traffic Jam Assist Feature Work?

I've heard about Audi's Traffic Jam Assist feature, but I'm not sure how it actually works. Can someone explain it to me and how it differs from other self-driving technology?

Audi's Traffic Jam Assist function utilizes sensors and cameras to detect and track surrounding vehicles, along with lane markings. It can take over steering, acceleration, and braking at low speeds, allowing for a more relaxed driving experience in congested traffic.

Unlike other self-driving technology, Traffic Jam Assist is only meant to be used in heavy, slow-moving traffic. It is not meant for use on highways or open roads. Also, the driver must still be attentive and ready to take control of the vehicle if needed.