People who have Blind Spot Recognition (or Side Assist, they are different names for the same feature) in their VAG cars also have this "Rear Traffic Alert" thing. It is supposed to assist when reversing onto a road out of a parking space or situations like that. It may be helpful with cross-traffic but it also beeps crazily at the traffic coming from the rear (and possibly brakes hard) while you are making a manoeuvre on the side of a road, without creating a hazardous situation for anyone or for yourself. I had retrofitted Side Assist in my previous car, an '18 Leon FR and I didn't like that RTA thing but I thought "we might have missed some settings, this shouldn't work like this". Now it is the same on my new Ateca with the feature installed in the factory. I just gave up and turned it off.