At this point not too different algorithms from what we use for self driving could detect situations where noise would be helpful to air safety. For example a

At this point not too different algorithms from what we use for self driving could detect situations where noise would be helpful to air safety. For example a crowded downtown road in rush hour. People will obviously know there are cars in the street. Why add to urban noise pollution. Or even if there are cars in front of you and behind you, you probably don’t need sounds.