"One thing AI might be better at: believing Road Closed signs. We have a road closure on the corner next to us. Before they get there drivers have to pass two Road Closed Ahead signs."
I had one of those the other day, in an unfamiliar area. I diligently followed the diversion only to find the road was also closed at the other end. So I ignored the road closed signs and drove up to the road closure to see if I could get to my destination. No dice, so turned around, followed the diversion back the other, passed by the road closed signs at that end and got to my destination about 20 minutes later than if I'd ignored the first set of road closed signs. No, there were no signs saying exactly *where* the road was closed. Very unhelpful.