Part of the issue with the whole idea is it seems fine on paper and watching traffic flow, but test it in reality. There's ought to be so much confusion with it.
https://www.google.com/maps/@36.8748352,-76.2122365,894m/data=!3m1!1e3!5m1!1e1They put this CFI (continuous flow intersection) in here in Norfolk, VA, and there's been a lot of confusion with it, despite signage. Most people just aren't used to that type of intersection.
And to make matters worse, another intersection in Virginia Beach, VA under construction is creating a hybrid of a RCI (reduced conflict intersection), and CFI at a major intersections.
I can't wait to see the amount of confusion and wrecks that occur there when it's completed. These innovative designs may help traffic flow, but consider driver expectations as well. The VA Beach intersection goes too far IMO.