> other drivers also have no option to merge wrong or try anything weird If they're following the markings, yes. We have a 1.5-lane roundabout in my area[1] (t

> other drivers also have no option to merge wrong or try anything weird If they're following the markings, yes. We have a 1.5-lane roundabout in my area[1] (two lanes on the north side of the circle, one lane on the south side) fed on the southwest by a two-lane road; the right lane is supposed to be a bypass for vehicles turning right, and does not actually enter the roundabout. Some vehicles still make the attempt, ignoring road markings, adjacent vehicles legally entering the roundabout from the left lane, and even the impending concrete barrier. [1] https://www.google.com/maps/@42.0332849,-91.6029348,100m/data=!3m1!1e3 https://www.google.com/maps/@42.0332849,-91.6029348,100m/dat...