Hi there, is there any particular reason why you've split Main North Road near https://www.openstreetmap.org/way/1230460423, there's only painted lanes there, which shouldn't result in the road being mapped as dual carriageway (https://wiki.openstreetmap.org/wiki/Dual_carriageway for reference).

Both Bing and ESRI aerial imagery don't show any physical separation, I've driven through here nearly weekly and never seen physical separation either, plus there's no need for that for routing to occur (as per your changeset comment).

Best way to represent the turning lane there would just be with turn:lanes tags. Don't need additional ways or the restriction relation, and it reflects ground truth then.