okay. here's a few things that trip me up: basically every exit lol, but specifically north-east. this corner is super weird. the road north (1 way) is not really connected to the roundabout, there is like a seperate road/lane that runs "past" the roundabout from east to west. but the roundabout has an exit to that road. and that road splits up into a lane onto the roundabout and one that runs past it.
i'm also not 100% on what to do about the slip lanes that still kinda brush the roundabout. i'm trying with curbless roads, but they're super finnicky
here's one more image with the streetview lanes
Jeez, that bottom bit must be chaotic to drive through
It works in-game. I can't speak to the real life