By perfect I mean with absolutely no gaps (to fill with GapFill) at all - Stravant has a plugin for road creation that solves this, however it has some other extra features that can not be disabled which make it incompatible for what I’m trying to achieve.
Mostly I’m trying to make banked turns like these without any gaps:
I already have Archimedes, Blender somewhat works although the hitboxes for the road always come out buggy no matter what collision type I use in studio