junctions yes. A spline point can have any number of segments connected to it (ctrl + click to connect points) so you can form junctions easily if you're applying spline meshes for the road surface then it gets a bit weird cos they overlap this is all one landscapespline actor kerbs - you're screwed . I'd recommend…
streaming and virtual textures, while very nice are not relevant to this issue The spline system seems to work fine on my large nanite landscape (10x15km) and while it's a little clunky I can't say I'm having any major problems with it. I'm not building anything as dense as New York though. Your biggest problem with…