Well I'm glad you got it resolved; not really sure what I did that didn't come through on the asset, tho 🤷🏿‍♀️

The network anarchy mod resolved this issue :)

Not sure if anyone is still here looking at this :D But this places half of the roads underground for me (highway roads underneath and the leafs as tunnels). Doesn't look like in the pictures. Do I need to prepare the terrain or something?

They do the jog because of how Cities Skylines does intersections, that's why I said get node controller renewal (so you can straighten it like I have). That shouldn't affect the function though, when it's set up correctly I've never had it backup at all (I also have crossing removed and a pedestrian path off to the side on mine), if everything's set up correctly and it still appears to be backing up, perhaps there's a bottleneck elsewhere causing it (with how quickly it lets cars through it'll amplify any other issues).

Be sure to have a look at your alternate methods of transportation as well (including walking), that can make a big difference on traffic volumes in and of itself.

I love the look and size of this, but the routing for straight-through traffic is wonky. They won't just continue straight, for some reason. They take the little sideways jog to the right and then turn left to rejoin the main road. It has clogged up traffic on both sides of the intersection for me, unfortunately! Quite odd.

Added to the description; thx for letting me know

I thought that was just part of mass transit, UUUPS!

You need this 3-Lane (1+2) Two-Way Highway otherwise it won´t load