Undergound Highway & Railway Intersection Set.

Highway:

Highway at Level -2 and -3 allowing metro at Level -1.

- New set [ V2 ] with decorations, one way road and without tricolor stop. (under construction, still missing a few variation)
- Optimized for saving surface space for building
- Have some weaving
- T intersection and jonction coming soon ...

- Old set [ (OLD) ]
(not really satisfying with how IA deal with road line affectation, and tricolor stop repartition anyway it's still pretty efficient)

Railway:

2 interesection, the smaller one may cause stuttering.

SIDE NOTE:

- Flattened terrain is highly recommended when using underground intersections, it hardly work well with hills.
- Rebuilding some segment could sometime be painfull (especially when for some reason it sometime modify the terrain and underground aspect of the said segment) , click wisely when connecting, removing some part.