(OLD) Underground Highway Intersection
New version with decorations and without tricolor stops:
http://steamcommunity.com/sharedfiles/filedetails/?id=708922051
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Underground highway X intersection at level -2 and -3, allowing metro at level -1.
– 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.
