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Guangzhou Airport/Guangyuan Road Interchange

Background
First off, this set was inspired by an interchange I found in Guangzhou, China. It's so complex that Google Maps didn't know how to render the image into actual polygonal roads, but OSM renders it just fine:
https://www.openstreetmap.org/#map=18/23.16227/113.25749
This interchange looks spectacular both in-game and in real life.

Limitations
Due to the nature of how this interchange is designed, you can only use two-wide roads as the elevated artery (no upgrading to more than a two-unit-wide road). This means that this interchange is not designed for heavy usage and is more of an urban interchange between a highway and an artery with heavy usage or a minor freeway, which was its original intent.
Also note that the elevated road is misaligned from start to finish by ~4 units due to the nature of how this was designed.

Requirements


TL;DR - Interchange I found and adapted into Skylines, the elevated arterial road can only be a two-unit-wide-road, frankly.

Enjoy~