Espoire's Elevated Rail Interchange

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.

Dimensions: 92x100
Right-Hand Drive
Parallel Rails Space Between: 4m
- But easily adjusted to wider or narrower spacings; there's room on the shorter points of the star for a width-adjustment adapter without changing the footprint of the interchange itself.
No intersections.
180-degree Rotational Symmetry

I was going for "as compact as possible" (length/width; not optimizing diagonal size), and as a result the walkability and resource-efficiency are both terrible. I think you might be able to make a similar design using 50-75% as many Rail Supports, but I think it would make the footprint bigger.