I always feel that most railways waste too much material but offer no real benefits, so I designed my own railway.

Most three-way intersections/switches only have one straight track and two 90-degree curves, which are too steep for many trains/freight cars. This version only has 60-degree curves, which are suitable for all our trains/freight cars.

Please also check out my other track designs: https://makerworld.com/en/collections/3318020-skeleton-tracks-brio-ikea

I suggest printing on a PEI-coated print bed. Otherwise, you may need to add a base layer to prevent warping.