Of course it needs any curves to have similar adaptations. Just because by realistic state of this mod better have more "free" railways directions.

The track API will allow us to use https://github.com/DonBruce64/OpenFlexiTrack when it is released in a few months.

I will even say about calculated curve shape, but you choosed other paradigm. And it even have own pros. Like placing rails without calculation positions of markers and setting it up...