Description
A base-game version of the train set found here: https://factorioprints.com/view/-OwrsP4gxt7wafTDhRoq
Any configuration of rails supports up to 6-car trains. RHD. Only place rails if there are no conflicts, ie dont force-place a rail-based blueprint.
P.S. Search "blueprint" in your control settings for useful hotkeys.
I show an overview here: https://youtu.be/zOkrqNfHQ7Q