My modified version of the Encircled Knot i found here: https://forums.factorio.com/viewtopic.php?f=194&t=46855 . Modified it to not allow trains to loop around. This is designed to fit into the rail network i use for a bob+angels city block base.
by Unknown Author · updated 10/14/2017 · 30

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
My modified version of the Encircled Knot i found here: https://forums.factorio.com/viewtopic.php?f=194&t=46855 . Modified it to not allow trains to loop around. This is designed to fit into the rail network i use for a bob+angels city block base.