This was sort of figured out during the massive railroad booms in the US throughout the 1800s. You can let the market have parts of it but you need guardrails s

This was sort of figured out during the massive railroad booms in the US throughout the 1800s. You can let the market have parts of it but you need guardrails so you don't have some asshole that owns a bridge holding everything up for a city: https://en.wikipedia.org/wiki/Livingston_Avenue_Bridge#History https://en.wikipedia.org/wiki/Livingston_Avenue_Bridge#Histo...