The cost of passenger rail is high in America, because America doesn't build enough rail.

If you try building a single megaproject, nobody knows what they are doing, everything is inefficient, and mistakes will be made. But you learn by doing. If the individual projects are small enough that there are always multiple projects in various stages, you develop and maintain expertise. Then you can build things cost-effectively and finish the projects in time.

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WorkerBee28474 2 hours ago | parent [-]

> The cost of passenger rail is high in America, because America doesn't build enough rail.

The cost of passenger rail is high in America because America has 11% of the population (read: customer) density of Japan.

(For cities, NYC has 25% lower population density than Tokyo.)

	▲	wahern an hour ago \| parent [-]
		Dividing population by total land area is a horribly misleading way to understand density. There are alternatives, like population-weighted density, that give you a better picture: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3119965 Here's a blog post where somebody re-invented the concept and analyzed density in Europe: https://theconversation.com/think-your-country-is-crowded-th... The population-weighted density of the US is roughly similar to continental Europe.