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Battery costs have declined by 99% in the last three decades, making electrified transport a reality
(ourworldindata.org)
This is a most excellent place for technology news and articles.
Not when compared to the maintenance and cost of installing the amount of multi lane interstate and highways we currently have in the US.
Electric rail isn't a solution for every commuter in the US, but it is the solution for most commuters, as 80% of Americans live in urban environments.
Also, the argument that America is too large to have rail isnt very logical when countries like Russia or China depend on it for the vast majority of their logistics.