Sure, but most people wouldn't be able to on their commute as the US doesn't have enough money to build tracks in cities these days as "fair value" for eminent

Sure, but most people wouldn't be able to on their commute as the US doesn't have enough money to build tracks in cities these days as "fair value" for eminent domain would be simply too much, at least in the USA. Taxpayers would never want to pay for it, especially since public transportation always has to be subsidized.