Earlier quoted context omitted.
> Why is Australian public transit so much better than American public transit? I would guess it's because Australia is, like, 99% uninhabited and uninhabitable or borderline uninhabitable[1], which probably means they can focus resources almost exclusively on the few densely populated areas. Additionally Australia's urban population seems to be significantly higher than America's (~89% vs ~80% according to 5 seconds…
so USA has poorer public transport than Europe because the latter has much more uniform population distribution; USA also has poorer public transport than Australia because the latter has much more skewed population distribution. american exceptionalism at its finest. :)
My state, about the same land area as France has a population density of 39/sq-km, right at the median value for the states. France has density of 122/sq-km. Population density is lower here, where people actually live, than in many locations in Europe or Australia. This may, in part, explain public transportation issues in the USA.