[vidarh]

> A million or two people within say 10-15 miles is the sort of place a large portion of the country lives

That's more dense than Oslo, which has several major rail arteries and a light-rail/subway system, most of which was initially built at a point where Norway was still a relatively poor country. It's vastly more than e.g. Bergen, which has 280k people, a tram

It boils down to whether or not you're willing to actually plan for it and spend money on it.