Intercity travel is latent, but here’s a promising development or two via buses

This map of Megabus hub and spoke operations demonstrates the correct analysis of America 2050′s US megaregions.

First, MegaBus:

America 2050′s US megaregions and areas of population focus:

Their estimates for how to set up a passenger rail network:

I find it fairly uncanny how closely MegaBus is emulating that (and MegaBus has been tinkering with the connections on that map a lot, making it look closer and closer to the 2050 network connection map).

Sadly the MegaBus system outside the NorthEast...