We should join the rest of the industrialized world and modernize our rail system.

The US High Speed Rail Association envisions it like this:

Our plan calls for a national system of HSR Express lines connecting cities and states into an integrated system. Our plan sets high standards for interoperable state-of-the-art dedicated track, advanced control systems, elegant multi-modal train stations, and top-of-the-line 220 mph trains connecting major cities together. Our plan calls for a support network of 110 mph trains connecting smaller cities and towns together with the high speed system.

The national high speed rail system forms the backbone of a complete sustainable transportation system for America. The other components of this system include connecting regional and commuter rail, light rail, streetcars, trams, electric buses, and bicycles.

United States rail plan