Tomorrow's map will be vastly different from today's. Great patches over much of it will indicate the super-metropolis cities which are already evolving out of our once-separated urban centers.
The "regional cities" of tomorrow will be nearly continuous complexes of homes, business centers, factories, shops and service places. Some will be strip or rim cities; some will be star-shaped or finger-shaped; others will be in concentric arcs or parallels; still others will be "satellite towns" around a nucleus core. They will be saved from traffic self-suffocation by high-speed transportation - perhaps monorails that provide luxurious nonstop service between the inner centers of the supercities, as well as links between the super-metropolises themselves.