There are huge metropolitan areas in the US that are very dense, and work places and shopping is very dense, so is mass transit. Plus a lot more routinely commu

There are huge metropolitan areas in the US that are very dense, and work places and shopping is very dense, so is mass transit. Plus a lot more routinely commute every day for work more than 50 miles one way. People also fly and drive a lot betwen cities. https://en.wikipedia.org/wiki/List_of_North_American_metropolitan_areas_by_population https://en.wikipedia.org/wiki/List_of_North_American_metropo...