So what does this all prove? Certainly the infographic exemplifies the polarizing nature of the city, but it also proves the equalizing nature of the subway. In most US cities, the class divide is clear; take public transportation in Los Angeles or Miami and you are labeled poor, illegal or a hipster. In New York? Try telling someone you drive a car and prepare to be judged.
While the data does not exactly prove this extended observation, it is interesting to think about. The subway line with the greatest stretch is the 2 train, with its lowest point hitting $13,750 at E. 180th St. in the Bronx, and its highest peaking at $205,192 at both Park Place and Chambers St. in lower Manhattan. These gaps may be incredible, but they actually appear in relatively close quarters. Just look at the 4/5 lines that go from $104,514 at 86th St. to $15,625 at 125th St. in just one stop, and in the same borough.
Maybe the haves can avoid passing through the areas of the have nots, and maybe if the subways stretched out further into the outer boroughs, the overall average would dip dramatically, but that's income, and we are here to talk about transportation. Riders at the top and the bottom ride together; everyone avoids eye contact with their fellow straphangers and no one wants to sit within ten feet of the sleeping homeless man, no matter what dot you live at. That's the thing about the NYC subway - whether you like it or not - once you swipe, you're just like everybody else.