Prior to the 1980's (or so) it was rare to see a railroad car covered with graffiti (outside of New York City, anyway). Now, it's rare to see a railroad car without graffiti.
Depending on how your brain interprets reality, this can either be:
Art
-or-
More evidence that out-of-control feral humans are ruining a society unable to set even minimum standards for public behavior. Such as for: following traffic laws (speeders, red light runners, texting, car pool lane criminals, taking two parking spaces), loud noise (music, exhaust, incessantly barking dogs), and various other rules that entitled narcissistic "jerks" routinely ignore for the own benefit.
There is a much better word for "jerk".