Nice episode of 99% Invisible on how New York City got rid of the graffiti on all of their subway trains.
For decades, authorities treated subway graffiti like it was a sanitation issue. Gunn believed that graffiti was a symptom of larger systemic problems. After all, trains were derailing nearly every two weeks. In 1981 there were 1,800 subway car fires — that’s nearly five a day, every day of the year!
When Gunn launched his “Clean Trains” program, it was not only about cleaning up the trains aesthetically, but making them function well, too. Clean trains, Gunn believed, would be a symbol of a rehabilitated transit system.
Remember, the train cars used to look like this: