This is a rudimentary history of the system, though it does offer some room for analysis, particularly the paragraph that begins “Since their opening, New York’s subways have functioned as a sort of bellwether for the city’s overall condition.” In any event, if you happen to work as a teacher in New York City, and serve a special needs population, I can just about guarantee you that at some point you will encounter a student, if you haven’t already, whose all-consuming, even obsessive, interest in the subway system will make these documents stand as high-interest material. Ergo, I have tagged them as such.
If you find typos in these documents, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.