Writing a research paper about the subway and don't know what to include in New York City Subway Posted March 16, 2009 In terms of history, you might want to discuss how the methods of building the subway varied from the els to the original stations to dual contracts to IND to the tunnel boring machine. I would also discuss the impact of the subway on the city itself, and how the subway not only influenced popular culture (a la "Take the A Train") but significantly expanded the city limits (before the els and the original IRT places such as the Upper West Side were relatively undeveloped). I would recommend reading Uptown/Downtown by Stan Fischler, and 722 Miles by Clifton Hood, which is on Google Books, at least for the most part (this book is great at explaining the impact the subways had on the idea of what residential areas should be in and outside of the city). For the car information, your best bet is probably nycsubway.org but I would also recommend New York Subways: An Illustrated History of New York City's Transit Cars by Gene Sansone. They have this book in Barnes and Noble in the NYC section, and it has detailed technical diagrams of all the subway cars to the present. Good luck! If you need any help or more suggestions, feel free to message me.