It's how I learned to use the reference section of the library, how I learned to write "please send me a copy of your subway map" in a few languages when you had to send mail to transit agencies, and how I sublimated my undiagnosed OCD until puberty. When I wasn't staring at subway maps, I was drawing them with color pencils. To this day I love mass transit networks, streetcars and subways especially. I've been living in Los Angeles for two years, where the network is growing and the results are rather nice. Next week I get to visit New York for the first time in a few years. I plan to ride the Hudson-Bergen Light Rail as well as some ferries, along with the oldest parts of the Brooklyn IRT down Nostrand (2/5) as well as the entire G (slow as molasses).