In 1941, Encyclopedia Britannica put out a little educational film called "The Arteries of New York City". As you can guess, it describes how transportation to, from and inside of Manhattan, works.
The narration is ever so literal, describing that, "the main job of transportation in the city, is to carry people between three points: where they live, where they work and where they play."
The narrator also explains that ,"year after year, these arteries of New York thrive steadily, but it is no accident that they operate so smoothly or that new ones come in to being just when and where they are needed. Providing transportation for New York's millions is the job of many kinds of experts. This group of research workers analyzes trends to determine when and where new arteries are needed." This group of research workers needs to analyze the L train a little bit more.
And you gotta love the comments posted on YouTube about the video: "OMG that was so cool, even if its old.. i learned a lot about new york...i didnt even know there where tunnel under rivers to go to Manhattan!!!"
