One last view of Philadelphia transit via these amazing diagrams from a 1972 book by Richard Saul Wurman from the MIT Press, “Man-Made Philadelphia”, now sadly out of print. As well as the train network, there’s also buses, highways and the growth of the city. Definitely loving the early 70s mimimalism design vibe to these. Looks like they were all produced specially for the book.

Source: rjwhite/Flickr