transitmaps: Historical Maps: Man-Made Philadelphia, 1972 One last view of Philadelphia transit via these amazing diagrams from a 1972 book from the MIT Press, “Man-Made Philadelphia”, now sadly out of print. As well as the train network, there’s

transitmaps: Historical Maps: Man-Made Philadelphia, 1972 One last view of Philadelphia transit via these amazing diagrams from a 1972 book from the MIT Press, “Man-Made Philadelphia”, now sadly out of print. As well as the train network, there’s

transitmaps: Historical Maps: Man-Made Philadelphia, 1972 One last view of Philadelphia