Transit Maps

Here’s a great late-1970s diagram that I haven’t seen before of Philadelphia’s subway-surface trolley lines. From the looks of things, this might well have been a strip map within the trolley cars themselves. The subway-surface lines are given full prominence here, with the rest of Philly’s rapid transit rail system represented by very thin route lines mainly confined to the right third of the map. The five trolley routes are treated very diagrammatically, each following […]