Not surprised that it's dominated by BART planning images and information. It's amazing how much the system evolved over its planning process, and through today. I did find it amusing that some of the early car concepts had features that eventually cut which were again proposed and cut for the new Fleet of the Fututre cars, like the spaces for artwork.
The most interesting images I saw, though were on the first page: the cross sections of the Bay Bridge and tunnel. You can still see remnants of that line on the lower deck of the tunnel. There are regularly spaces "dead man holes" or pockets of safe haven for workers along the south (right) wall.
