Wow, I half-expected this to be a lot of "look! expansion!", but really there's a lot of consolidation and complete overhaul if not downsizing. Detroit and Buffalo are pretty depressing, but not unexpected given their population trends. It's neat how Montreal moved everything underground, what a massive undertaking. While I'm not super surprised at the general trend of abandonment of public transit, it's sad! Look at all our European friends with their fuctional and heavily-used public transit networks!
Also, doesn't San Francisco rely way more heavily on BART?? I feel like the street cars aren't the "modern transit network" of the city, but I get that it's cool for comparison.
I'd love to see a comparison for Boston: "Ah yes let's just keep adding stops and not bother with any standardization or anything". Cue daily delays and failures.