the SFO people mover has the most adorkable third rail there is — it’s a *three phase* third rail!pic.twitter.com/q4JxJHHo36
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so they can use bog-standard industrial motors and motor controllers and not specialised railway stuff
most airport people movers arent real trains they have rubber tyres that run on concrete pathways
they’re basically oversized golf carts in a fixed guideway
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