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This three-sided pole on an airport tram
(sh.itjust.works)
I had never seen one of these before today. They're great. Way better than reaching for a single pole in a crowded car and wrapping your hand around some stranger's fingers. And If you have the whole thing to yourself you can hook your arm through it.
Yeah, they’re pretty common on newer train cars.
Also, obligatory San Francisco BART picture.
In the métro in Lyon the bar are similar too:
San Diego trolley has them as well
For a moment, I thought, this was one of those airplanes with which they do zero-gravity flights...