Can’t think of a better community to ask.

  • Justin@lemmy.jlh.name
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    4 days ago

    Yeah researchers don’t always agree on things. Definitely a question up his alley though, since I think he’s done a video with a similar theme.

    Actually, I just watched the new RMtransit video on YouTube, and he shows that the RER A in Paris runs double Deckers in tunnels through the center. It’s more of a commuter train, but it’s very close to a subway, and the first I’ve seen of urban commuter trains like that with double decker rolling stock.