Attempting to run typical 160 km/h, low acceleration, two-sets-of-doors UK commuter MUs in the core of the London Underground *would* cause unacceptable capacity loss! (Even if you do it on the subsurface lines where they'd fit.)
Right--and that's what I'm trying to get at wrt Boston: "if we were building the T now, we'd probably build it like Tokyo Metro, so let's take steps to make the T more like Tokyo Metro"
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But Boston already has the T and it's not like Tokyo Metro. (It also felt quite run down when I was on it.)
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Not sure how this contradicts anything I said in prev tweet
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The T is obviously different from Tokyo Metro or it would be nonsensical to talk about making it more like Tokyo Metro
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"If we were building the Tube now we'd probably build it like Crossrail" means there is a convergence in form between urban and suburban rail, but that this wasn't known at the time the former was built. Now that we DO know, we build the latter, & retrofit the former accordingly
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I suspect it's too difficult to retrofit the Tube, and particularly the Paris Métro. Or the T for that matter.
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Overnight? Of course. Over a long enough time span? Nonsense!
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The only question is how long that time span would be. Gradual changes and incremental improvements + time = radical changes and dramatic improvements
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I trust, of course, that you wouldn't advocate making NO effort to improve the Tube/T/etc?
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