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As Reece knows, I have been writing about defects MTA's proposal to use Light Rail vehicles for the proposed Interborough Express (IBX) between Brooklyn & Queens in the New York City at bqrail.substack.com. I get the feeling some system managements simply feel the need to have a light rail line, even to serve an area with a population of 900,000 as the IBX would do.

I suggest Reece post videos on what is a light rail, as distinguished from a "heavy rail" metro; and explaining the differences between the four categories of systems in China.

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I've definitely covered that in previous videos! I think the preference for light rail is probably driven by it's perceived ease rather than an actual preference

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I thought about this when some Light Rail or Metro systems go on Mainline Train corridors or vice versa. Would’ve it been better in your opinion if the REM ran on like 25kv or had the TGV have dual voltage changes share portion of Deux-Montages so that the if the Corridor HSR plan ever got enacted, their trains can use it too going to Gare Centrale?

Would’ve fixed an awkward alignment for HFR or HSR plans without having to have a station in Laval or at find an Exo Station with a metro connection.

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