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NTM_89's avatar

PSD's aren’t going to happen, There will be major pushback from the unions with not having direct access to the tracks for signal upgrades/track maintenance. Then there's freight rail which shares trackage with the proposed IBX and there is no way that they'll go with it.

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Khyber Sen's avatar

I'm not sure if extrapolating from PSD retrofit costs will be that accurate, even though you removed the many parts that won't apply to the IBX. Have you compared to the JFK Airtrain costs (in NYC, but older), or REM (in North America and very recent)? Or any other recent airport people mover with PSDs in the US?

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