frequentflyer wrote: ↑Sat Jan 25, 2020 11:42 amSo hopefully in a decade or so, when the new Hudson and Baltimore tunnels are built then Amtrak could upgrade the Acella 2s to duplex if traffic warranted it.
The North River Tunnels are going to be more or less the current size. For better or for worse the entire NEC infrastructure between Newark and Sunnyside Yard is sized for 14’ 6” cars, and Amtrak and the other stakeholders have no plans to change that. That doesn’t exclude duplex trains, as the
TGV Duplex is itself only 4.32 m (14’ 2”) tall.
The Baltimore & Potomac Tunnels will be larger, I’m not sure how tall but Norfolk Southern has expressed interest in running stack trains under NEC wire to the Port of Baltimore.