Quico Toro at Persuasion:
Begin with the station layout. In New York, you wait for your train not on the platform, but in a ticketed waiting room, where you watch for gate announcements that explicitly mimic what you get at an airport.
Passengers then schlep to line up at the one escalator leading down to the tracks. This chokepoint is entirely of Amtrak’s choosing; nothing about the technology itself necessitates it. Airplanes have a single point of entry; lining up to board is inevitable. Trains obviate the need for this, but on the Acela you have to line up anyway. Before you’ve even boarded the train, Amtrak has already nullified one of its best advantages.
Another way trains are different from airplanes is that they run on tracks, so they don’t experience air turbulence. Without turbulence, luggage bins can be uncovered (as they are on the Shinkansen), which makes them much more visible and much more useful.
More here.
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