Earlier quoted context omitted.
Same here. An Amtrak train would just stop at the next convenient road crossing, if there were really something preventing them from stopping at the scheduled station. Most Amtrak stations don't even have staff, or any way to prevent people from coming and going, so this would most likely involve construction on the station platform itself. That’s fairly rare but the last time I took the Zephyr headed east there was…
I don't understand ome detail of this story: Amtrak platforms are about 110cm high. That's more than waist high for most people. So how do you let people get on and off at a grade intersection instead of at a platform?
Every car has a metal step that will be placed in front of the door by the attendant.
Edit: Oh, except for a few lines on the East Coast where the trains are only single–level. Those are 48” above the top of track.