I posted this idea on another thread back in April. I feel it could be a very different solution to this Superliner/ADA problem:
Okay, I'm just throwing this out there:
Retrofit or build new Superliner diners and sightseer lounge cars as follows:
1 - Replace lower lounge with two HP bedrooms. There already is an accessible toilet right there or completely remove lounge and toilet and replace with two fully equipped HP bedrooms.
2 - Add lift to upper level.
3 - Can all of the swivel chairs be turned to allow for passage of a wheelchair? If not install narrower tables or seats at one end of the car to provide accessibility to the end door that faces the dinner.
4 - Add wheelchair space somewhere in the lounge.
1- Make both end tables at one end accessible utilizing flip down seats so that they can be used by everyone if possible.
Now a wheelchair passenger has full access to all of the passenger related amenities. Leave the coaches and sleepers alone except now you can add one or two (depending on the number of sleepers) sellable family rooms to every consist. There really is no need to have accessibility through the entire train.
Amtrak may have to ask for a waiver but this seems to provide equal and enhanced access to the most important features of the train. It doesn't cause a loss of room revenue but in fact adds to the bottom line. The Sightseer now actually generates room revenue and the H bedroom in the sleepers can be sold as a second family room.
BTW - On a recent Auto Train trip, I never saw anyone using that lower lounge.