Never saw all the heating/cooling escape when all the doors were open.
Can you normally see the wind or are you trying to wind me up?
Do you have knowledge that the reason they do it that way in Europe is because of that? Or are you making it up?
Do you really think I'm
making it up that needlessly opening extra doors quickly releases hot/cool air unnecessarily? Or do you think I'm
making it up that energy efficiency is a core concern of nearly every industrialized nation besides ours? In my experience nations that have chosen to fund, design, and implement modern passenger rail systems are generally some of the most energy efficient countries in the world. The reason I mentioned the issue with heating and cooling is because that's precisely what I was told when I asked. It never occurred to me that I should pickup a written, signed, and notarized copy to hand over to some dismissive Amtrak insider.
You seem to be exclusively focused on some kind of user interface based efficiency measurement that counts how many fingers are involved in turning/pressing how many buttons or knobs. Presumably you believe that having to press a button to open a door slows everything down but in my experience that has not been the case. The only time it slowed things down was when someone who had never seen it before had to be shown what to do. After that it was a non-issue. Upon arrival at a major terminus or during irregular operations the doors can all be opened at once as needed. It's a brilliant system in my view but I suppose even obvious benefits are still lost on some.
Some crews did try it out at the start of Acela service but there was no reason to not open all the doors so it didn't catch on.
You mean they tried it during the period when North Easterners were ignoring their own tickets and bullying each other over who sits where? Sounds like Amtrak has a lot of good ideas but gives up too easily when it comes time to actually implement them.