Ok, so why are they not turning them on the loop that is clearly designed to accommodate a quick turn in sunnyside yard? Do they turn the regionals on that loop?
There are only two turns a day that are routinely turned on the loop in NY. 2100 for 2117 and 2104 for 2121.
DC does not have a loop, but rather a wye, so they can not make quick loops. Keeping in mind that the equipment turns need to be done in less than an hour and a half of the train arrives on time, if you go and waste 20-30 minutes wyeing the train, now you're left with close to an hour to clean the train, strip the first class stock, and load it with fresh stock. And then the attendants will often be late getting the meals in the oven, and whatever ever other prep the need to do to start service. So now customer satisfaction in first class will suffer.
No thanks. I will deal with the consist's orientation being uncertain. Again, depending on where the equipment originated, as a frequent rider you can make an educated guess as to where the cars will be located. Just install the signs that show car locations on the platform and leave it at that.
There are also reasons that we may operate a consist from the opposite direction of where it would typically be from it's origin, such as something makes one cab car inoperable of leading the train. If there was only one cab, the equipment would then have to be shopped and who knows where the spare equipment would come from? In Boston there isn't any, so we'd have to keep stealing from a later train, until we start forcing the in-station equipment turns to be ready to go out within 30 minutes minutes of its arrival as opposed to 1:30 after it's arrival. This will occasionally happen in DC either if an earlier set goes mechanical, or if it's involved in a service disruption.
There are reasons Amtrak does things the way it does, and there are often consequences to many of the suggestions on these forums to possible changes.