"OK, let me change that from "aren't being used" to "aren't being used and available for redeployment elsewhere". For all we know, Amtrak may only feel comfortable utilizing 39 Viewliners on any given day.
If reports are true that Eastern sleeping cars are often sold out, wouldn't it make more sense to deploy available sleepers (if there are any) on existing routes instead of on a new route where there's assured demand for them anyway?"
I will be the first to admit, that Amtrak's Viewliner utilization is the most puzzling to me. Eastern long distance sleeping cars are often sold out. Try booking a roomette or bedroom on the Cardinal, Crescent, or Lake Shore Limited this coming weekend (eastbound/southbound to Chicago/Atlanta and then returning back to NYC) - all sold out in sleeper class (except for the eastbound Lake Shore Limited, but since it is the "cleanup train" out of Chicago" the odds are that it will get booked up). And that is with the Lake Shore operating with three Viewliners, Crescent with two Viewliners, and Cardinal with one Viewliner.
The NEC had regular Viewliner service right up until around 2005 when the freeze-up of Viewliners occurred and it had to "give up" its Viewliner to preserve the heavy Florida market that is strong in the winter. So sleeping cars on the NEC would actually be re-deployed or restored on an existing route that once had sleeping cars. It would be the shortest route of a Viewliner but Amtrak would likely charge the equivalent of what a Viewliner might catch on the Lake Shore Limited, especially using the amounts quoted above. And at least the Viewliners would be close to Sunnyside Yard where they could pinch hit if needed. It's almost if once the Viewliner fleet got back up and running after the freeze up and the rebuilds were done on the two Viewliners involved in the Hinesville crash, they merely forgot to put sleeping cars back on the Northeast Corridor.
The Viewliners are around, it's just a matter of "where." Amtrak's got all 50 - none are in any wreck-repair status etc. And with reduced revenue capacity in the Viewliners now since the Heritage Crew Dorms are gone, (crew has to share space in the Viewliners with revenue passengers) one would think Amtrak would want to really manage this long distance sleeper car revenue - the highest revenue fare bucket on a long distance train.
Again, some could argue that instead of putting the two Viewliners on the NEC for sleeping car service, Amtrak could find one more Viewlier for a total of three to build a single level train set that would operate on the rear of the Capitol Limited across PA (to/from Pittsburgh) - ala the Three Rivers or Broadway Limited.
Out of 50 Viewiners only 39 Viewliners, or 75% of the Viewliner fleet, will be in operation this weekend on CURRENT routes where sleeping car service on the above trains are sold out. Since the Silver Palm, Three Rivers, and Federal lost its Viewliners (or were outright cancelled or truncated), I have been baffled on how Amtrak utilizes its Viewliner fleet. I've seen no statement from Amtrak as to why 25% of the fleet remains out of service. Kummant's on record saying that if they could add another sleeper to any long distance train this summer, they would do it. But this statement appears false when it plays out for both Superliners and Viewliner sleepers.
Course the Inspector General's office now has a business fleet of at least two former Heritage crew dorms, as reported on this forum or another and pictures of refurbishment. But wait, Amtrak took these Heritage cars out of service because they no longer wanted to maintain the fleet. Baffling, when Inspector General employees could easily book business travel in a Crew Car on any train if a Superliner Trans Dorm sleeper and Heritage Crew Dorm were still in operation.