Nick, on the money...just imagine how much better on time performance, and routes, there would be if we double tracked important rail routes like we did major highways?
I don't think it would have any impact at all, really. Other than huge maintenance requirements on a lot of slack capacity.
On the contrary, it would help a great deal. Caveat: which routes are important? The New York - Chicago routes could certainly use more tracks, and double-tracking is currently funded near Schenectady. Between Portland and Seattle, and between San Diego and Los Angeles, double tracking, and even sections of triple-tracking, are being funded. It's needed for good passenger service and it will be used.
The transcontinental routes are not the ones which need extra tracks.
The problem is that NYP-CHI is not one of those small corridors. This route is much longer and dosen't have frequent service. With another one or two daily trains on the route, then double-tracking would be feasible.
Swadian, I wouldn't use state highways. I'd drive the interstate the entire way to take advantage of higher speed limits. State highways are only 55 mph.
Also, I did figure in gas stops and such, and I drive 5-10 mph over the speed limit. Always. The speed limit in Michigan is 70, and I usually hover around 77-78 like most of the traffic.
Better example:
Chicago to Orlando for spring break/Disney. I did all of the calculations for gas and such, and we're switching drivers at the gas stops. It's 19 hours.
If we take the train, it's 38 hours. No way would we take the train. The route is indirect, and it takes twice as long.
But US Routes are not state highways! And you can actually go pretty fast on the ones in the desert. It's all straight for miles, so just make sure not to veer off the road. If you insist on speeding, then there's also less police out there. But speeding is cheating, you have to follow the speed limit to be fair with Amtrak who also follows the speed limit.
And of course Chicago-Orlando has been terrible on Amtrak ever since the Floridian got cut. Me personally would take a Greyhound bus. 26-28 hours is not bad considering the bus has to follow speed limits, make stops, refuel and clean, transfer buses, and account for timetable padding. If taking the itinerary with only 1 transfer, the layover at Atlanta alone takes up 4.5 hours, plus two cleaning stops adding up to 2 hours, so it's only 21.5 in the end. Not bad for a bus.
I would like to state no intention to make this thread off-topic into buses again. I am only saying this to show that speeding is cheating, and that Amtrak is not that slow of a transport option, but it does cost a lot for a ticket.