I've driven from Denver to the Springs, there is rail, but I've always seen giant coal trains on it. ...
From previous discussions on this board, that's my understanding of the problem: giant coal trains from the giant open pit mines in Wyoming heading down to Texas (mostly) giant power plants.
Of course, as discussed hereabouts, coal is in a giant slump for various reasons. With many fewer coal trains, it becomes much easier to schedule a couple of passenger trains.
I'm trying to keep an open mind here. The
Southwest Chief badly needs more tent poles between Illinois and California. Kansas City and Albuquerque aren't enuff. A detour to Pueblo and the larger city of Colorado Springs looks appealing as a way to gain passengers to/from these "intermediate points". But as we see in this thread, if the train gets as far as Colorado Springs, why not go a few more miles to a really big city. Not sure Denver would be easy to serve from the south. They rebuilt Union Station into a multi-modal station (plenty of buses) and shopping mall, and messed up the tracks toward Colorado Springs. But solve that and now we're talking a train Pueblo-Colorado Springs-Denver, and, uh, where do we go from there?
Go back to the current route of the
Southwest Chief? For riders from intermediate point to intermediate point -- say, Dodge City to Santa Fe, or Kansas City to Albuquerque -- adding Denver, even Colorado Springs, is a helluva detour. Tourists might not mind at all tho: CHI/Midwest to Flagstaff (Grand Canyon) with a detour providing a view of snow-capped 14,000 ft peaks of the Front Range, sure, why not. Lots of Grand Canyon-bound leisure travelers would want to jump off the train at Colorado Springs and spend a day to ride to the top of Pike's Peak.
Luckily, we don't need all the answers now. Moving incrementally -- first detour to Pueblo, then later extend to Colorado Springs -- gives plenty time to think it all thru.