JoeG wrote: ↑Tue Dec 10, 2019 12:21 amI hadn't known that road damage varies with the 4th power of weight on tires. I guess that explains why truck lanes are so broken up.
Yeah, trucks do the majority of the damage. What I don't quite understand is Michigan trucks that weight 82 tons versus the standard 40, but Michigan claims they are easier on the road because there are fewer, larger trucks, and they have lower axle loadings (i.e. an 82 ton truck with 11 axles versus a 40 ton with 5 axles). I just wonder how that impacts sections of the roads as they go over them.
There was a column in this month's Trains showing how much UPs train volume has fallen in the last couple of years. The reasons seem to be a combination of lost coal traffic, the fad of PSR, which means rejecting low-margin but profitable traffic to improve operating ratios, and PSR's mantra of running fewer, longer trains.
It seems that railroads are able to raise rates for commodities that have to move by rail, but otherwise are losing business to trucks.
I'd look at the numbers minus coal. Coal is just bad in every way for everyone. Global warming, pollution, health affects, and it badly beats up railroads with low profitability be grinding out massive tonnages. What is really concerning is losing business to trucks, because that has a negative affect on our country, our roads, and our economy.
It certainly seems that railroads have lost a lot of traffic to trucks, and for some reason they hardly seem to care.
The problem is that we've got a bunch of misaligned incentives. We've got railroads that are being run by Wall Street for short term profitability, shippers that will chase the cheapest prices to wherever, and trucks (and thus shippers) that are getting a partially free ride on our highway system versus trains that have to pay for their track and right of way maintenance and upgrades.
All this is to say that in many cases there is probably plenty of room for an extra passenger train or two on many routes. (The apparently under utilized UP triple track main in Nebraska hosts exactly none, except for an occasional excursion.) But railroad managements seem to act as if their tracks are so congested with freight that they can't squeeze in a passenger train without paying for an extra track. I'm sure there are congested pieces of railroad, but I don't know how many.
There are congestion points, and passenger drastically reduces the amount of freight that can be hauled, as it's not just one train, but it takes up the capacity of several large freights just to run an 8-car Amtrak speeding through. I'm not particularly sympathetic to the freight railroads in general complaining about Amtrak, but I think they may well have a point that Amtrak is not kicking in enough capital to make improvements to the railroads to offset the capacity that they are using, i.e. crossovers, sidings, double- and triple-tracking, etc.
The other problem is that PSR and passenger traffic are basically total opposites. PSR puts these giant, slow-moving 10,000-15,000 foot monsters out on the rails while passenger is fast and nimble and stops a lot. While Europe has short, nimble electrified freights, US railroads seem to be hell bent on making their freights even bigger and more unwieldy than they already were. Granted, I don't think all US freight should be 20-car trains, but these DPU PSR monsters are a bit out of hand.