Quote:
Originally Posted by swimmer_spe
Right now, over siding trains are scheduled such that all other trains go into the siding to let these trains pass. Getting rid of over siding trains would be a good first step to fix some of the rail issues. Returning the former double track that used to exist, would be a good thing too.
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I'm actually curious. What does double-track achieve, from a freight perspective?
I assume anything being shipped by rail isn't exactly time-sensitive. A freight train sitting at a siding doesn't emit much pollution and even the cost of accelerating/decelerating it is fairly minor in the grand scheme of things. I'd imagine scheduling ensures that massive trains have priority anyway.
If the double-track paid off in increased total cost efficiency, why yank it up? The scrap value isn't that high. The savings from maintenance could be something, I guess.
My guess is that the efficiency gains only matter when the trains need frequency/have congestion on the line. Which means more for passenger service than freight. For long-distance freight, making a train longer pays off much more than running more service.
Running short-haul, small trains more frequently isn't really cost-effective for railways. I'm not even sure if it is more effective for goods either as they suffer from the last-mile problem compared to commercial trucking.