Snowman
Well-Known Member
I think you identified one daily yourself, the mine worker run.Anyone have a daily, no matter what, dedicated car scenario?.
Looking for ideas about that one car that causes headaches for the train crew when they're making their run.
Here's a couple of examples...
My mentor has a logging, milling operation in the mountains - there's NO water! Every day - no matter what - a tank car of water has to go to the site and an empty returned. Sounds simple, but locate that car in your delivery plan and its empty.... Oh, and today there's 2 lumber loads to go out and 2 empty cars to drop off....... Headache....
I have a mine quite a distance from town. Every morning a goose takes workers to the mine and brings them home at night. (Suppose to bring them home at night....) My challenge begins when I need to get the goose to the mine turntable and turn it around for the return trip back to town....
Headache....
I suppose a lot of us have those ash cars, or sand cars, that get swapped out on a "when you get around to it" schedule... And if we're honest with ourselves most of the freight we peddle is on a "when you get around to it schedule."
This could be an opportunity for that "I only have a few minutes so I'll just run that dedicated car to the..."
Me, if I have a few extra minutes I might just send the goose back to the mine to bring the miners back home for the night.
Good grief. I had not realized until now you are a lady, but at the same time let me also give ground and space to that, if you will allow me, to push out on that. And, morever, as if it is somehow my [assumed] right-it isn't, but for this purpose, I'll assume you will allow me....Interesting. Model RR in Holland hardly have a fixed schedule. When I see large layouts from a club they often shout at each other to take the train over. What i read about rr sessions in the States (and Canada) is more the real thing. One has to puzzle to fix the printed schedule for that day.
This is done by carcards. Therefore it's obvious what are empties, going to be loaded or full. Every car has a card (either a physic card or programmed) and every train has a schedule. In real its very important for the traindriver to know the weight of the cars, since it determines the brake distance of the train. Once riding in a car with the head operations, he showed me the yard. Suddenly he stopped, contacted the dispatcher that was about to give a GO to that train. Due to 1 empty flat the whole train was delayed. That empty was not supposed to be right behind the locomotives. It was a heavy train, so the empty was a danger. (could be lifted a little and derail). For me, not a technical girl, it was clear, getting a train together is not just putting some loco's and cars together and move the stuff.
Here's the point at which it becomes a bit embarrassing to be a man. :-/
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I will assume you are a person of grace, so let's move on to the actual US railroading practice. An empty flatcar is prone to, due to squeezing, perhaps from both ends...or stretching too, particularly likely to climb up and off the rails. In the territory where my (theoretical) railroad runs, this is real problem. Light flats under compressive train forces tend to climb up and out and over the outside rail, where similar cars placed ahead of other loaded cars (typically long autoracks) will tend to "runaway" quite easily behind a set of locomotives...and, if coupled to the heavier long flats will help "stringline the curve." As you might guess, this means that the heaver cars in a given train are pulled straight across, on a curve, up and over the inside rail due to the tension--not compression--on that given car. The weak link is where the train breaks and comes apart.
This was a real-world problem on the D&RGW, which culminated in an operating rule: Lightly loaded cars, and particularly short cars shall not be directly coupled to long length cars like empty flats or auto-racks. So there was, gradually, and with time and experience a rule: 40' cars shall be coupled only to cars up to 60' in length. And 89' flatcars (loaded with auto-racks or unloaded shall be couple only to cars 60' in length (or longer).