Wednesday, October 14, 2009

Harrisburg Yard/Terminal LDE

So it has been a while since I posted anything on the layout. I've been doing a bunch of work related things in the last month or so plus preparing for the CRHS convention. I've also been sketching some different benchwork configurations, trying to determine the best way to frame out my basement as I have a french drain around the floor. Anyways, on to the main topic of this post, Harrisburg Yard.

On the prototype, Harrisburg yard was a "run-through" fueling/servicing area and was a crew change point. It did some general merchandise switching, but it wasn't a major classification yard. It was, however, an intermediary intermodal facility within Conrail. Many blocks of TOFC, COFC, and double-stacks were rerouted/reblocked here. As such, I knew my design would need to have a small facility to service engines, and if it could also incorporate the "run-through" facility that has a engine refueling pad in between the mains, then great. Also, since most trains spent less than an hour, 3-4 arrival/departure yard tracks would be enough. In addition to reblocking intermodal cars, Harrisburg also had its own intermodal terminal. A representation of this was also essential to get a feel of the flow/jobs in the Harrisburg terminal. I mentioned what I was doing at the CRHS summer BBQ and they pointed to a large warehouse and said that should be enough room just to do the Harrisburg terminal area, let alone the line was attempting to model. Anyways, without further adieu, here is the Harrisburg LDE in its current planned form:



As one can see, the mainline curves in from the left, which will be the Harrisburg station area, and proceeds along the back of the yard and while it appears to disappear, it actually is wrapped under the TV terminal to a helix to staging.

Arrival/Departure Tracks
I've got 3 A/D tracks. While I wanted 4, I also had a constraint on keeping the yard width to 18". This plus decent spacing (1.25" or 1.5") limited the A/D to 3 tracks. I also put a runaround the engine terminal in that leads from the main-line so an westbound could be getting fueled on the run-through but another westbound could leave the yard. Each track is over 120" (10 feet) long and my goal is 8' of freight plus engines so I they are long enough to accommodate the trains I'm expecting to run.

Classification Tracks
I've got 10 classification tracks, each one a minimum of 60". Some are stub-ended, some have ladders on each end. It should be understood that Harrisburg did not break down full trains, it really only broke down a few TV trains and stored a block to put on a later train. One or two locals may originate, but we're talking a few cars, not a huge manifest train.

TV Terminal
The TV Terminal has 2 tracks, a lead, an "interchange" track and two loading tracks on the right-side of the picture above, separated by 12" for container storage, movement of the loaders, etc. Overall, this is just to get a feel of the intermodal facility and the types of work that the terminal was used for in the prototype.

Engine Terminal
The engine terminal had the two mainline run-through tracks plus another two tracks for the engine facility and one storage track. While the prototype has them as double-sided ladders, I felt having stub-ended would be better. I'm not interested in having the engine terminal be a showcase of locomotives but a part of normal operations of the layout.

Overall, I like this design, I think it will be interesting to operate, keeps the flavor of the prototype without needing a warehouse. I'll probably plan a little bit on XtrkCad to see how the car flow will be, etc.

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Welcome to the my Conrail Model Railroad site. I will document the research, design, construction and operations of my N-scale model railroad based on Conrail's Ft. Wayne Line in Ohio.

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