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Here is what I came up with. The room is basically 16 x 13. The elevation will rise as you move back from the yard so each loop will be slightly higher than the next. The outer loop has an over under winding through the mountains. The bottom is a crossover not an over under. The black lines are the knee walls. The track will wind in and out of the eaves. Do you guys see anything fundamentally wrong my concept?
How wide is the largest section of layout table suface? What is the highest point the track will hit form zero elevation? The two immediate issues I se are access to the layout being more that 33" wide and if you have enough room to keep your grade down to 2% or below. You are also devoting an awful lot of space to the turntable (and I assume roundhouse) for a fairly small layout.
Is this N or HO?
If HO, you have some very tight curves to the right of the turntable and at upper left in the diagram. I take it the turntable is a 130' one? It looks quite large.
I am having trouble visualizing the benchwork here and there that will allow you access to places like the upper left corner, but especially the lower right corner. All-in-all, I think it is too ambitious a track plan for your space. Otherwise, it is nice, but I would widen several curves.
And I wouldn't have a layout without a roundhouse and turntable unless I were modelling from 1960 onwards.
-Crandell
Basic question - Do you want to focus on operations or "model railfanning" (i.e. watching trains run)?
All your yard tracks lead to the turntable, which is ok, but I'm not sure what you are trying to accomplish there.
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