it is n scale 24" x 48" but i can put two 24" x 48" together if need be. all switch's will be remote, all atlas track. i have 3 main lines . i want all 3 lines to be able to run in and out of the yard. in ether direction. that way i can pull ant train or set of cars on to any line in both directions. i want a fairly big yard so i can spot cars and change up trains. i just cant come up with a good plan, i need to pick others brain on this one. anyone have any good plans? is there any good over head shots of the yard i want? ether real or of a layout?