I attached a rrt. file for those who can open the track plan. Thanks to RTR12 I was able to edit by also attaching a picture of the layout. It is a fastrack around room layout. I have one Z4000 and one Z1000 for power supply (both MTH). If possible I want to use only the Z4000. I have two TIU's. One is the latest with the better signal. I will use that one. Also have two MTH 12 terminal blocks, 200 ft. of 16 gauge wire, and two toggle switches for cutting blocked power on yard tracks (will purchase more). My concerns are where to place the TIU, terminal blocks, power districts/blocks, and wire routing (especially across the walk through access on lower left section of straight double mainline track). I will be placing two lift out bridges (the new Lionel bridge #6-82110) in that open access. It is a basement layout. So there are 2 supporting poles in the basement. One is between the reverse loops, the other is on the lower right between the 2 main lines and the yard station/yard entrance at lower reverse loop entrance. I do need to purchase a volt meter.
I will have a roll out "operations" table from under the benchwork at the bottom of the plan to the right of the open access. I tried to scan the printed plan to my PC. so I can attach it to this message, but it's not working for me. Again your help is appreciated.
Thanks, Fred in New Hope, PA