RR1

This is a new layout I am looking at building in a spare basement room. The dead end track in the lower right goes to a living room loop.
The idea here is that I can run up to 3 trains with no user input or 1 train that covers all the main lines. Basically an upper loop, lower loop, living room loop or combine this all.
As of right now I am in the brainstorming stage. Only focusing on the main lines. Still need to decide where to put tunnels and bridges.
Update 10/28/26
I am happy with the layout. I could go wider with the tables but I think the physical reach will become too large. I plan to use all flex track for the layout but find found it easier to use this tool with the short sections for the most part. The layout will be mostly mountains tree covered. I will only have a few structures on the layout. It is designed for running long trains. 
Update 11/1/26
Increased table size from 36" to 40" all the way around to enable a minimum of 15" radius. Had to redraw everything from scratch, used a kato 15" curve as peco didn't have one.
Update 11/3/26
Added a lower level with 2 reverse loops so I can change the direction of any train.
Update 11/6/26
Added in the entire living room loop that connects to the new layout by going through a wall. Adding building, trees, grass.
Update 11/7/26
Added a maintenance helix to allow a train to go under the layout to a work bench. This will also serve as the DCC programming track.
Added photos of current living room loop.
Tuned half of the top loop into 2 main parallel lines.

Update 11/8/26
Went ahead and made the entire upper level a parallel track. It also has a double crossover that will allow either 2 trains on the top level or 1 that runs from the inter loop to outer loop and back again. 
Update 11/9/26
Added another double crossover to the reverse loop, now I can run a train that will alternate around the main and reverse each time. 
Using the iRunTrains has been a big help in testing out my track before I start.