Dave I like it the longer yard it is nice. Are still using the same switches from the previous rendering? And 0-64 n the inside loops? I love how layout plans morph it is great
Mike
All I did to my original 12x18 version was move the yard. The outside oval was/is O72, the inside O64 and the loops/switches/yard O54.
In your case, I used O84/O72/O64 and had to change to the #4 switches on the left side. I'm sure I could have gotten things to work with other sizes, but I had no idea what your requirements were, so I put something together quickly just to show how things could fit. I'm more than happy to help someone put "their" ideas into SCARM or RR-Track, but I don't have the vision to design a layout for someone else.
In the case of these designs, other than 12.5x18 and 14x18 there were no other specs given, just a basic sketch with some large ovals and a couple of loops. Someone suggested the yard and I had some time, so I added it, but I made no judgement about the layout itself. If it were my layout, I'd have elevated tracks that weave back and forth across each other rather than 2 ovals side by side all the way around. Dual mains look nice, but they don't need to do so around the whole layout, at least not for me. I like to see trains pass each other going in opposite directions, go over/under each other, weave in and out, change elevations, go through tunnels, etc. Basically, I'm talking the desert Southwest between Tucson and El Paso that we see several times a year in our travels to/from the East Coast. Others like turntables, yards and sidings with lots of switching action. Others like urban running like subways or elevated trains. And that could be the case for this layout. I don't think I followed the original thread, so I don't know what the goal is other than an around-the-room alternative to a table layout.
I also don't have any idea what the budget is, so it's hard to recommend changes. Heck, these layouts, especially yours since you seem to want to use Ross track (not sure why), could probably benefit from some Ross double-crossovers, wyes, curved switches, etc., but all that costs money and I don't recommend those unless someone is stuck for a solution and hasn't considered them. I don't mind trying to help solve a problem, but I just don't have the experience to "butt in" with my ideas for what I'd do with the space. Shoot, I'm sure someone with more experience designing yards can come up with something better than I did.