I like the design as far as how the tracks are laid. Continuous running and enough opportunities for switching moves.
One thing that’s always overlooked in room specs. . Is the ceiling height. I realize lift bridges are a necessity in some layout designs. Especially around the wall layouts with doors involved. Seeing yours is an island design but up against 3 walls. It looks like you may be doing switching moves in the access areas. I’d probably go the duck under route seeing anything that would lift would involve multiple tracks. If you can build the layout high enough the duck under isn’t so bad. With enough ceiling height. You can always raise the floor to step up maybe a foot to where you would be operating.
If the plan is to do your switching moves from the 2 access areas. Higher would work as your overall view would hide the look of it being an oval especially with good structure placement.
