My attic layout has been expanded 5 times over the past 23 years, and now occupies the entire attic. Easier to ask for a little more space, than an entire room!
Twice around the room layout, with upper level shown in green. Closet at the top of the layout, between Ruth and Midway hides the very non-prototypical track work, where upward and downward tracks cross each other. (the black dot is a 4" water vent pipe)
Layout with turntable added in office turret space
Brookmere (Penticton in the background)
Spences Bridge Upper level, Copper Mountain and Penicton on the lower level
Spences Bridge (Upper level)
Bridges open so you can easily gain access inside the "loop" in this around the room layout
turntable, (roundhouse yet to be added). Computer with control system software, screen and printer (located under the desk)
Hope (upper) & Ruth (lower) [there is a skylight above Hope, which brings in quite a bit of light in the daytime]
Midway (Brookmere in foreground)
In the closet, the track work changes levels in two directions, and is quite "unsightly". Signals will tell you if you are clear to enter the closet, and what route the switches are set for.