Gentlemen, All I can say is thank you so much for the input and fine work performed in SCARM. I would love to be as proficient in SCARM, on a computer, as you are. Since retirement I have not had as much time and usage on any laptop as before with my employment, and I have lost the ability I once had. This is one reason, again, for the Forum and it's great members.
Dave, yes it would be a very low duck under, in the normal sense. To assist with clearance, I make use of a "sit on" creeper to make my way under the wye bridge. The hardest part, now, is getting my knees to cooperate sometimes. But, that is a daily adventure in itself on some days. Also, your baseboard is very close to what I have set up. There actually is more room to the South of the turntable, hope there is enough for a small roundhouse, definitely for fiddle tracks. Also, the location marked as "small airfield" is currently also open, with bridges for the two tracks from the East side of the turntable, heading to the South. The airfield will be on a lift out, possible a "fold down" hinged off the table either East or West of it. I did try the baseboard function to show this, but as with other, did not have the time to put into it of late and figure this out. The layout table is actually 28 ft on the East side, tracks as I drew them are possibly a bit too long in the S to N direction. I could make it 30 ft long, but would have to do away with some shelves, work areas, and access on the South side would be way too tight. I have access on all four sides to reach across, and with the 27" height, I have no great difficulty reaching to most all points.. so far. I have posted pictures of the earlier progress as track was first laid down... somewhere in the Forum posts.
Carl-Moonman, Yes, it is a lot of track, most in Lionel and K Line tubular. As with Elliot, have a lot of track left from prior layouts and what I gathered in recent years. Also, not shown as such, the majority of the purple line is Gargraves track and switches, some tubular intermingled as needed. Also, the purple line is strictly for services areas and making up passenger consists. I do have a lot of Atlas track, switches ( #5 mainline, 072 wyes, double slip-switch, etc.) shorter and long straights, and 072 or greater curves. These I have reserved for the upper level (to be constructed) classification yard, to be located over the West side of the layout. This is to be accessed from the 16" elevation East side yellow line. I like the way, on 3D, you show the blue line as in the open on the SW corner. I was thinking of having it in a long tunnel, exiting out onto the elevated wye... aka Feather River Route.
When I can, I will get up to the layout and take more exact measurements of the layout table, though I have done so several times, never seem to locate where I have them, now.
Jesse TCA 12-68275