I would like to find out more information on this track design. I really like the layout. I want to make it for ho scale but need to know the turn radius. And amount of track need. Any information would be most helpful, thanks for time 
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Here's the closest I could come using Bachman EZ track on a 4x8 tabletop in SCARM. The SCARM file is attached so you can install SCARM (free) and use it to make changes. I also included a parts list so you could see what tracks were used. There are 3 places I didn't take time to join completely and I don't know how much give there will be in whatever track you use. Hope this helps.
Hey Dave, thanks for the information, I have a other question would u happen to know how much track would be need if I want to use flex track instead. Also do I know of any software that help design tracks. Thanks again
http://www.xtrkcad.org/Wikka/HomePage
By my calc, there is about 550" of track, so it will take 15-16 pieces of flex track (36") plus the turnouts and crossing.
Also remember that in HO, you are talking about 2 rail, so reversing loops, like the inner loop on the left hand side, require special wiring to avoid a short. There is a lot of examples that can be found by searching Google for "reversing loop wiring". My understanding, was that DCC and DC required slightly different wiring setups.
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