This is my digital road course. It's currently D132, and is laid out on top of my 4-lane routed track (so I at least get to enjoy the scenery). I plan on re-routing eventually for a 3-lane digital/analog (with some resloting lanes here and there). In plastic, it's about 90', 20' x 12'. With digital I'm racing counter-clockwise.
The top left curve and bottom right curve are about 10" above level. Infield curves are "level", etc.
Bluff Creek Race Park:
Currently the pits are actually on the top straight, and the bottom straight. I needed to have them on opposite sides for D132 as cars would too often slow before making it to the pits and block racing traffic. I plan to route a set of 4-6 pits around the inside of the bottom left curves.
I figure I'll need 8 LB's: 1 pitlane LB ,1 for 2 pit bays, 5 for 5 LC's, and a S/F