So is the backstory going to be that Andy went to EPCOT and loved test track so much he came home and built his own in his backyard. LOL Gotta have the synergy!They look like safety barriers for workmen on the roof. No idea if it's for the project or just regular maintenance.
As for the coaster, I noticed they've added little checkered flags to the first launch. Along with the theme on the second launch they are really pushing this as a race track coaster.