So my conjecture as to what all that steel and concrete means...
First thing, all that inwardly angled rebar is THICK. The size of the anti-impale-me caps means that is some serious stuff. I think we're looking at a forest with a big tree and some smaller ones you can make out around the sides. The thick one could be a willow that womps, but i don't see any room for hydraulics or a data line coming up in the middle.
Now, that big PVC pipe looks like it houses data lines, and that the cap was put on very sloppily for a final seal (look at how runny the pvc cement is) so i would say it was put on temporarily to protect the lines before a box goes there to distribute the information.
With that in mind, and the knowledge that the bus bars are already installed in the building, this implies that the vehicle will not be traveling down that concrete slope in the foreground. Perhaps a character, or more likely creature, will reside down there and move up the slope to accost the riders.
I really don't know what's up with the U-shaped short steel braces bolted to the floor, but from that I gather, we're looking at the forest scene where the riders encounter giant spiders.
I wish I still had a copy of the American Scenic layout concept art that was yanked off the interweb in like 5 minutes, then what scene that actually is would be pretty easy to figure out.
Oh, and the wood in the center is probably just used so that the cherry picker can cross over things on the floor without breaking them.
I'd love to hear other ideas!
Thank you sir! And look what happens to be in the outside corner of the building where that picture was taken. A forest, and spiders.