What Are Those Lines?

Well, I did more than I expected as it went fairly easily. In fact, I got all of the lower-level track lines done and the first part of the track line for going to the upper level. What is shown above is some of the Albany yard.

I had to order some caulk (Polyseamseal) and now that it has arrived, my next step is to install the cork for the track that goes along the backdrop and into what will be the staging yard. This track is the one that goes through the internal backdrop (to be designed, painted, and installed). It is also the only track that I need a stepstool to install. I can reach it (for now) without the stool, but can't install it.

I will probably install the track also so I don't have to use the stepstool again for a while.