I usually call the lower level of the 4.5x9 "The SBC"; "Spaghetti Bowl Central"
It's elevated line serving an elevated mine is usually the "Happy Miser Line" as I'm big on Looney Tunes. It mostly hauls silver & gold for Yukon Cornelius, but I've not come up with a good enough name to stick.
The only one I actually made any effort at all for signage; a micro, my hand bent 0-21 is "Industrial Park South". It reminded me of the South Park cartoon. Likely some kind of unintentional plagiarismhere, so the credit was due.