Thank you for the source. If you can share anything relating to the setup of humpyards then I’d greatly appreciate that too.
Unfortunately no, because I didn't build a hump yard, but only interested how it would be able. So I only know MSGSapper's explanations and additionally I only looked at some hump yard videos on youtube.
Your best bet for seeing how a humpyard is set up would be to download my old Watseka & Kankakee Railroad route from the DLS which has a functioning humpyard in it. Be advised though that the humpyard does not have my new components in it as it was done some years ago and well before I created the new humpyard components. I did however test the new components on this route on my own computer system before release of the new components..
So what are the interlocking towers for? Are they even necessary for a hump yard? I might need additional assistance up to a step by step instruction but I'm putting this route on the back burner. Just need to get all my ducks lined up in a row for when I'm ready to proceed.
I don't use Interlocking towers in my hump yard. The single tower yard present at the hump yard is cosmetic static scenery only. In the real world most hump yards have a tower like this or something similar and it controls hump operations.
What's your general advice for car repair, locomotive servicing shops and refueling stations? How shall I place those? One last thing; are flat switching moves made on the same track trains are humped on or do they have their own track? Certain cars are not authorized to be humped. That's it for now.
From my experience, there's usually a flat yard as well for these kinds of freight cars that can't be humped.