Our local newspaper has Q&A section for community things and a person asked about broken or leaning electric line poles along the Union Pacific railroad tracks here in the south end of the Central valley in California as viewed from highway 99. The wires were still intact but the poles in bad shape and he was wondering why they weren't replaced. The answer came from a local signal maintenance manager who stated the lines are used to send messages to trains (like to emergency stop, trouble ahead, etc.) but that they scheduled to be phased out in the next 10 years. The newer system will send messages directly through the track but in the meantime they will continue to repair as needed the "creaky network" of wires damaged by storms or auto accidents rather than spend money for temporary new ones.
Now I don't know that much about DCC but it almost sounds like model trains are ahead in technology of the real ones!
I actually mention this as I suppose this is going on everywhere (or we may actually be behind the times here) and modern layouts will no doubt have to adjust their detail accuracy in time by removing their poles as well (or for now you can start tipping them over a little -lol).