Well Ed, (and others) I think I pulled a hat trick last night, by doing a little leg work, I think i have spotted a primary culprit that ties several issues together.
Being: Reduced Train frequency on the NS this past year, constraint of NS traffic to “spurts” throughout the day, and the “stranded” CSX loco sets I saw idling for quite some time.
The culprit? (perhaps poorly planned) “Growth” of Triple crown.
The TC facility is nestled into the former Pennsey “Piqua” yard, down the CSX rails south easterly from the “Mike” junction/crossing of the NS Detroit to points west/CSX former Pennsey main line to Chicago.
“Mike” is a key crossing where two mainlines cross and in order to get an inbound Triple Crown Train from the detroit North east line (see map at link below) into the triple crown yard the train has to pull past “mike” then pu***hose road railers across the South west inbound NS line, and down the one remaining line to Piqua. A feat that is complicated if ANY west bound Triple Crown train needs to come out of the facility first.
I watched quite a chess game last night, very interesting.
It is no wonder to me that NS reroutes every possible train around this mess whenever possible, nor is it any surprise that CSX wants out of the mess completely (leasing the lines to others)
I think someone mentioned a while back that NS was going to operate the former Pennsy west to Chicago? If true, that would make perfect sense, giving NS exclusive control of “mike” junction, and letting the CSX Lessee worry about Piqua and points east.
If Thats the way it washes, I’d expect NS will be doubling the spur from Mike to Triple crown, and solve a host of problems (just guessin’)