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I'd wager the placement of those empty CB's in the train is going to be a focus of investigation.
Part of the problem is that the Class 1s are running much longer trains that they used to. Car placement has become much more critical, and some haven't caught up yet. What worked, even ten years ago, doesn't work today.Trains Magazine, July 2019, page 32: "Freight Train Composition 101"
Yes, this. It’s gotten quite complicated to the point of needing a flow chart (speaking BNSF here) to help determine if your train is “in compliance.” The onus is ultimately still on the train crew. We recently had a crew fired for having loaded spine cars ahead of “x” trailing tons on a Z9 intermodal. It’s often okay to have a train out of compliance for train makeup, but the speed drops to 45. Mountain grade territories have more stringent requirements, as do trains with distributed power.
Wow, putting it on the crew is a crock of *****. "We can't take this train, it's out of compliance" is gonna go over real well when talking to management.
I would think the crew building the train would be responsible for placement of cars.
Wouldn't a computer optimize the car blocking to take things like this into consideration ?