I believe Knauff gets three primary commodities - sand, soda ash, and nephaline. They sand comes either from northern Virginia/Maryland or northern Illinois, the soda ash comes from Wyoming, and the nephaline from western Canada. The various plastic/chemical customers products mostly come from the "Chemical Coast" of Texas/Louisiana and predominantly come to CSXT over St Louis. Cullpeper's lumber comes from all over, as does the steel O'neal occasionally gets. Any traffic CSXT has for Shelbyville that comes over Cincinnati simply runs up the Indianapolis sub then back down to Shelbyville - no need to pay CIND to bridge it for them. Likely the only way any of Shelbyville's local traffic would move over Cincinnati would be if CSXT sells the line to CIND and some of the traffic gets rerouted to NS.
As for CIND traffic changing to a CSXT Beech Grove interchange vs. Cincinnati interchange, there simply isn't enough difference in the rates to make it worth while for CIND. The existing (pre-Honda) business in concentrated at the east end of the line. On the traffic they could get a greater share of revenue by going over Beech Grove, it's not enough to justify the extra time and expense of hauling west vs. turning over to CSXT in Cincinnati. The local business in Greensburg is predominantly Norfolk Southern oriented or strictly on-line to Ohio River terminals. Only business that currently make sense to do over the Beech Grove interchange is some of my Sunman traffic, as CIND charges a flat fee for my cars regardless of where they come from, and CSXT charges a mileage based empty on own wheels charge for my cars going to/coming from shop. But even there, there is not that big of a difference in the rate, nor a big enough volume to try and force the interchange back open.
