I am flying one route with a 767-3F, no competition, never was. No passenger flights. Seemed like when RI hit 90 its a hard break to greater LF? RI is at 91 in the picture. Just didn't make sense to me.
Or then the demand just changed ...
(Route Image effect is completely linear)
That matches my observations. Assuming there is Actual demand, while RI is growing from 0 to 90, LFs rise slowly. Then, when RI reaches 90 and is on the way to 100, the LFs rise fast.
I don't think it's a problem. The first year of cargo flight is just challenging, since the Actual Demand is also re-aligning during this period.