That I admit I don't yet know how to model. What I know is that they will be two costs...fixed cost and variable..which is why the more trains you add...the more profitable..because the fixed cost remain constant.
The first year of operation - although we were not running the rain commercially (except passenger services) - we still had to pay for 2,000 or so workers who are running the train. We gave Chinese company 5yrs to ran it. It would be interesting to see the agreeement. How much we pay them? The Train operator that is.
You lost me when you leap-frogged from tonnes hauled to profitability without discussing cost.?