Variable Costs means the Train Operator’s costs which vary as a result of a Category 3 Disruption, a Relevant Cancellation or a Relevant Service Variation (as the case may be) arising directly from changes in train mileage including staff, maintenance, fuel or electricity costs, and the Variable Charge.
Variable Charge means the charge that varies according to kgtm and is calculated in accordance with the formula set out in paragraph 2.2.1, summed across all Services;
Incremental Costs means all reasonable additional costs properly and reasonably incurred by Network Rail in respect of any modification referred to in paragraph 2.8, being the additional reasonable costs (if any) to Network Rail in respect of its obligation to maintain and operate the Network, but excluding:
Allowable Costs means the costs defined as allowable in 42 CFR, Chapter IV, Part 413, as amended to October 1, 2007, except for the purposes of calculating direct medical education costs, where only the reported costs of the interns and residents are allowed. Further, costs are allowable only to the extent that they relate to patient care; are reasonable, ordinary, and necessary; and are not in excess of what a prudent and cost-conscious buyer would pay for the given service or item.
Fixed Costs means costs which do not vary with consumption or volume produced;