Bula, it very much depends on the scale of the operation. A correct implementation of a variable CI on each sector requires a complex and more importantly integrated flight operation solution using updated APMS data and accurate flight planning software. All available on the market. :ok:

Many companies don't know themselves the costs they have. Finding those is the difficult part. Then it should be very easy to calculate the CI for each city pair, up and down.

9G I am curious what is the requirement for APMS data to calculate the CI. APMS is a valuable tool to calculate the Performance Degradation Factor, but this is not a component of the CI calculations.

As for cost determination that presents some challenges, but it just requires some research and a clear understanding of what time costs must be mapped. Not all costs are required only those that are affected if the operating time increases or decreases.

In some companies it would take an Economy Nobel Prize:p