According to this study and based on the projections that it uses, the costs taken into account are the costs of the buildings allocated to each terminal, servicing and maintenance costs, and operating costs in proportion to their allocation to the passenger function and their use for each terminal.
Deuxièmement, conformément à l'évaluation présentée plus haut (voir points 7.2.2.1 — 7.2.2.5), les compagnies aériennes paient également des tarifs couvrant au moins les coûts marginaux engendrés par chaque accord.