Petrovskaya N. Estimation of efficiency of use of air space of Ukraine and methods of her maintenance.

The results of the thesis show that one of the most important indicators of an enterprise effective operation under fierce internal and foreign competition is the impartial assessment of its performance that gives a possibility to improve. Its management (supervision). The complex approach to the assessment of an enterprise performance suggested in the thesis allows to find out that performance depends on the results, potential, resources and costs. It has been developed the system of indices that allows to evaluate the role and the place of an air traffic system by defining the efficiency of its operation through the system of airline result. The complex approach for developing the system of indices used in the decision-making processes at air traffic service enterprises of Ukraine is based on the correlation between the main elements of a flight that has been considered in the thesis.