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Ab s t r a c t. The present article describes research of information models' design and synthesis as a necessary component of the information provision system for decision-makers in infocommunication air traffic control systems. It gives analysis of possible information models' construction and suggests linear or hierarchical structure for relatively simple situations. We use combined information model that permits to take into account possible changes in any situation, which lead to a significant increase of displayed information. The present study shows interrelations that give an opportunity to evaluate the characteristics of information models at the stage of their ergonomic design and to determine the number of information elements in a single displayed program, considering the minimization of search time of the specified element. It suggests possible variants of common use for different ways of information display of an individual as well as group and collective usage. K e ywor d s : information model; air situation, information element; display, activity of operators; air traffic control.

Ab s t r a c t. The present article represents structure, content and sequence of steps of the method of adaptive control of the information model's display parameters of the air situation. The problem describes complexity of the particular air situation in automated air traffic control system. The method assumes that the degree of complexity of the situation is recognized on the basis of heterogeneous data received from the sources. According to the results of experimental studies, we show the dependence of the average time of perception and the probability of error-free perception of the information model of the air situation by the operator on the coefficient of the overlapping forms. K e ywor d s : air traffic control; information environment interface; aircraft tracking form; decision-making support; air traffic operator activities; information model.