ABSTRACT
The risk analysis discussed in the paper is concerned with the operation of transportation system where both controlled systems and natural environment occur.
Possibility of breakdown and/or catastrophe is the basic hazard in reaching the tasks. To this end a decision system is described on the system which consists of the environment -diagnostic facilities, -human being, controlled objects of air transportation.
It is assumed that the decision analysis is to be used to create rational premises of safe operation of controlled systems under uncertainty conditions. Diagnosis & Decision System is described on the system which consists of the environment diagnostic facilities human being controlled system. The function of this system is to recognise dangerous operating situations and to generate a warning that some danger might occur as well as to create rational premises for prevention of incorrect decisions that are made during the operation of the controlled system. The processing of messages is carried out in compliance with the conventional Calculus of logic including the double negation law. The Diagnosis & Decision model presented in this paper is universal to a great extent.
