About Methods of the Substantiation of an Allowable Risk Level

The problem of admissible risk optimisation is described in detail, especially for the case of possible human victims. Different points of view on the problem of «human being cost» are compared, and the approach based on comparing the numbers of saved lives and the risk for the persons, providing the life saving are considered. An information on actual risk level for different kinds of human activities is presented. The mathematical model of creating the public opinion in case of accidents and analysis of changing the function of society discomposibility function in time are presented. Effects commonly ignored during risk estimation are analysed—like departure from the principle of equal providing the risks for objects of equal responsibility, but different quantity and presence of non-linear dependence between the severity of accidents and public reaction.

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