Динамическая модель оценки состояния системы управления охраной труда: применение байесовского подхода

Abstract

The article is a continuation of the analytical approach to assessment of condition of the occupational health and management system. The risk-oriented approach supposes decision-making and taking measures to ensure labor protection according to the risk value. Such approach is based on the constant analysis of hazards and current risks and regular adjustment of the occupational health and management system. The model uses the Bayesian approach which, on the basis of a priori value of a composite indicator of assessment of occupational health and management system, determines the potential changes of this indicator according to such factors as the hazard level of units of occupational health and management system and complexity of fires or accidents. The value of composite indicator of assessment of the condition of occupational health and management system is found via the method of maximization of a posteriori density of probability. The level of hazard of units of occupational health and management is assessed for groups of units homogenous by their economic activities and functional hazard classes, by the values of injury (fatality) risk for employees. The complexity of fires (accidents) is assessed in accordance with the quantity of equipment units engaged in fire extinguishing or accident elimination. In order to assess the efficiency of occupational health and management system, the Harrington function’s intervals are applied. The boundary values of the function complying with a good, satisfactory and poor efficiency of occupational health and management system are determined. As an example, calculation of a composite indicator of assessment of condition of the occupational health and management system for a fire department is considered. It is demonstrated that considered complexity of fires and the hazard level of fire units may significantly change the assessment of efficiency of the occupational health and management system. The general scheme of adjustment of the assessment of efficiency of occupational health and management system is provided.