DEVELOPMENT OF SCALES FOR ASSESSMENT MATRICES OF OCCUPATIONAL RISKS

Abstract

Purpose. To justify the procedure for developing scales for building a matrix of professional risk assessment. Methodology. To build a professional risk assessment matrix, we used the recommendations given in DSTU ISO 73:2013 “Risk Management. Glossary of terms (ISO Guide 73:2009 Risk management – Vocabulary), in which, in order to build a matrix of professional risks, it is assumed to determine the category of consequences of a dangerous event with an assessment of their plausibility and the frequency of occurrence of a dangerous event, which allows determining the “probability” scale. Results. An approach to building a matrix of professional risks has been developed, which consists of three main stages: the first is defining the terms and concepts of the matrix of professional risks and their understanding; the second is determining the value of the scale of frequency (or probability) and severity of the consequences of a dangerous event (incident) with full understanding by company employees of the requirements for their assessment and use, based on statistical data and medical definitions of the type and type of injuries, stages of occupational diseases; the third is defining criteria for assessing occupational risks in accordance with standards, laws, policies, experience and specific requirements set by the organization itself (for example, to achieve a level of “zero” injuries). An example of the assessment of the professional risks of a turner’s job of processing a shaft blank with the development of appropriate forms for assessing the frequency (probability) of the occurrence of a dangerous event (injury of an employee’s limb) and the severity of the consequences (limb fracture) for risk calculation and its documentation is given. The main causes of the dangerous event that occurred with a turner due to the worker’s sleeve being caught were determined. The risk assessment algorithm is described, which consists of five steps: identification of the hazard, determination of the frequency or probability of occurrence of a dangerous event and the severity of the injury, assessment of occupational risks, substantiation of precautionary measures and verification of the obtained risk value. Scientific novelty. The approach to the calculation of professional risk is substantiated by determining the frequency of occurrence of a dangerous event and the severity of the consequences of its occurrence, with the justification of risk management actions. Practical significance. The proposed template of a typical professional risk matrix with criteria for scales of the frequency of occurrence of a dangerous event and the severity of its consequences.