SYSTEM OF INDIVIDUAL, COLLECTIVE, AND SOCIAL RISK INDICATORS FOR SPECIAL PURPOSE FACILITIES

This study develops an integrated system of individual, collective, and social risk indicators for special purpose facilities under emergency conditions. The proposed approach is based on the assumption that risk at such facilities cannot be represented adequately by a single generalized measure, because hazardous events affect exposed individuals, personnel groups, and concentrated operational structures in different ways and with different consequences. The framework differentiates the analytical role of each indicator and links them to protection zones, personnel distribution, and decision support tasks. Individual risk is used for person level exposure assessment, collective risk for group consequence analysis within specific zones, and social risk for high consequence scenarios involving simultaneous losses or severe operational disruption. The results show that the integrated use of these indicators provides a more rigorous and operationally relevant basis for risk assessment than undifferentiated models. The proposed system improves the analytical interpretation of emergency conditions and supports more justified protective decisions at special purpose facilities.