Interdisciplinary development of risk-informed management of fire situations

A method has been developed for supporting risk-informed management of fire situations at the plants. One purpose of the method is to enable the integration of relevant expertise from different domains related to the management. The method provides a shared frame of reference that facilitates crossing the disciplinary boundaries and, therefore, enhances mutual understanding. Another purpose is to gain more understanding of the controllability of fire situations by identifying the possible problems and difficulties of the management and to contribute to the development of adequate support for the management. A scenario analysis method has been created for the design and analysis of different fire situations. It includes identification of critical assessment tasks and analysis of possibilities of the various actors (the control room operators, fire fighters and other relevant parties) to make the critical assessments in a fire situation. A systemic network analysis method has been developed for considering the controllability of fire situations from the co-operational point of view. The way the different parties interact has been regarded as an important factor influencing controllability and, therefore, the way safety is constructed in the management. The analyses have been developed in co-operation with Loviisa and Olkiluoto plants by utilizing interdisciplinary expert group work available at the plants.