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2 Journal of Polish Safety and Reliability Association

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Quantitative OHS evaluation : RATE procedure compared with traditional reliability methodologies

Pantanali C., Bianco C.

Journal of Polish Safety and Reliability Association

2009

Vol. 2

345--352

The most careful and consolidated risk analysis methods, as FTA, ETA, FMEA/FMECA, focus attention on system reliability. But, looking at OHS, a deep analysis on European data on accidents at work and on work environment in general, shows how reliability is only one aspect of safety problem. These methods then are hardly adaptable when the main aim is to obtain a quantitative assessment of risk for workers; besides, Rother methodologies are nearest to OHS but give only qualitative results like HAZOP, or base their analysis on notdimensional values, fixed by analyst on personal experiences, like methods proposed by UNI EN 1050, by standard MIL-STD-882c and by AISS. RATE is proposed as a new quantitative methodology for OHS, particularly dedicated to SMEs considered as the most interesting from these aspect. The paper compares hypothesis and procedures which traditional quantitative methodologies and RATE are based on, to give evidence at the main approach aspects that have to be modified in order to move from reliability to OHS.

Risk analysis by threshold evaluation (RATE) : a new approach to OHS in small and medium enterprises

Pantanali C., Bianco C., Gioacchino N., Meneghetti A., Lirussi M.

Journal of Polish Safety and Reliability Association

2008

Vol. 2

287--293

Traditional risk assessment methodologies have been thought for large enterprises and they are not easy to handle by small and medium enterprises (SMEs): that can hardly assign resources to safety analysis. However, occupational health and safety is even more important in SMEs since their core competencies are based on skilled manpower. Attempting to solve this problem, a new methodological approach was developed: RATE (Risk Analysis by Threshold Evaluation) is a “bottom up” method which allows safety analysts to follow a standard path, not much time-spending due to a semi-probabilistic approach and enabling identification of hidden risks. RATE perspective is centred on recognising risks for workers rather than machine ways of failure. It is aimed to help entrepreneurs to assess the capacity of their system to reach a desired safety level and to what extent safety measures can improve safety performance.