Some results of a modern approach to the Occupational Safety and Health problems

European Directives on OS&H recommend a systematic Risk Analysis of the working activities, whose results should be discussed in some formalized documents. If we consider the Italian situation, at least as resulting from in depth analyses of a number of fatal accidents, the main risk analysis techniques adopted appear based on multi-purpose precompiled forms and Risk matrices deriving from subjective and incomplete assumptions. This is due to a merely formal implementation, heritage of an obsolete prescriptive approach. Hence, the need of a strong contribution to the wide spreading of a Culture of Safety based on study and research in the field of OS&H. Our OS&H research group of Politecnico di Torino, developed and is still working on a well-tested approach covering all phases of Occupational Risk Assessment and Management. The paper deals with some innovative results on Accident Prevention and definition of workers’ exposure models in a System Quality approach