The ‘PROCESO’ index: a new methodology for the evaluation of operational safety in the chemical industry

Maroño, M., Peña, J.A. and Santamaría, J.

Reliability Engineering and System Safety, 2006, vol. 91, issue 3, 349-361

Abstract: The acknowledgement of industrial installations as complex systems in the early 1980s outstands as a milestone in the path to operational safety. Process plants are social–technical complex systems of a dynamic nature, whose properties depend not only on their components, but also on the inter-relations among them. A comprehensive assessment of operational safety requires a systemic approach, i.e. an integrated framework that includes all the relevant factors influencing safety. Risk analysis methodologies and safety management systems head the list of methods that point in this direction, but they normally require important plant resources. As a consequence, their use is frequently restricted to especially dangerous processes often driven by compliance with legal requirements. In this work a new safety index for the chemical industry, termed the ‘Proceso’ Index (standing for the Spanish terms for PROCedure for the Evaluation of Operational Safety), has been developed. PROCESO is based on the principles of systems theory, has a tree-like structure and considers 25 areas to guide the review of plant safety. The method uses indicators whose respective weight values have been obtained via an expert judgement technique. This paper describes the steps followed to develop this new Operational Safety Index, explains its structure and illustrates its application to process plants.

Keywords: Operational safety index; Performance indicator; Safety indicator; Chemical plants safety; Self-assessment (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:91:y:2006:i:3:p:349-361

DOI: 10.1016/j.ress.2005.01.014

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