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Article

Critical Risks Method (CRM): A New Safety Allocation Approach for a Critical Infrastructure

1
Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, 03043 Cassino FR, Italy
2
Department of Engineering, University of Naples “Parthenope”, 80100 Naples, Italy
3
Department of Engineering, University “Niccolò Cusano”, 00166 Roma RM, Italy
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(12), 4949; https://doi.org/10.3390/su12124949
Received: 12 May 2020 / Revised: 5 June 2020 / Accepted: 12 June 2020 / Published: 17 June 2020
(This article belongs to the Special Issue Safety and Security in Critical Infrastructures)
In the current research, a safety allocation technique named the Critical Risks Method (CRM) has been developed. Starting from a literature review, we analyzed the shortcomings of conventional methods. The outcomes show the primary two criticalities of the most important safety allocation approaches: (1) They are developed for series configuration, but not for parallel ones; (2) they ordinarily give only qualitative outputs, but not quantitative ones. Moreover, by applying the conventional methods, an increase in safety of the units to ensure the safety target leads to an increase of the production costs of the units. The proposed strategy can overcome the shortcomings of traditional techniques with a safety approach useful to series–parallel systems in order to obtain quantitative outputs in terms of failures in a year. The CRM considers six factors that are able to ensure its applicability to a great variety of critical infrastructures. In addition, CRM is described by a simply analytic definition. The CRM was applied to a critical infrastructure (Liquid Nitrogen Cooling Installation) in a nuclear plant designed with series–parallel units. By comparing the CRM outputs with databank safety values, the proposed method was validated. View Full-Text
Keywords: safety assessment; safety allocation; RAMS analysis; risk management; nuclear system safety assessment; safety allocation; RAMS analysis; risk management; nuclear system
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MDPI and ACS Style

Di Bona, G.; Forcina, A.; Falcone, D.; Silvestri, L. Critical Risks Method (CRM): A New Safety Allocation Approach for a Critical Infrastructure. Sustainability 2020, 12, 4949. https://doi.org/10.3390/su12124949

AMA Style

Di Bona G, Forcina A, Falcone D, Silvestri L. Critical Risks Method (CRM): A New Safety Allocation Approach for a Critical Infrastructure. Sustainability. 2020; 12(12):4949. https://doi.org/10.3390/su12124949

Chicago/Turabian Style

Di Bona, Gianpaolo, Antonio Forcina, Domenico Falcone, and Luca Silvestri. 2020. "Critical Risks Method (CRM): A New Safety Allocation Approach for a Critical Infrastructure" Sustainability 12, no. 12: 4949. https://doi.org/10.3390/su12124949

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