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Author Dianous, Valérie De ♦ Fievez, Cécile
Source Hyper Articles en Ligne (HAL)
Content type Text
Publisher Elsevier
File Format PDF
Language English
Subject Keyword ARAMIS ♦ RISK CONTROL ♦ RISK ANALYSIS ♦ SAFETY BARRIERS ♦ BOW-TIE ♦ spi ♦ Engineering Sciences [physics]
Abstract Over the last two decades a growing interest for risk analysis has been noted in the industries. The ARAMIS project has defined a methodology for risk assessment. This methodology has been built to help the industrialist to demonstrate that they have a sufficient risk control on their site. Risk analysis consists first in the identification of all the major accidents, assuming that safety functions in place are inefficient. This step of identification of the major accidents uses bow-tie diagrams. Secondly, the safety barriers really implemented on the site are taken into account. The barriers are identified on the bow-ties. An evaluation of their performance (response time, efficiency, and level of confidence) is performed to validate that they are relevant for the expected safety function. At last, the evaluation of their probability of failure enables to assess the frequency of occurrence of the accident. The demonstration of the risk control based on a couple gravity/frequency of occurrence is also possible for all the accident scenarios. During the risk analysis, a practical tool called risk graph is used to assess if the number and the reliability of the safety functions for a given cause are sufficient to reach a good risk control.
ISSN 03043894
Educational Use Research
Learning Resource Type Article
Publisher Date 2006-01-01
e-ISSN 18733336
Journal Journal of Hazardous Materials
Volume Number 130
Issue Number 3
Page Count 14
Starting Page 220
Ending Page 233