Risk acceptance criteria and their development

Philipson, Lloyd L.

doi:10.1007/bf00995743

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…In fact, security means reducing risks to an acceptable level and achieving sufficient benefits. This idea is embodied in the ALARP principle [33].…”

Section: Risk Acceptance Standard and Alarp Principle Decision Makingmentioning

confidence: 99%

Optimal Maintenance Decision Method for Urban Gas Pipelines Based on as Low as Reasonably Practicable Principle

2018

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In the transportation process of urban gas pipelines, there are various uncontrollable risks and uncertainties possibly leading to the failure of gas pipelines and thereby serious consequences, such as city gas shutdown, nearby casualties, and environmental pollution. To avoid these hazards, numerous studies have been performed in identifying and evaluating the occurrence of risks and uncertainties to pipelines. However, discussions on risk reduction and other maintenance work are scarce; therefore, a scientific method to guide decision making is non-existent, thereby resulting in excessive investment in maintenance and reduced maintenance cost of other infrastructures. Therefore, the as low as reasonably practicable (ALARP) principle combined with optimization theory is used to discuss pipeline maintenance decision-making methods in unacceptable regions and ALARP regions. This paper focuses on the analysis of pipeline risk reduction in the ALARP region and proposes three optimization decision models. The case study shows that maintenance decision making should consider the comprehensive impact of maintenance cost to reduce risk and loss cost caused by pipeline failure, and that the further cost–benefit analysis of measures should be performed. The proposed pipeline maintenance decision-making method is an economical method for pipeline operators to make risk decisions under the premise of pipeline safety, which can improve the effectiveness of the use of maintenance resources.

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“…In fact, security means reducing risks to an acceptable level and achieving sufficient benefits. This idea is embodied in the ALARP principle [33].…”

Section: Risk Acceptance Standard and Alarp Principle Decision Makingmentioning

confidence: 99%

Optimal Maintenance Decision Method for Urban Gas Pipelines Based on as Low as Reasonably Practicable Principle

2018

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“…Likewise, in setting acceptance criteria for risk (i.e., risk thresholds), we can only judge the region that separates "acceptable" risks from "unacceptable" ones imperfectly. A variety of rationales exist for differing risk thresholds [3]. Among the most intuitively and logically attractive is the notion that we strive for some natural background level of risk.…”

Section: How Risk Growsmentioning

confidence: 99%

An ultra-fuzzy model of aggregate growth in catastrophic risk potentials

Jablonowski

2008

NAFIPS 2008 - 2008 Annual Meeting of the North American Fuzzy Information Processing Society

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Catastrophic loss potentials are characterized by very low probabilities of devastating (irreversible) damages. As a result of the complexities inherent in such exposures, and the limited availability of data, considerable uncertainties enter into their estimation and treatment. The difficulties increase when we consider the aggregation of such loss potentials. We suggest here that the growth of catastrophic loss potentials can be modeled using ultra-fuzzy sets, which capture the wide uncertainties involved. The ultra-fuzzy model has important implications for the way we manage high-stakes risks.

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“…A collection truck carrying HCW running on the road to a treatment center poses potential risks for the people and the environment along the collection routes. The transportation risk [6,7] involved of a collection system is thus an essential factor that should be evaluated. Historical accident rates for different road types and transportation distances are used to determine the potential transportation risk.…”

Section: Introductionmentioning

confidence: 99%