Redundancy as an important source of resilience in the Safety II concept

Bastan, Ondrej; Fiedler, Petr; Benešl, Tomáš; Arm, Jakub

doi:10.1016/j.ifacol.2019.12.690

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…Moreover, none is based on the BBS philosophy and values. This is why the SSP system is an innovative tool, intended to encourage best practices, for supporting the progress of OHS management systems and their evolution to excellence level, in which the focus is directed to highlight the successes and the positive results achieved (safety-II approach), without losing insight on the root cause analysis of the situations that did not go so well (safety-I approach); the evolution from Safety-I to Safety-II mind set is explained by several contemporary authors (Hollnagel 2014;Bastan et al 2019;Wang, Tian, and Lin 2020).…”

Section: Introductionmentioning

confidence: 99%

Testing and practical validation of an individual safety performance assessment methodology – the SSP System

Mira

Jacinto

Dias

et al. 2021

IJOOES

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The “Safety Score Permit” (SSP) is a new tool that focuses on behaviour and is based on a point system which allows individual performance’s tracking, thus encouraging safe actions. The present study aims at verifying the applicability and practical validation of the first SSP version; the ultimate goal is to evaluate its coverage within different industrial contexts and identify limitations and opportunities for improvement. A pilot implementation was conducted in three large companies, presented as three case studies. The records of safety behaviour observations (SBO) of each case were analysed to verify if all the “observed deviations” fitted into the classes and subclasses typified in the system. Although the study basis was the same in all three cases, in two of them the research was based on existing SBO records collected in 2019, whilst in the 3rd case there was a much higher interaction throughout the work. In this case, the process was started from scratch, including the SBO procedure, its monitoring and subsequent data analysis, to create the necessary conditions for the implementation of the full system. The results obtained revealed that, in general, the SSP platform has the ability to cover most deviations identified in an organization. The system has the potential to become a useful and transparent tool to monitor employees’ safety performance at all hierarchical levels; it also helps to identify weaknesses in the companies’ OHS processes. This work was essentially exploratory but it shed light on how to improve the system further and also unveiled new opportunities. A key issue to enhance SSP as a management tool is to expand its scope to all types of human errors, thus offering better support to strategic OHS decisions.

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Section: Introductionmentioning

confidence: 99%

Testing and practical validation of an individual safety performance assessment methodology – the SSP System

Mira

Jacinto

Dias

et al. 2021

IJOOES

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A new redundancy strategy for enabling graceful degradation in resilient robotic flexible assembly cells

Jin,

Marian,

Chahl

2024

Int J Adv Manuf Technol

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The development of resilience in manufacturing systems has drawn more attention than ever. Using redundant components is one of the key strategies for building and enhancing the resilience of a manufacturing system. However, current redundancy strategies require duplicated machinery employed either in active or in standby status. This in turn causes extra costs in designing and achieving resilience. Achieving an efficient deployment of the redundant component in the face of failures is also challenging. In this paper, we introduce a novel redundancy strategy, called adaptive standby redundancy (ASR), to achieve resilient performance for discrete manufacturing systems while reducing the cost of employing the duplicated components that are typically used in traditional systems. This novel strategy permits achievement of high levels of utilisation of the system and graceful degradation in case of failure, keeping the system functional. The strategy is then validated in a developed robotic flexible assembly cell (RFAC), which is tested and results on its efficacy and performance enhancement are discussed.

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Building a safer future: Analysis of studies on safety I and safety II in the construction industry

Sarvari,

Edwards,

Rillie

et al. 2024

Safety Science

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Redundancy as an important source of resilience in the Safety II concept

Cited by 3 publications

References 9 publications

Testing and practical validation of an individual safety performance assessment methodology – the SSP System

Testing and practical validation of an individual safety performance assessment methodology – the SSP System

A new redundancy strategy for enabling graceful degradation in resilient robotic flexible assembly cells

Building a safer future: Analysis of studies on safety I and safety II in the construction industry

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