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Occupational hazards management using a grey-based decision-making approach

Tabor Joanna, Cioca Lucian-Ionel

System Safety : Human - Technical Facility - Environment

2019

Vol. 1, nr 1

1--9

The objective of this paper is to present and verify the decision-making model which makes it possible to streamline the occupational hazards that tend to occur in the work environment, according to the adopted decision-making criteria. In this way, it will be possible to reduce inconsistencies of decision-makers deciding to focus their preventive measures upon the most important hazards, in the situation when the same assessments for hazards are obtained using classical matrix techniques. Within this model, a grey approach was proposed, which makes it possible for experts to use linguistic variables in such assessments. The following three risk assessment parameters were used as the criteria: probability of occurrence of hazards, level of their consequences, and a possibility to avoid them. The model was verified in a furniture manufacturing company on the basis of 17 key hazards assessment, which had been carried out by: an executive officer, a direct supervision employee, a work health and safety officer, and an expert coming from outside the company. This paper remedies some shortcomings in using the grey theory in occupational risk management, and constitutes an original application of this concept in the work safety area.

A grey-based decision-making approach to the improvement of OHS management system

Tabor J.

Polish Journal of Management Studies

2018

Vol. 18, No. 1

389--402

The objective of this paper is to present and verify the approach, using which it is possible to rank management system elements according to the decision-making criteria adopted by decision-makers, in order to reduce incoherence levels within the frameworks of the decision-making process concerning targeting of the system improvement measures. This approach makes use of the grey systems concept and properties of grey numbers. The following three cost-based parameters were used as assessment criteria of the particular elements of the system in terms of improvements: meeting requirements, performance costs, and performance time. This approach was verified in a furniture manufacturing company, based upon the work health and safety management system according to PN-N 18001, which was in place in this company. By using the proposed approach, it was possible to rank all the assessed elements of the system, and to identify those elements that could be improved in the first sequence, taking into account the adopted assessment criteria. This paper makes up for shortages in using the grey system theory to improve work health and safety management systems, and constitutes an original application of this concept in the area of work health and safety management systems. The approach presented herein may constitute a significant tool of improving not only health and safety management systems, but also other management systems as well.

Celem artykułu jest przedstawienie i zweryfikowanie podejścia za pomocą, którego można uporządkować elementy systemu zarządzania według przyjętych przez decydentów kryteriów decyzyjnych, co pozwoli na zmniejszenie niespójności w ramach podejmowania decyzji o ukierunkowaniu działań doskonalących system. W podejściu wykorzystano koncepcję szarych systemów oraz właściwości szarych liczb. Jako kryteria oceny, poszczególnych elementów systemu pod kątem doskonalenia, wykorzystano trzy parametry o charakterze kosztowym: spełnienie wymagań, koszty realizacji oraz czas realizacji. Podejście zostało zweryfikowane w firmie z branży produkcji mebli, na bazie funkcjonującego w tym przedsiębiorstwie systemu zarządzania bhp wg PN-N 18001. Wykorzystanie zaproponowanego podejścia umożliwiło uszeregowanie wszystkich elementów ocenianego systemu oraz zidentyfikowanie tych, które można udoskonalić w pierwszej kolejności, uwzględniając przyjęte kryteria oceny. Niniejszy artykuł uzupełnia braki w zakresie wykorzystania teorii szarych systemów do doskonalenia systemów zarządzania bhp i stanowi oryginalne zastosowanie tej koncepcji w ramach zarządzania bezpieczeństwem i higieną pracy. Zaprezentowane podejście może stanowić istotne narzędzie w ramach doskonalenia systemów zarządzania, nie tylko dedykowanych bhp.