Classification of occupational safety risks with entropy-based TOPSIS-Sort

Abstract

The construction sector is one of the sectors with the highest risk in terms of occupational health and safety due to the frequency of occupational accidents and the weight of their consequences. For this reason, it is of great importance for the enterprises in the sector to regularly review the risk factors and take the necessary precautions. In this study, an integrated risk assessment approach is proposed in order to categorize risks and take effective measures. With the proposed method, 32 risks determined in a construction company were evaluated according to severity, occurence and detectability criteria. Group decision making approach was used and the evaluations of three decision makers were combined. The importance degrees of three risk factors were obtained by the entropy weighting method. Using the TOPSIS-Sort B method, risks were assigned to three predetermined risk clusters. When the results were examined, it was seen that 11 risks were assigned to the high risk cluster, 10 risks to the medium risk cluster and 11 risks to the low risk cluster.

Keywords

• OHS risk assessment
• TOPSIS-Sort
• Entropy weighting

Entropi tabanlı TOPSIS-Sort ile iş güvenliği risklerinin sınıflandırılması

Abstract

İnşaat sektörü, iş kazalarının yaşanma sıklığı ve sonuçlarının ağırlığı sebebiyle iş sağlığı ve güvenliği açısından en yüksek riske sahip sektörlerden birisidir. Bu nedenle sektörde yer alan işletmelerin risk faktörlerini düzenli olarak gözden geçirerek gerekli önlemleri alması büyük önem taşımaktadır. Bu çalışmada, risklerin kategorize edilerek, etkin önlemlerin alınabilmesi amacıyla bütünleşik bir risk değerlendirme yaklaşımı önerilmiştir. Önerilen yöntem ile bir inşaat firmasında belirlenen 32 adet risk, şiddet, olasılık ve fark edilebilirlik kriterlerine göre değerlendirilmiştir. Çalışmada grup karar verme yaklaşımı kullanılmış ve üç farklı karar vericinin değerlendirmeleri birleştirilmiştir. Belirlenen üç risk faktörünün önem dereceleri entropi ağırlıklandırma yöntemiyle elde edilmiştir. TOPSIS-Sort B yöntemi kullanılarak riskler, önceden belirlenmiş üç risk sınıfına atanmıştır. Sonuçlar incelendiğinde, 11 riskin yüksek risk sınıfına, 10 riskin orta risk sınıfına ve 11 riskin düşük risk sınıfına atandığı görülmüştür.

Keywords

• İSG risk değerlendirme
• TOPSIS-Sort
• Entropi ağırlıklandırma

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