A hybrid fuzzy MCDM approach for sustainable project portfolio selection problem and an application for a construction company

Yıl 2021, Cilt: 23 Sayı: 2, 182 - 194, 01.12.2021

Gülçin Bektur

https://doi.org/10.33707/akuiibfd.911236

Öz

Although the construction sector is an indispensable sector in meeting human needs, it also has negative environmental and social effects. The construction industry has environmental impacts due to its significant share in consuming scarce resources and big amount of greenhouse gas emissions to the atmosphere. It is also a labor force-intensive industry. Due to the intensity of the labor force, ignoring social concerns cause a negative social image. Consequently, taking sustainability into consideration for construction projects is of great importance in terms of solutions to social and environmental problems. Due to limited resources, it is not possible to implement every project for companies. The most suitable projects are preferred among alternative projects. The problem of project portfolio selection (PPS) is an important decision problem that companies frequently encounter. Many factors should be taken into consideration for selecting projects. In many studies in the literature, the problem of PPS is addressed only by considering economic criteria. In this study, the problem of PPS is addressed with sustainability consideration. Considering sustainability, environmental and social factors have also been taken into account besides economic factors. A hybrid fuzzy multi-criteria decision-making (FMCDM) approach has been used due to uncertainties in the decision process. In the hybrid approach, the methods of Fuzzy complex proportional assessment (F-COPRAS) and Fuzzy step-wise weight assessment ratio analysis (F-SWARA) are used together. An application is conducted for a construction company.

Anahtar Kelimeler

Project portfolio selection problem, Hybrid fuzzy multi criteria decision making method, Fuzzy SWARA, Fuzzy COPRAS

Sürdürülebilir proje portföy seçim problemine hibrit bulanık ÇKKV yaklaşımı ve bir inşaat firması için bir uygulama

Öz

İnşaat sektörü insan ihtiyaçlarının karşılanmasında vazgeçilmez bir sektör olmakla birlikte, olumsuz çevresel ve sosyal etkileri olan bir sektördür. İnşaat sektörü, kıt kaynakların tüketimindeki önemli payı ve atmosfere büyük miktarda sera gazı emisyonu nedeniyle çevresel etkilere sahiptir. Aynı zamanda işgücü yoğun bir endüstridir. İşgücünün yoğunluğundan dolayı sosyal kaygıların göz ardı edilmesi olumsuz bir sosyal imaja neden olmaktadır. Dolayısıyla inşaat projelerinde sürdürülebilirliğin dikkate alınması sosyal ve çevresel sorunların çözümü açısından büyük önem taşımaktadır. Kaynakların kısıtlı olmasından dolayı her projeyi firmaların hayata geçirmesi mümkün değildir. Alternatif projeler arasında en uygun projeler tercih edilmektedir. Proje portföy seçimi (PPS), şirketlerin sıklıkla karşılaştığı önemli bir karar problemidir. Proje seçerken birçok faktör dikkate alınmalıdır. Literatürdeki birçok çalışmada PPS problemi sadece ekonomik kriterler dikkate alınarak ele alınmaktadır. Bu çalışmada, sürdürülebilirlik dikkate alınarak PPS problemi ele alınmıştır. Sürdürülebilirlik göz önünde bulundurularak ekonomik faktörlerin yanı sıra çevresel ve sosyal faktörler de dikkate alınmıştır. Karar sürecindeki belirsizlikler nedeniyle bulanık bir yaklaşım kullanılmıştır. Problemin çözümü için hibrit bulanık çok kriterli karar verme (ÇKKV) yaklaşımı kullanılmaktadır. Alternatif projelerin sürdürülebilirlik açısından değerlendirilmesinde Bulanık karmaşık orantılı değerlendirme (F-COPRAS) ve Bulanık adım adım ağırlık değerlendirme oran analizi (F-SWARA) yöntemleri birlikte kullanılmaktadır. Önerilen yöntem bir inşaat firmasında uygulanmıştır.

Anahtar Kelimeler

Proje portföy seçimi problemi, Hibrit bulanık çok kriterli karar verme yöntemi, Bulanık SWARA, Bulanık COPRAS

Kaynakça

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