Solving transport mode selection problem with integrated best – worst and WASPAS methods

Abstract

Taşımacılıkta belirlenen bir güzergâh için en düşük maliyetle kaliteli hizmet verecek taşımacılık türünü seçmek çok önemlidir. Çünkü her bir taşımacılık türünün diğerine göre avantajları ve buna bağlı olarak ek maliyetleri mevcuttur. İşletmeler en uygun taşıma modunu seçerken birden çok kriteri ve alternatifleri birlikte değerlendirmek durumundadırlar. Bu değerlendirme birçok değişkenin aynı anda analiz edilmesini gerektiren karmaşık bir süreçten oluşmaktadır. Bu karmaşıklığın çözüm yollarında çok kriterli karar verme teknikleri kullanılabilmektedir. Bu çalışmada, Kayseri ilinde kiraz üretimi üzerinde faaliyet gösteren ve ihracat yapan bir lojistik firmasının taşıma modu seçim problemi ele alınmıştır. Taşıma modu seçim problemi için literatürün taranmasıyla elde edilen ve alanında uzman kişiler olan karar vericiler ile görüşmeler sonucu on üç kriter ve dört alternatif belirlenmiştir. Problemin çözümü için literatürde bu problemin çözümünde henüz kullanılmamış olan En İyi-En Kötü yöntemiyle kriterlerin önem ağırlıkları ve WASPAS (Weighted Aggregated Sum Product Assessment) yöntemiyle de seçenekler değerlendirilerek en uygun alternatifin seçimi gerçekleştirilmiştir. It is very important to choose the mode of transportation that will provide quality service at the lowest cost for a route determined in transportation. Because, each transportation mode has advantages over another and additional costs, accordingly. Businesses have to evaluate multiple criteria and alternatives together when selecting the most appropriate transport mode. This assessment consists of a complex process that requires many variables to be analyzed at the same time. Multi-criteria decision making techniques can be used in solving this complexity. In this study, the transportation mode selection problem of a logistics company operating on cherry production and exporting in Kayseri province is discussed. Through a literature review and interview with the decision makers, who are experts in their field, thirteen criteria and four alternatives have identified for the transport mode selection problem. In order to solve the problem, importance weight of the criteria is determined with the Best-Worst Method and then supplier alternatives are ranked using the WASPAS (Weighted Aggregated Sum Product Assessment) method. Anahtar kelimeler: Taşıma modu seçimi, Çok kriterli karar verme, En iyi-en kötü metodu, WASPAS.

Group decision making in best-worst method when the best and worst are not unique: case study of scholar selection

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