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Journals / İşletme Bilimi Dergisi / 2026 / Cilt: 14 Sayı: 3

Disaster Logistics Depot Site Selection Using Set Coverage and P-Median Methods: A Hybrid Multi-Objective Model Proposal

Küme Kapsama ve P Medyan Yöntemleriyle Afet Lojistik Depo Yer Seçimi: Hibrit Çok Amaçlı Bir Model Önerisi

Ömür Demirer, Mustafa Erkul

Pages
754–781
Publication Date
2026-09-25
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Abstract

This study develops a hybrid multi-objective optimization model to determine optimal locations for temporary logistics warehouses in central districts of Çorum province within the scope of disaster logistics. The model presents a four-stage approach that evaluates risk factors and operational efficiency together through the integration of set covering and p-median methods. Using microzonation data obtained from 521 drilling points by Çorum Municipality, the criteria of settlement suitability, soil amplification factor, soil bearing capacity, and liquefaction potential were weighted using the ENTROPY method, and neighborhood-based risk scores were calculated using the TOPSIS method. These scores were combined with population data to create composite scores. The model was tested in three different scenarios: security-focused, balanced, and service-focused. Obtaining the same results in all scenarios demonstrates the robust nature of the solution. As a result of the analysis, 7 warehouse locations were determined in Bahçelievler, Buharaevler, Gülabibey, Kale, Mimarsinan, Ulukavak, and Üçtutlar neighborhoods with an optimal coverage distance of 2,0 km. The model achieved 100% coverage ratio, 0,3 km average service distance, and 60,1% capacity utilization rate. This study presents original contributions to the literature in terms of integrating scientific microzonation data into optimization models and applying hybrid approaches to disaster logistics.

Özet

Bu çalışmada, afet lojistiği kapsamında Çorum ili merkez mahallelerinde geçici lojistik depoların optimal yerlerini belirlemek amacıyla hibrit çok amaçlı bir optimizasyon modeli geliştirilmiştir. Model, küme kapsama ve p-medyan yöntemlerinin entegrasyonu ile risk faktörlerini ve operasyonel verimliliği birlikte değerlendiren dört aşamalı bir yaklaşım sunmaktadır. Çorum Belediyesi’nin 521 sondaj noktasından elde edilen mikrobölgeleme verileri kullanılarak, yerleşime uygunluk, zemin büyütme faktörü, zemin dayanım kapasitesi ve sıvılaşma potansiyeli kriterleri ENTROPY yöntemi ile ağırlıklandırılmış, TOPSIS yöntemi ile mahalle bazlı risk skorları hesaplanmıştır. Bu skorlar nüfus verileri ile birleştirilerek kompozit skorlar oluşturulmuştur. Model, güvenlik odaklı, dengeli ve hizmet odaklı olmak üzere üç farklı senaryoda test edilmiştir. Tüm senaryolarda aynı sonuçların elde edilmesi, çözümün dayanıklı nitelikte olduğunu göstermektedir. Analiz sonucunda 2,0 km optimal kapsama mesafesi ile Bahçelievler, Buharaevler, Gülabibey, Kale, Mimarsinan, Ulukavak ve Üçtutlar mahallelerinde 7 depo lokasyonu belirlenmiştir. Model %100 kapsama oranı, 0,3 km ortalama hizmet mesafesi ve %60,1 kapasite kullanım oranı sağlamıştır. Bu çalışma, bilimsel mikrobölgeleme verilerinin optimizasyon modeline entegre edilmesi ve hibrit yaklaşımın afet lojistiği alanına uygulanması açısından literatüre özgün katkılar sunmaktadır.

Keywords
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Cite This Article

Demirer, Ö., Erkul, M. (2026). Disaster Logistics Depot Site Selection Using Set Coverage and P-Median Methods: A Hybrid Multi-Objective Model Proposal. İşletme Bilimi Dergisi, Cilt: 14 Sayı: 3, 754–781. https://doi.org/10.22139/jobs.1773126

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