Logistic Network Design for Post-Earthquake Planning: A Case Study for Ümraniye District Under Different Earthquake Scenarios

In this study, a logistic network design for post-earthquake planning was developed. The purpose of this design is to develop a plan that enables earthquake survivors to access to basic humanitarian needs in the shortest time. In this direction, humanitarian aid and need scores were calculated for each neighborhood in a selected region, using the humanitarian aid and need scores emergency material distribution center locations were defined and distribution centers to which each neighborhood will be connected were identified. An integrated two-stage model for logistic network design optimization is proposed. In the first stage, using Analytical Hierarchy Process (AHP), humanitarian aid and need scores of the neighborhoods, each of which is a candidate for a potential distribution center, were determined. In the next stage, with the help of humanitarian aid and need score weighted and distance minimization aiming p-median model, the neighborhoods in which the distribution centers should be located as well as the distribution centers which other neighborhoods should be connected to, were identified. The proposed model was applied to the problem of establishing humanitarian aid distribution centers in the post-earthquake period for the Ümraniye district of Istanbul province, and the model was reconstructed for different earthquake scenarios.

Deprem Sonrasý Planlamaya Yönelik Lojistik Að Tasarýmý: Ümraniye Bölgesinde Farklý Deprem Senaryolarý Ýçin Bir Uygulama

Bu çalýþmada, deprem sonrasý planlamaya yönelik bir lojistik að tasarýmý gerçekleþtirilmiþtir. Bu tasarýmda amaç, deprem sonrasý hayatta kalan kiþilerin, gereksinim duyulan temel insani ihtiyaçlara eriþiminin en kýsa sürede saðlanabileceði bir planlama yapmaktýr. Bu doðrultuda, seçili bir bölgede yer alan her mahallenin insani yardým ve ihtiyaç skoru hesaplanmýþ, insani yardým ve ihtiyaç skoru hesaplamasý üzerinden acil malzeme daðýtým merkezi lokasyonlarý tanýmlanmýþ ve her bir mahallenin hangi daðýtým merkezine baðlanmasý gerektiði ortaya çýkarýlmýþtýr. Lojistik að tasarýmý optimizasyonu için iki aþamalý bütünleþik bir model oluþturulmuþtur. Ýlk aþamada, her biri potansiyel bir malzeme daðýtým merkezi olma adayý olan mahallelerin, Analitik Hiyerarþi Prosesi (AHP) yöntemi yardýmý ile insani yardým ve ihtiyaç skoru ortaya çýkarýlmýþtýr. Sonraki aþamada ise insani yardým ve ihtiyaç skoru aðýrlýklý ve uzaklýk minimizasyonu amaçlý p-medyan modeli yardýmýyla hangi mahallelerde daðýtým merkezi açýlmasý gerektiðinin yaný sýra hangi mahallelerin hangi daðýtým merkezine baðlanmasý gerektiði hesaplanmýþtýr. Önerilen model, Ýstanbul ili Ümraniye ilçesi için, deprem sonrasý süreçte insani yardým daðýtým merkezi kurma problemine uygulanmýþ ve model, farklý deprem senaryolarý için yeniden kurgulanmýþtýr.