MASS BALANCED ACCESSIBILITY MODEL IN DEMAND-BASED SITE SELECTION APPROACH OF COLD STORAGES: THE EXAMPLE OF IZMIR

Öz

If the time between the production and consumption of heat-sensitive products is prolonged, a chain logistics structure with stops is needed. This structure is the system in which the cold storages undertake the intermediate stops in the chain, which generally takes place in the form of production-transport-storage-transport-consumption. The location of a facility between two transportation processes directly affects transportation costs, product freshness, transportation time, and accessibility. Spatial planning of cold storage usually consists of a location between micro-scale production and consumption zones and is chosen due to various environmental dynamics. However, the lack of a holistic framework that balances traffic-based accessibility and demand among these dynamics can distract the problem from the realism of travel time and demand fluctuations. In this study, in order to increase the cold chain efficiency in food transportation, the traffic assignment data carried out within the scope of the Izmir Sustainable Urban Logistics Plan was used. A strategic location selection approach has been proposed by using traffic-based accessibility and demand criteria in cold storage location selection criteria. This approach has been achieved by determining buffer zones in corridors formed from product and transport types.

Anahtar Kelimeler

• Site Selection
• Accessibility
• Cold Storage
• Urban Logistic Plan
• Izmir.

SOĞUK HAVA DEPOLARININ TALEP BAZLI YER SEÇİMİ YAKLAŞIMINDA KÜTLE DENGELİ ERİŞEBİLİRLİK MODELİ: İZMİR ÖRNEĞİ

Öz

Isıya duyarlı ürünlerin üretimi ve tüketimi arasındaki sürenin uzaması halinde duraklı bir zincir lojistik yapısına ihtiyaç duyulur. Bu yapı genel olarak üretim-taşıma-depolama-taşıma-tüketim şeklinde gerçekleşen zincirde soğuk hava depolarının ara durak düğümlerini üstlendiği sistemlerdir. İki taşıma süreci arasında kalan bir tesisin bulunduğu konum dolayısı ile taşıma maliyetlerini, ürün tazeliğini, ulaşım süresini, erişebilirliği doğrudan etkilemektedir. Soğuk hava depolarının mekansal planlamaları genellikle mikro ölçekte üretim ve tüketim bölgelerinin arasında bulunan ve çeşitli çevresel dinamikler nedeniyle seçilen bir konumdan oluşmaktadır. Ancak bu dinamikler arasında trafik bazlı erişilebilirlik ve talep dengesini sağlayan bütünsel bir çerçevenin eksikliği problemi seyahat süresi ve talep dalgalanmalarının gerçekçiliğinden uzaklaştırabilmektedir. Bu çalışmada gıda taşımacılığında soğuk zincir verimliliğini artırmak amacıyla İzmir Sürdürülebilir Kentsel Lojistik Planı kapsamında gerçekleştirilen trafik ataması verilerinden yararlanılmıştır. Soğuk hava depoları yer seçim kriterlerinde trafik bazlı erişilebilirlik ve talep ölçütleri kullanılarak stratejik yer seçimi yaklaşımı önerilmiştir. Bu yaklaşım ürün ve taşıma türlerinden oluşturulan koridorlarda tampon bölgelerin belirlenmesi ile elde edilmiştir.

Anahtar Kelimeler

• Yer Seçimi
• Erişilebilirlik
• Soğuk Hava Deposu
• Lojistik
• İzmir
• Kentsel Lojistik Plan

Kaynakça

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