Pengembangan Model Sinkronisasi Distribusi Dua Eselon pada Urban Consolidation Center (UCC) di Sistem Logistik Perkotaan
DOI:
https://doi.org/10.22441/pasti.2025.v19i2.002Keywords:
synchronization, multi-echelon, urban consolidation center, inventory, routing, OptimizationAbstract
Distribusi logistik dua eselon di kawasan perkotaan menghadapi tantangan kompleks, seperti
keterbatasan kapasitas kendaraan, kapasitas penyimpanan, dan optimasi rute distribusi.
Penelitian ini bertujuan mengembangkan model matematis untuk menyinkronkan distribusi
dua eselon pada sistem Urban Consolidation Center (UCC), dengan mengintegrasikan aspek
inventori dan perutean kendaraan secara simultan. Model mencakup tiga skema distribusi
pada eselon pertama (Direct & No Inventory, Direct–Inventory, dan Route–Inventory).
Optimasi pada eselon pertama diselesaikan menggunakan AMPL dengan solver CPLEX,
sedangkan persoalan distribusi pada eselon kedua diseleaikan dengan pendekatan Economic
Order Quantity (EOQ) dan algoritma Large Neighborhood Search (LNS). Eksperimen
dilakukan dengan berbagai skenario, seperti jumlah retailer, supplier, dan biaya
penyimpanan. Skema ketiga (Route & Inventory) terbukti menghasilkan total biaya logistik
paling rendah, dengan efisiensi biaya yang konsisten di berbagai konfigurasi, mencapai
penghematan sebesar 20 - 60%. Model ini berkontribusi dalam perancangan sistem logistik
perkotaan yang lebih hemat biaya dan efisien.
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