DOI : https://doi.org/10.18517/ijaseit.9.1.8030

The Location-allocation Decision under The Dynamic Increment of Demand for Selecting The Local Distribution Centers to Face Sumatra Megathrust: Study Case of Padang City

Liperda Rahmad Inca (1), Sirivongpaisal Nikorn (2)
(1) Department of Industrial Engineering, Prince of Songkla University, Hatyai, Thailand
(2) Department of Industrial Engineering, Prince of Songkla University, Hatyai, Thailand
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How to cite (IJASEIT) :
Inca, Liperda Rahmad, and Sirivongpaisal Nikorn. “The Location-Allocation Decision under The Dynamic Increment of Demand for Selecting The Local Distribution Centers to Face Sumatra Megathrust: Study Case of Padang City”. International Journal on Advanced Science, Engineering and Information Technology, vol. 9, no. 1, Feb. 2019, pp. 293-9, doi:10.18517/ijaseit.9.1.8030.
Citation Format :
The efforts of providing effective relief assistance in the aftermath of the disaster is prominent to prevent losses and suffering. During the emergency response, the level of preparedness becomes a decisive factor to obtain an immediate countermeasure in order to enhance the capability and to reduce the impact caused by the disaster. Due to its vital role as a transit point to manage large inflow and outflow of the relief commodities, the location-allocation decision to select the appropriate Local Distribution Centers (LDCs) is essential. This research proposes the location-allocation planning for encountering Sumatra Megathrust during 72 hours of the critical period. The dynamic increment of demand over the planning period is considered as a constraint to obtain the set of appropriate LDCs to be established per day. The consideration regarding the expected impassable paths based on the worst case tsunami inundation scenario is acknowledged to ensure the proper access for distributing the relief aids. This work utilizes Geographical Information Systems (GIS) with the maximum coverage analysis to generate the set of alternative LDCs per day. The effectiveness of the alternative LDCs is measured by calculating the opening cost and transportation cost. The finding recommends two LDCs to be opened in the first two days, and three LDCs are considered to be established on the third day. The total costs of the LDCs establishment per day are 1369.05 USD, 669.85 USD, and 1126.53 USD. The depiction of the selected depots-recipient counterparts is provided to acquire the spatial information of the study area.

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