Optimum Warehouse Location Determination in Humanitarian Supply Chain : A Case study of BNPB Indonesia

Humanitarian Supply Chain is a term used in describing the process to get relief goods from the origin to the recipient at the right time. In Indonesia, BNPB is one of the Governmental non departments that has a duty to assist the President in coordinating the planning and implementation of activities related to disaster management and emergency, ranging from before, at the time, and also at the time after the occurrence of the disaster which covers prevention, emergency preparedness, response, and recovery also. The use of warehouse for storing relief items has been proven to improve efficiency, effectiveness and responsiveness while decreasing the cost incurred in the process. This research aimed to determine the optimal warehouse location by using the Center of gravity method with the considered alternative location are Palangkaraya, Banjarmasin, and Surabaya. The best results is in the area of Palangkaraya with minimum value of amounting to IDR 1, 133, 371, 000.00. Meanwhile, the development of the model will use the ProModel software to be used in determining the alternative design tests before being implemented. The results of Promodel proved that Palangkaraya is the best alternative to minimize the time distribution of disaster relief goods.