Evaluation Of Blood Distribution Route in The Downstream Supply Chain of The Indonesian Red Cross Jember

The PMI Blood Donor Unit (UDD) throughout Indonesia, including the UDD PMI Jember, has an important role in distributing blood to various hospitals quickly and precisely. Therefore, distribution route efficiency is needed so that the blood delivery process can be carried out more quickly, on time, and cost-effectively. This study aims to evaluate the blood distribution routes of PMI Jember using the Clarke-Wright Savings Algorithm (CWS) and Nearest Neighbor (NN). The analysis was conducted by comparing travel distance and operational costs before and after optimization. The findings show Clarke-Wright Savings algorithm demonstrated a higher efficacy than the Nearest Neighbor method on the 20th of November 2024, with cost savings ranging from 48% to 67% in each shift, when servicing seven hospital locations. Conversely, the Nearest Neighbor method exhibited superior efficiency on the 21st of November 2024 when the number of destination locations increased to 13 hospitals. The efficiency comparison indicates that the number of distribution destination locations has a significant impact on the performance of both methods.