The integrated problem of locating, allocating, and routing transportation vehicles in the blood product supply chain during crisis conditions

In this research, a multi-objective model has been developed to minimize costs, blood transfer time, and shortages, taking into account the blood supply chain in a crisis situation at three levels: supply, processing, and distribution, and whole blood and its derivatives. The scenarios examined in this issue pertain to the intensity of the earthquake (severe, moderate) and a ۱۰-day time frame. In this research, inventory control is performed based on various scenarios, and by considering this aspect alongside the demand, the model determines whether a shortage will occur. If the establishment of centers is warranted, the proposed potential locations from the Isfahan crisis management headquarters will be utilized, and the optimal site for setting up the field hospital and mobile blood collection centers will be chosen. Furthermore, by providing a precise model that incorporates most real-world details, this model has proven effective in reducing costs and shortages of blood products. This model has been solved using GAMS software with the CPLEX solver, and the case study focuses on the city of Isfahan.

کلیدواژه ها:

Blood supply chain ، Crisis ، multi-objective mathematical model ، Blood products ، location-allocation ، time-dependent routing