Last Mile Humanitarian Aid Delivery Model with Electric Vehicles to Disaster Areas

Abstract

Natural disasters that cause a lot of loss of life and property in Türkiye occur frequently due to reasons such as our country's geographical location, climatic conditions and landforms. For this reason, it is necessary to be extremely prepared for the consequences of disasters. It is also very important to quickly deliver the necessary materials and equipment to people affected by these disasters. For this reason, electric vehicles were included in the mathematical model proposed in the study due to the fuel problems that will be experienced during the disaster process. In this study, a 0-1 mixed integer last mile humanitarian aid distribution model that will be delivered to hospitals from the designated warehouse after a possible disaster is proposed. The proposed model determines routes that will minimize the total distance of electric vehicles, taking into account their charging and energy consumption. Considering the power outages after the earthquake, solar powered electric vehicle charging stations were preferred. The proposed model was applied for the post-earthquake aid distribution example in Kayseri province. Distance data and consumed energy amounts for the Kayseri province example were entered into the model and solved in the CPLEX program. With this study, an example application was carried out for aid distribution activities with electric vehicles after an earthquake in Kayseri. Additionally, the effectiveness of the use of energy-efficient electric vehicles in disaster management was evaluated in the article.