A study on vehicle routing and scheduling problem considering summarized delivery of products under the different feasible inventory term

Primarily, the delivery of multiple kinds of products was done separated. However, as the consumers' needs had diversified, the distribution system also increased. This led to increasing the number of trucks and multiple trips to the same store. Because of enlarging the distribution system total cost increased. To address this problem, summarized delivery, mixing the load of deliver products to one store, is introduced. On the contrary, a realistic approach does not exist. In this paper, we utilized two new neighborhoods, and suggest a method which focuses on a feasible inventory term that would influence delivery efficiency.