Fuzzy optimization for a vehicle routing problem with drones in rural last-mile delivery

The following instances are originally presented in the paper <i>Fuzzy optimization for a vehicle routing problem with drones in rural last-mile delivery</i>.The data includes 84 instances corresponding to different scales and scenarios, as well as a realistic case. Each instance is named "<i>n</i>. <i>d</i>. <i>m</i>. <i>h</i>", where <i>n</i> is the number of customers, <i>d</i> represents the dimension of the grid, <i>m</i> is the generic name of the scenarios with different coordinates and demands, and <i>h</i> refers to the generic name of the altitude scenarios.The first column of each instance file indicates <i>Coordinate X</i> of each customer. The second and third columns are <i>Coordinate Y</i> and <i>Demand,</i><i> </i>respectively<i>. </i>The last column is <i>Altitude</i>.