Cooperative trucks and drones for rural last-mile delivery with steep roads

The following instances are originally presented in the paper <em>Cooperative trucks and drones for rural last-mile delivery with steep roads</em>. The data includes 96 instances corresponding to different scales and scenarios. Each instance is named "<em>n</em>. <em>d</em>. <em>m</em>. <em>h</em>", where <em>n</em> is the number of customers, <em>d</em> represents the dimension of the grid, <em>m</em> is the generic name of the scenarios with different coordinates and demands, and <em>h</em> refers to the generic name of the altitude scenarios. The first column of each instance file indicates <em>Coordinate X</em> of each customer. The second and third columns are <em>Coordinate Y</em> and <em>Demand, </em>respectively<em>. </em>The last column is <em>Altitude</em>. Finally, there is an extra file, named <strong>Supplemental online material,</strong> which provides the following appendices： Appendix A: Provides calculations about the main parameters of drone energy consumption. Appendix B: Discusses the differences between the proposed problem with GVRPD and GVRP-SR. Appendix C: Provides the detailed principles for generating benchmark instances. Appendix D: Provides information about the value of the parameters in the main configuration of the problem.