The main screen in VRP Solver allows you to load and view the data, set options, and run the model. To load data, type the path and filename of the data file into the box labeled "Load Data From File:", or click the "Browse..." button to search for the file. After typing the filename or filling it using the Browse button, you must load the data by clicking the "Load" button. If the data are successfully read, they will appear in chart form in the box in the middle of the window. See section 5 for details on the data file.
At the bottom of the main screen are two boxes in which you can set the parameters of the problem. The "Truck Capacity" box specifies the maximum allowable volume a vehicle may carry (in units of demand). The "Truck Distance Limit" box specifies the maximum allowable distance a truck may travel in its round trip. If any customer's demand exceeds the truck capacity or is farther from the depot than 1/2 the truck distance limit, it will be placed on a route of its own.
The "Distances" button displays a window showing the distance matrix among pairs of cities in the data and allowing you to choose how distances are computed. See section 6 for more details.
The "Options" button displays a dialog box in which you can fine-tune the algorithm. See section 7 for more details.
To run the model, click the "Run Model" button. The progress bar at the bottom of the screen will indicate how far along the process is.