The purpose of this project is to create a program that is calculating the necessary amount of supporting machinery due to the needs of primary machines. In order to fulfil this assignment it was required to split the project into two parts. A complete site study and the second was the programming itself. The site studys output gives a complete overview of the mine. It displays all primary equipment, all the secondary equipment and their mode of operation. Further on the position of the shovels was evaluated and displayed on a map. Its problem is that it is only a snap shot, because the shovels are moving from one loading block to the next. The site study also describes the layout of the mine with its areas, the roads between and in the areas as well as the stock piles. The program itself uses the information from the site study to express the relations between the secondary machinery with and primary machinery, the stock piles and the roads. The program determines the time needed to do the machines specific work, under using machine specific settings and performance data. This time is compared to the work time per shift and view of the time consumption the amount of machines is calculable. The results for each machine are displayed on separate sheets. These sheets also contain the work time of each machine, the fuel consumption and the amount of material handled.