This study which is based on the real data of arrival distribution and some constraint proposesthe method of how to decide the performance requirements in the truck terminal system of the transportation company. In our proposed method, we make calculation method that can figure out the number of conveyor needed, by considering the required resources, such as arrival distribution and sorting. Then, based on the real data from the truck terminal, we examine the robustness of the calculation method. As a result, at a certain truck terminal, we discovered that even with a two less conveyors, operation can
conducted as normal.