The linear drainage selection calculator was created in cooperation with HAURATON, a leading European manufacturer of rainwater management systems. The linear drainage selection calculator is an intuitive tool for designers, enabling the selection of linear drainage in 3 simple steps. The selection is based on the indicated drainage location and its required hydraulic capacity, determined on the basis of catchment parameters entered by the user. In addition, linking the calculator with access to PANDa data guarantees reliable results, which is necessary for the effective design of stormwater management systems.