Then momograph focuses on the identification of selected risk from the of railway and their subsequent elimination by applying cost calculations, respectively applying changes of own costs for transport. Increase or decrease of own costs for transport. Increase or decrease of own transport costs may be affected by any change in the technology, used wagons, locomotives, etc. The result of cost calculations is the essessment of risks through the proposal of tariff policy, respectively proposal to amend the existing tariff policy. Individual proposals are expressed by well-defined conditions and tariff rates as instriments for the elimination of the incurred risks and their causes, which may affect the stated goals of railway companies. ukryj opis