(for one round multiply the No. of trains by 2)
where
PT = Product volume required to transport per year (ton or TEU/ year)
TC = Train capacity (ton or TEU/ train /one way)
WD = Working day (assume 365 working day)
As a result, the existing demand for railway freight transportation can be estimated as shown in Table 5, which also agrees with the SRT statistics above.
Table 5: Existing Railway Transportation Demand