| 摘要 |
A transportation planning system comprises a first transportation mode and a second transportation mode having a longer transportation time than the first transportation mode. The transportation planning system determines a first transportation amount transported by the first transportation mode and, after the first transportation amount has been determined, determines a second transportation amount transported by the second transportation mode, wherein: the first transportation amount is an amount obtained by subtracting, from a demand amount prediction value at a future time point when the transportation time from a supply source to a supply destination by the first transportation mode elapses, a stock plan amount at the future time point and an amount of goods arriving at the supply destination by the second transportation mode; and the second transportation amount is a base demand amount that is part of a demand amount prediction value at a future time point when the transport time by the second transportation mode elapses.
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