(二)内贸货物 日本作为岛国,在国内运输中,海运占有相当大的比重。对内贸运输的需求预测,一般都是按港口腹地推算货流,同时也考虑各类运输工具的分担率。内贸所要考虑的是各腹地之间的货流。推求各腹地内贸货流,既可根据本地区各产业的内销产品量与相应的国内运量,也可根据原单位法,方法与外贸货物基本相同。另外,流入某腹地的内贸 (II) Domestic Trade Goods Japan, as an island nation, has a large share of shipping in domestic transportation. The demand forecast of domestic trade and transport are generally calculated according to the hinterland of the port cargo flow, but also consider the share of various modes of transport. Domestic trade to consider is the hinterland of the flow of goods. Pursuing the domestic trade flow within the hinterland can be based on the domestic product of each industry in the region and the corresponding volume of domestic traffic, but also according to the original unit method, the method is basically the same with the foreign trade goods. In addition, the domestic trade into a hinterland