| To secure a large output power from an organization of train-cars as a whole and to use adhesion weight effectively, the ratio of the number of locomotive cars within an organization of train-cars is made as large as possible. |
編成全体で大出力を確保し、粘着重量を有効に活用するため、編成内における電動車（動力車）の比率を極力多くする。 |