5:38の場合、既存線から維持費を低減でき、地域輸送や貨物も速達性を向上できます In the case of 5:38, maintenance costs can be reduced compared to existing lines, and regional transport and freight can also be delivered faster. 多額費用を要しても、将来の新幹線開通でも二重投資にならないでしょう Even if it costs a lot of money, it will not become a double investment when the Shinkansen line opens in the future.