The main line was consequently changed to the Tokai-do route where the terrain was relatively flat for the most part making it possible to complete the construction quickly even with the level of technology of the time, and the work immediately got underway to finish the project in time for the inauguration of the Imperial Diet in 1890.
そこで、一部を除けば比較的平坦で、当時の技術水準でも早期完成が可能な東海道ルートに変更し、1890年の帝国議会開設に間に合うように至急工事が行われることになった。