奥羽新幹線【山形・秋田の未来を変えるか？現在地を徹底調査】

This time, we will explore the Ou Shinkansen based on cost-benefit analysis and research reports aimed at the early realization of the Uetsu and Ou Shinkansen lines. The Ou Shinkansen, a full-standard high-speed rail line connecting Fukushima, Yamagata, and Akita prefectures, was included in the national basic plan in 1973, but construction has yet to begin. The current Yamagata Shinkansen is a mini-Shinkansen built on improved conventional lines, limiting its speed. However, if it were upgraded to full standard, the travel time from Tokyo to Yamagata would be drastically reduced to 1 hour and 40 minutes, and from Tokyo to Akita to 2 hours and 23 minutes. The importance of the Japan Sea route was re-emphasized after the Great East Japan Earthquake, and for Yamagata and Akita, which are experiencing population decline, it is expected to be a key to regional revitalization by expanding tourism and business exchange. On the other hand, challenges remain, such as the project cost exceeding 1 trillion yen and a cost-benefit ratio below 1. However, regional activity is increasing, with six prefectures, mainly Yamagata, collaborating to conduct studies. In particular, the proposed Yonezawa Tunnel between Fukushima and Yonezawa is attracting attention as the first step toward realizing the Ou Shinkansen, and its completion would also lead to a reduction in travel time on the Yamagata Shinkansen. While the Ou Shinkansen faces challenges, it is once again gaining attention as a concept with the potential to significantly change the future of the region. Conclusion • The importance of the Ou Shinkansen has been re-evaluated since the earthquake, and it is expected to be a Shinkansen concept that will be developed in stages. • The proposed Yonezawa Tunnel is positioned as a section for early development, and the development scheme is currently under consideration.