The 首都圏外郭放水路ARアプリ is a free Android app developed by 国土交通省 江戸川河川事務所. It falls under the category of Travel & Navigation. This app offers an augmented reality (AR) experience where users can witness the flooding of the pressure adjustment tank during a guided tour.

With the AR feature, users can immerse themselves in the experience of seeing floodwaters flowing into the pressure adjustment tank in real time. This provides a unique and educational opportunity to understand the workings of the flood control system. Additionally, the app includes video explanations of the underground tunnels and inflow shafts that are not part of the guided tour. This allows users to gain a comprehensive understanding of the entire system.

The 首都圏外郭放水路ARアプリ is a valuable tool for anyone interested in learning about flood control and the infrastructure involved in protecting the metropolitan area. It provides a hands-on, interactive experience that is both informative and engaging.