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I　Measures for Heavy Rainfall1. Flood Prevention Headquarters　　When a heavy rain warning is announced in the Tokyo area, a flood prevention management center will be established, and in order to prevent and minimize losses and damages caused by floods, storm surges, etc., the level of rainfall and river water will be monitored. In cooperation with the Japan Meteorological Agency, a disaster prevention weather forecast will be announced and transmitted to related organizations such as local governors (flood prevention management organizations).Municipalities with a common river system, sphere or watershed have a high chance of being flooded simultaneously due to an increased water level or flood caused by torrential rain; hence useful information regarding evacuation information for municipalities is shared with each other.In June 2022, TMG joined the Cabinet Office to establish the Review Committee on Wide Area Evacuations in the Capital Region, which consists of the national government, local municipalities in Tokyo, neighboring prefectures, transportation companies, media companies, and other related organizations, and is studying specific measures for wide area evacuations in case of a large-scale flood in the capital region.　Through the TMG disaster prevention website and disaster preparedness on X (formerly Twitter), damage information, train situations, traffic information, etc., are provided to Tokyo metropolitan residents and we support an initial prompt response in the event of a disaster and also support those who are outside and returning home.　We provide information on evacuation to Tokyo residents by utilizing broadcast media under agreement with the media when a disaster is to possibly happen.　In addition to flood related information such as levels of rainfall and rivers measured in Tokyo, river monitoring video, weather forecast including heavy rain warnings, flood forecast and sediment disaster warning, the reservoir storage rate of regulating ponds has been released in real time since June 2024. It is also available in English, simplified Chinese, and Korean.[Tokyo Metropolitan Government General Flood Prevention Information System][Version for PC] https://www.kasen-suibo.metro.tokyo.lg.jp/im/uryosuii/tsim0102g.html[Version for Smart Phone] https://www.kasen-suibo.metro.tokyo.lg.jp/s/tsim0401g.html[Mobile phone version] https://www.kasen-suibo.metro.tokyo.lg.jp/im/i/tsim0201g.html[Tokyo Flood Prevention X (formerly Twitter) Account] https://twitter.com/tokyo_bousai　We have been streaming videos on YouTube in real time since June 1, 2021 of the rivers in Tokyo where water levels rise rapidly due to heavy rains.[Tokyo Flood Prevention YouTube Channel]https://www.youtube.com/channel/UCaydvLwWthLMbfKLEQSY2UQ（PC）（Smart Phone）（Mobile phone）X (formerly Twitter)2. Establishment of Disaster Response HeadquartersWhen torrential rains or other warnings are announced in Tokyo, we take a stance of focusing on communicating information, and communicate and coordinate with the wards and municipalities. We set up a disaster response measures headquarters as necessary, and have a unified and flexible system.3. Information Sharing by Municipalities with a Common River System4. Wide area evacuation measures5. Informing the Residents○ TMG Disaster Prevention Website and Disaster Prevention on X (formerly Twitter)○ Communication of information on evacuation○ Tokyo Metropolitan Government General Flood Prevention Information System○ Video streaming of river surveillance cameras45