Flood & Typhoon Command System
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
9 sourced claims on this page, none individually verified yet — turn on “Sources in the text” to see each one.
How this atlas is made · What “last verified” means · What “source-checked” means · The full record behind this page
Rain gauges, pump stations and camera feeds on one live map, plus flood reports from property managers in 14,000 housing estates. The water authority reports 378 waterlogging incidents found by screening 8 million snapshots.
what does this mean?
The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 11 more in Shanghai · 🌊 Flood resilience guide · 🌱 Environment projects
Shanghai's flood control headquarters runs a command system that pulls the delta city's monitoring devices, flood-prone road cameras and pump stations onto a single live map. Version 2.0 went live on 1 June 2020, the first day of the flood season, showing more than 800 real-time monitoring devices, video from 50 flood-prone spots and app reports from property managers in 14,000 housing estates; sensors on flood-prone stretches send data every five minutes and alarm by themselves once water reaches five centimetres. A separate smart drainage system built in 2018 monitors 200 rainfall points, 220 road waterlogging points and 317 pump stations in the central urban area. The 2025 version added automatic screening of camera snapshots and pools data from more than 50 organisations.
📊 Impact
For 2025 the water authority reports the system recognised more than 20,000 devices, analysed about 8 million video snapshots and found 378 waterlogging incidents, and served in 42 emergency activations including the defence against typhoon Zhujiecao. Two years earlier, in its 2023 report to the Yangtze River Commission, the same authority counted 361 flooded road and underpass sections and 165 flooded housing estates over one season, with no deaths and no major property loss.
🎓 Lesson
Every published number counts detections, not floods avoided. The 378 waterlogging incidents of 2025 are what the screening found; the 361 flooded road sections and 165 flooded estates of 2023 are what the season delivered, and no source in this entry sets one against the other or against an earlier year. What the system demonstrably changed is the clock. A sensor alarms by itself at five centimetres, and on the morning of 5 August 2020 an incident caught at 07:58 put traffic police, the drainage service, traffic radio and a navigation app into motion through one automatic notification. The authority's own framing is the honest one: version 1.0 could only watch, version 2.0 can also manage and prevent.
Sources
📅 How old is the evidence?
Two clocks, kept apart: when this entry’s sources were published, and what has happened to its record in the atlas. Documented span: since 2020. 3 of 3 sources carry a publication date, from 4 September 2020 to 28 January 2026.
When the sources were published
- The Paper (澎湃新闻) · pressChina Discipline Inspection and Supervision Daily, via The Paper (press, Sept 2020)
- Shanghai Municipal People's Government · city governmentShanghai Municipal Water Authority — 2023 flood and drought defence report to the Yangtze River Commission
- The Paper (澎湃新闻) · pressShanghai Municipal Water Authority — 2025 case study (published 28 Jan 2026)
Show your work What this page rests on and what it can’t tell you · all 9 claims with their sources · the forensic record
Evidence Passport · public beta 9 addressable claims, 3 source dossiers, one permanent baseline. The passport is unreviewed — an AI-assisted structural migration, not a human or expert endorsement. Every revision keeps a permanent copy under revision history.
Inspect the claims, one by one — verbatim text, sources and caveats for all 9
The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.
clm-5de9809c5a639ac3
quantitative
Version 2.0 went live on 1 June 2020, the first day of the flood season, showing more than 800 real-time monitoring devices, video from 50 flood-prone spots and app reports from property managers in 14,000 housing estates
Sources carrying this claim
clm-068317484c9fa827
descriptive
sensors on flood-prone stretches send data every five minutes and alarm by themselves once water reaches five centimetres
Sources carrying this claim
clm-3050c9a232e087a6
quantitative
A separate smart drainage system built in 2018 monitors 200 rainfall points, 220 road waterlogging points and 317 pump stations in the central urban area
Sources carrying this claim
clm-35589d2216676b90
quantitative
The 2025 version added automatic screening of camera snapshots and pools data from more than 50 organisations
Sources carrying this claim
clm-19321880b236e93e
quantitative
recognised more than 20,000 devices, analysed about 8 million video snapshots and found 378 waterlogging incidents, and served in 42 emergency activations including the defence against typhoon Zhujiecao
Sources carrying this claim
clm-a4836dfdb725bf33
quantitative
the same authority counted 361 flooded road and underpass sections and 165 flooded housing estates over one season, with no deaths and no major property loss
Sources carrying this claim
clm-ae3f6a6bd94b5e65
descriptive
no source in this entry sets one against the other or against an earlier year
Sources carrying this claim
clm-2faf1b711686e11f
quantitative
on the morning of 5 August 2020 an incident caught at 07:58 put traffic police, the drainage service, traffic radio and a navigation app into motion through one automatic notification
Sources carrying this claim
clm-9a2e5df25fd60a72
quantitative
version 1.0 could only watch, version 2.0 can also manage and prevent
Sources carrying this claim
Forensic record — source dossiers, gaps, hashes and the exact revision this page renders
This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.
Awaiting operator and domain-expert review; publication of this revision implies neither.
sha256:31aa7d64991ddfaf934fcc35dec2680f09481afd4a99733b93141cbb5579ba0f
- 9
- of 9 claims mapped
- 3
- source dossiers
- 3
- publication dates recorded
- 0
- archives linked
- 0
- exact locators
- 0
- content captures hashed
Governance facts carried by the record
- Operator
- Shanghai Flood Control Headquarters Office / Shanghai Municipal Water Authority
- Actor types
- city-government
- Funding model
- public
- Funding description
- Not recorded
- Cost
- Not recorded
- Ownership
- Not recorded
- Decision rights
- Not recorded
- Exit conditions
- Not recorded
3 source dossiers
Shanghai Municipal Water Authority — 2025 case study (published 28 Jan 2026)
- Stable source ID
src-c7865159f2ebf3bc- Publisher
- Name not classified · m.thepaper.cn
- Type / language
- web-page · language not classified
- Published
- 2026-01-28
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-08-28
- Dossier created
- 2026-08-28
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Published 28 January 2026 on the Water Authority's own account, as one of five bureau entries in the 2025 collection of "one-network" case studies: "识别2万余个设备，累计分析视频快照约800万张，共发现积水事件378件" (recognised more than 20,000 devices, analysed about 8 million video snapshots, found 378 waterlogging incidents); "50余家单位的百余类数据和31个地图服务" (data of more than a hundred kinds from over 50 organisations, and 31 map services); and "42次应急响应实战" (42 emergency activations), including the defence against typhoon 竹节草. The authority's own account of its own system.
China Discipline Inspection and Supervision Daily, via The Paper (press, Sept 2020)
- Stable source ID
src-5e2bdc341584b1a1- Publisher
- Name not classified · m.thepaper.cn
- Type / language
- web-page · language not classified
- Published
- 2020-09-04
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-08-28
- Dossier created
- 2026-08-28
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Report of 4 September 2020: version 2.0 "6月1日... 正式上线" on the first day of the flood season; the dashboard shows "全市800多处实时监测设备、50个易积水点视频监控以及1.4万个小区物业经理的APP报送"; sensors on flood-prone stretches "每5分钟向后台传输一次数据，当监测到积水达到5公分时，传感器也会自动向系统报警"; the 5 August 2020 case in which an incident detected at 07:58 triggered automatic notification of traffic police, drainage, traffic radio and Amap. It also attributes the "200个降雨监测点，220个道路积水点，以及317座泵站" to a separate smart drainage system built in 2018 for the central urban area, not to this command system. Comparison of the versions: 1.0 "只能以'观'为主", 2.0 can also "管、防".
Shanghai Municipal Water Authority — 2023 flood and drought defence report to the Yangtze River Commission
- Stable source ID
src-ba14752ab4543525- Publisher
- Name not classified · shanghai.gov.cn
- Type / language
- web-page · language not classified
- Published
- 2023-11-20
- Updated
- Not recorded
- Source last checked
- No source-level check date
- Record last verified
- 2026-08-28
- Dossier created
- 2026-08-28
- Retrieved copy
- No local capture recorded
- Archive
- No archived copy linked
- Content hash
- No captured content hash
- Locator
- Descriptive only — not page/paragraph exact
Open the recorded source note
Official report 沪水务〔2023〕930号, issued 17 November and published on the city portal on 20 November 2023: "累计造成道路（下立交）积水361段次、小区积水165个次" over the 2023 season, with "未发生人员伤亡事故和重大财产损失". The season's rainfall was 849.1 mm, about 30 per cent above normal.
- Claims linked
Known limits of this passport
- Publisher names and source languages have not yet been classified; domains are recorded without guessing.
- Existing source notes are descriptive locators, not page- or paragraph-exact citations.
- A missing archive, publication date or content hash is shown as null rather than inferred.
- The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.
Continue exploring
Compare this project
Explore the wider context
📎 Cite this project
1001 Smart Cities (2026). “Flood & Typhoon Command System” — Shanghai, China. The Smart City Atlas. https://1001smartcities.org/projects/shanghai-flood-typhoon-command/ (last verified 2026-08-28). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.