Permanent project revision
Revision 2026-08-28-p4-uplift · effective 2026-08-28
Current revision. This is the snapshot used by the live entity page.
Created the first structured Evidence Passport with 9 claims and 3 source dossiers.
sha256:31aa7d64991ddfaf934fcc35dec2680f09481afd4a99733b93141cbb5579ba0f
add /evidencePassport — Added claim-level evidence mapping and source dossiers.add /revisionHistory — Established a permanent, hash-addressed baseline revision.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
clm-068317484c9fa827
descriptive
sensors on flood-prone stretches send data every five minutes and alarm by themselves once water reaches five centimetres
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
clm-35589d2216676b90
quantitative
The 2025 version added automatic screening of camera snapshots and pools data from more than 50 organisations
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
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
clm-ae3f6a6bd94b5e65
descriptive
no source in this entry sets one against the other or against an earlier year
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
clm-9a2e5df25fd60a72
quantitative
version 1.0 could only watch, version 2.0 can also manage and prevent
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
src-c7865159f2ebf3bcPublished 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.
src-5e2bdc341584b1a1Report 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".
src-ba14752ab4543525Official 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.