One Network Unified Management (city operations digital twin)
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'One Network Unified Management' (一网统管), launched 2019, is Shanghai's central city-operations platform. It fuses video feeds, IoT sensor data, maps and agency records into a real-time dashboard and city digital twin used to coordinate transport, infrastructure and emergency response across the megacity. Suppliers include Huawei, SenseTime, Hikvision and Tencent.
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The strongest source behind this entry is an independent peer-reviewed or academic study. It grades who did the looking — not how well the project went. All four grades →Sources
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Four digital twins: who may open them — and what are they for?
The same label covers a sealed national security asset, a browser tab anyone can open, a bookable simulation lab and a live operations dashboard. Access is the axis that separates them — and it decides what each twin can honestly claim to do.
| Project | Since | Status | Outcome | Evidence | Run by | Cost | Who gets in |
|---|---|---|---|---|---|---|---|
| Virtual Singapore: National 3D City Model and Digital TwinSingapore, 🇸🇬 | 2014 | Completed | Scaled back | Official | National government, Private company | About S$73 million (~US$53 million), as reported by Reuters; the former NRF programme page is offline. | Sealed: rolled out to agencies behind 'internet separation'; the promised public access never launched. |
| Tokyo Digital TwinTokyo, 🇯🇵 | 2021 | Live | Ongoing | Official | City government | not public | Open to anyone: a free browser viewer, with ward point clouds released as open data in December 2024. |
| S-Map — Seoul 3D Digital Twin PlatformSeoul, 🇰🇷 | 2021 | Live | Ongoing | Official | City government | not public | The lab in between: agencies and companies run simulations on roughly 600,000 buildings through its Open Lab. |
| One Network Unified Management (city operations digital twin)Shanghai, 🇨🇳 | 2019 | Live | Ongoing | Peer-reviewed | City government | not public | The operations pole: a live twin coordinating transport and emergency response rather than planning studies. |
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📎 Cite this project
1001 Smart Cities (2026). “One Network Unified Management (city operations digital twin)” — Shanghai, China. The Smart City Atlas. https://1001smartcities.org/projects/shanghai-one-network-unified-management/ (last verified 2026-07-17). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.