Drone-Based 3D Digital Twin
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.
11 sourced claims on this page, none individually verified yet — turn on “Sources in the text” to see each one.
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Drone imagery and AI became a 3D twin of Cauayan. After Typhoon Ulysses, it flagged 7,724 families for evacuation and put infrastructure damage at 550 million pesos.
what does this mean?
The strongest source is press reporting; no primary evaluation was located. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 1 more in Cauayan City · 🪞 Digital twin guide · 📡 Data & IoT projects
Partnering with geospatial startup Graffiquo as part of the UN's ASEAN Smart Cities Network programme, Cauayan built a drone-based 3D digital twin of the city - the mayor calls it the first-ever digital twin in the Philippines. After Typhoon Ulysses flooded the city in November 2020, its AI-based damage assessment estimated 22 million pesos (US$0.46 million) worth of crops destroyed and 550 million pesos (US$11.5 million) in infrastructure damage, and flagged 7,724 families needing evacuation.
📊 Impact
GovInsider: the digital-twin damage assessment after Typhoon Ulysses estimated 22 million pesos (US$0.46 million) of crops destroyed and 550 million pesos (US$11.5 million) in infrastructure damage, and identified 7,724 families that needed to be evacuated. Frontier Enterprise, reporting the same flood from an AWS summit panel in May 2021, puts the damage at nearly PHP 600 million (US$12.5 million) and the families at over 7,000. Every figure is the city's own or its vendor's; no national agency has published a check of them.
🎓 Lesson
The gain was administrative, not analytical. Cauayan owes national agencies a detailed damage report after every calamity, and the mayor says that used to take months because inspection officers met blocked roads or were stuck in their own tragedy-struck homes: Graffiquo played a vital role in having our assessment being in the air, rather than on the ground. What the twin bought was a report the city could file in an instant, not a better estimate - and the two published accounts of the same flood already differ, at 36,844 relief packs in one telling and 36,824 in the other.
Sources
Show your work What this page rests on and what it can’t tell you · all 11 claims with their sources · the forensic record
Evidence Passport · public beta 11 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 11
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-61038b3e5844fb2f
descriptive
as part of the UN's ASEAN Smart Cities Network programme
Sources carrying this claim
clm-dace6f465fa420b7
descriptive
the mayor calls it the first-ever digital twin in the Philippines
Sources carrying this claim
clm-b11b959747129e3a
quantitative
22 million pesos (US$0.46 million) worth of crops destroyed
Sources carrying this claim
clm-aff78fdf44913c34
quantitative
550 million pesos (US$11.5 million) in infrastructure damage
Sources carrying this claim
clm-9f54f412ddc9d574
quantitative
flagged 7,724 families needing evacuation
Sources carrying this claim
clm-89928b487b275fcc
quantitative
estimated 22 million pesos (US$0.46 million) of crops destroyed and 550 million pesos (US$11.5 million) in infrastructure damage, and identified 7,724 families that needed to be evacuated
Sources carrying this claim
clm-c1506f527397913b
quantitative
Frontier Enterprise, reporting the same flood from an AWS summit panel in May 2021, puts the damage at nearly PHP 600 million (US$12.5 million) and the families at over 7,000
Sources carrying this claim
clm-a0aa2c3380312b7a
descriptive
Every figure is the city's own or its vendor's; no national agency has published a check of them
Sources carrying this claim
clm-4f8805292966d55e
descriptive
used to take months because inspection officers met blocked roads or were stuck in their own tragedy-struck homes
Sources carrying this claim
clm-21db061ba43cb058
descriptive
Graffiquo played a vital role in having our assessment being in the air, rather than on the ground
Sources carrying this claim
clm-ba7c129ba439bf65
quantitative
the two published accounts of the same flood already differ, at 36,844 relief packs in one telling and 36,824 in the other
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:e08c077847768c954bc3e328fa08aadf253ef0c13278834080d4d271fcf34c91
- 11
- of 11 claims mapped
- 3
- source dossiers
- 1
- publication dates recorded
- 0
- archives linked
- 0
- exact locators
- 0
- content captures hashed
Governance facts carried by the record
- Operator
- City Government of Cauayan, with geospatial firm Graffiquo (UN ASEAN Smart Cities Network programme)
- Actor types
- city-government, private
- Funding model
- mixed
- Funding description
- Not recorded
- Cost
- Not recorded
- Ownership
- Not recorded
- Decision rights
- Not recorded
- Exit conditions
- Not recorded
3 source dossiers
GovInsider Asia (press)
- Stable source ID
src-141fda4664eb5ea5- Publisher
- Name not classified · govinsider.asia
- Type / language
- web-page · language not classified
- Published
- Not recorded
- 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
Interview with Mayor Bernard Faustino Dy and Graffiquo CEO Goh Seok Mei; primary source for the damage figures: "22 million Pesos' (US$ 0.46 million) worth of crops", "Infrastructure damages added up to 550 million Pesos (US$11.5 million)", "identified 7724 families that needed to be evacuated", "a total of 36,844 relief packs". The page carries no publication date; it dates the storm only as "last November".
Frontier Enterprise (press)
- Stable source ID
src-ca2597e7c5c82ed2- Publisher
- Name not classified · frontier-enterprise.com
- Type / language
- web-page · language not classified
- Published
- 2021-05-07
- 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 from an AWS Worldwide Public Sector Summit 2021 panel with the same two speakers. Carries the ASEAN attribution ("As part of the UN's Smart Cities Network ASEAN programme, Graffiquo was tasked to work with Cauayan City"), the mayor's superlative ("this is the first-ever digital twin in the Philippines"), "the worst flood of the past 40 years", "nearly PHP 600 million (US$12.5 million)", "over 7000 separate families" and "around 36,824 relief packs". Read as the same flood as the GovInsider account on the matching relief-pack count and family total; the article does not name the typhoon.
Philippine Institute for Development Studies (reference)
- Stable source ID
src-25e80fe9793266c9- Publisher
- Name not classified · pidswebs.pids.gov.ph
- Type / language
- pdf · language not classified
- Published
- Not recorded
- 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
Policy Note No. 2022-07, April 2022, on how far Philippine LGUs have come towards smart cities; Cauayan is one of six cities studied and its inventory lists "Digital twin - From drone photos to 3D map of the landscape; AI for damage estimation". Background context, not a source for this entry's figures.
- Claims linked
- Background source; no baseline claim points here
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.
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📎 Cite this project
1001 Smart Cities (2026). “Drone-Based 3D Digital Twin” — Cauayan City, Philippines. The Smart City Atlas. https://1001smartcities.org/projects/cauayan-digital-twin/ (last verified 2026-08-28). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.