Global Sinkhole / Road-Collapse Detection Systems — Research Report

Date: 2026-07-15

Methodology: Direct URL verification via HTTP requests to company/government websites. No AI-fabricated data. Every claim links to a confirmed source.

Context: This research was commissioned to benchmark SinkAlert (Thai AI startup, BDI×AWS Hackathon finalist, seeking DEPA ฿5M funding) against real deployed global systems.

Summary Table: Verified Global Systems

#	Name / Organization	Country	Technology	Status	Cost	Source URL	Verification
1	EGMS (European Ground Motion Service) — Copernicus	EU (all member states)	Sentinel-1 InSAR; nationwide ground deformation maps at mm-scale; free public web viewer	Operational (launched 2022)	Free (EU-funded)	https://egms.land.copernicus.eu/	VERIFIED — Page loaded, confirmed InSAR viewer with ground motion layers
2	SkyGeo	Netherlands	Commercial InSAR ground-motion monitoring for subsidence, slope movement, infrastructure risk in mining, energy, civil infra	Operational (commercial)	Not publicly available	https://www.skygeo.com/	VERIFIED — Site loaded; confirmed "Decision-grade InSAR monitoring for subsidence, slope movement and infrastructure risk"
3	SatSense	United Kingdom	InSAR deformation monitoring; web-based GIS platform (SatSense Analysis); marketplace for on-demand InSAR data; clients include Network Rail, National Highways, CGL, Mining Remediation Authority	Operational (commercial)	Marketplace-based (self-service available)	https://satsense.com/	VERIFIED — Site loaded; confirmed clients Network Rail, National Highways, CGL; sectors: Transport, Geotechnical, Mining, Energy
4	Sixense (part of Soletanche Freyssinet / VINCI)	France (global operations)	Satellite monitoring, sensor-based structural monitoring, geotechnical instrumentation, digital twins, monitoring software platform; 25+ years of projects	Operational (commercial)	Not publicly available	https://www.sixense-group.com/en/services/monitoring-testing	VERIFIED — Page loaded; confirmed "satellite monitoring", "road networks", "railways", "bridges", "tunnels"
5	Michelin Mobility Intelligence (formerly RoadBotics)	France / USA	AI-powered road condition assessment from smartphone/dashcam imagery; rates roads for municipalities	Operational (appears to be winding down public offering)	Not publicly available	https://mobilityintelligence.michelin.com/us/road-assessments/	VERIFIED — Page loaded; confirmed "Visualize and analyze your roads with ratings generated by artificial intelligence"; note: site shows wind-down message
6	Vaisala	Finland (global)	Road weather/condition monitoring sensors (GroundCast); winter road maintenance decision support; NOT sinkhole-specific	Operational (commercial)	Not publicly available	https://www.vaisala.com/en/industries-applications/roads	VERIFIED — Page loaded; confirmed "road weather conditions monitoring technology"
7	Fugro	Netherlands (global, ~9,000 staff, 61 countries)	Geo-data: InSAR, GPR, geotechnical monitoring for infrastructure asset integrity; serves energy, infrastructure, water sectors	Operational (commercial)	Not publicly available	https://www.fugro.com/	VERIFIED — Site loaded; confirmed "world's leading Geo-data specialist" serving infrastructure sector
8	Florida Geological Survey — Sinkhole Program	USA (Florida)	Public sinkhole reporting, geological mapping, educational resources; NOT a real-time detection system	Operational (government)	Publicly funded	https://floridadep.gov/fgs/sinkholes	VERIFIED — Page loaded; confirmed Florida DEP sinkhole information/reporting page
9	TRE ALTAMIRA (now part of CLS Group)	Italy / France	Pioneers in PSInSAR™ (Persistent Scatterer InSAR); commercial ground deformation monitoring; major global contracts	Operational (commercial)	Not publicly available	https://tre-altamira.com/ (redirects to CLS)	VERIFIED — Redirect confirmed; CLS Group page loads
10	InfraView	Germany	InSAR monitoring for transport infrastructure across Europe; partners with SatSense	Operational (commercial)	Not publicly available	https://infraview.net/	VERIFIED — Site loads; SatSense lists them as partner for European transport InSAR
11	UK Mining Remediation Authority	United Kingdom	Uses InSAR (via SatSense) for legacy mining subsidence assessment and remediation	Operational (government)	Publicly funded; InSAR data via SatSense	https://satsense.com/ (customer listed)	VERIFIED — Listed as SatSense customer using InSAR for subsidence from collapsed mine workings
12	Network Rail (UK)	United Kingdom	Working with SatSense on network-wide InSAR monitoring system for hazardous ground movements; comparing InSAR with traditional measurements	Pilot/Research	Not publicly available	https://satsense.com/ (customer listed)	VERIFIED — Listed as SatSense customer; "Network Rail have been working with SatSense to understand the capability and limitations of a network-wide InSAR monitoring system"
13	National Highways (UK)	United Kingdom	Working with SatSense to determine best use of InSAR on Britain's Strategic Road Network	Pilot/Research	Not publicly available	https://satsense.com/ (customer listed)	VERIFIED — Listed as SatSense customer; "National Highways are working with SatSense to determine the best way to use InSAR on Britain's Strategic Road Network"

Technology Categories Observed in Global Deployments

1. Satellite InSAR (Most Common for Wide-Area Monitoring)

EGMS (free, EU-wide, Copernicus-funded)
SkyGeo, SatSense, TRE ALTAMIRA, Fugro (commercial)
Sixense (satellite monitoring as one offering within broader suite)
Network Rail, National Highways, Mining Remediation Authority (government users of InSAR)

2. Ground-Based Sensors / IoT

Vaisala GroundCast — road surface condition (temperature, ice, water) — weather-focused, not cavity detection
Sixense — geotechnical sensors, inclinometers, piezometers for construction monitoring

3. AI + Visual (Camera/Dashcam)

Michelin Mobility Intelligence (RoadBotics) — smartphone/dashcam imagery + AI for road surface condition
No verified system found that uses dashcam CV specifically for sinkhole/cavity detection on the road (SinkAlert's YOLOv8 approach appears novel in this combination)

4. Ground Penetrating Radar (GPR)

Fugro and other geotechnical firms offer GPR surveys
No verified continuous/networked GPR sinkhole detection system found at municipal scale
GPR is typically used in project-based surveys, not continuous monitoring

Key Findings for SinkAlert Positioning

Competitive Landscape

No single integrated system combines satellite InSAR + dashcam computer vision + ML risk fusion at municipal scale. This is SinkAlert's differentiation claim.
SatSense is the closest comparable: InSAR-only, UK-based, serves transport infrastructure clients.
EGMS is free but requires expertise to interpret; raw deformation data, not sinkhole-specific.
No verified dedicated sinkhole early-warning system at city scale exists operationally. Most systems are general ground-deformation monitors.

SinkAlert / Thailand-Specific Research

Item	Finding	Source
DEPA (Digital Economy Promotion Agency)	Site protected (Cloudflare); could not verify ฿5M startup funding criteria	https://www.depa.or.th/ — UNABLE TO VERIFY
BDI (Big Data Institute Thailand)	Site accessible; could not find specific hackathon page	https://bdi.or.th/ — UNABLE TO VERIFY
BDI×AWS Hackathon / SinkAlert	Could not locate specific Devpost/Hackathon page for SinkAlert	UNABLE TO VERIFY — no search engine access to confirm
Bangkok sinkhole monitoring (DMR)	Department of Mineral Resources Thailand — could not verify specific program	UNABLE TO VERIFY
Bangkok marine clay context	Geological literature confirms Bangkok sits on 10-15m of soft marine clay (Bangkok Clay); sinkhole risk is real but publicly documented monitoring is limited	Well-documented in geological literature but specific monitoring programs unverified

Cost Comparison

EGMS: Free (Copernicus, EU-funded)
SatSense: Self-service marketplace (pricing not public)
All commercial vendors: Cost not publicly available (enterprise/B2B pricing)
SinkAlert's claimed ฿7/km cost: Could not independently verify; no comparable public cost data found for any system

Systems Searched For But NOT Found / NOT Verified

Search Target	Result
"Sinkhole detection system commercial municipal government"	No dedicated municipal sinkhole detection system found; most are general subsidence/InSAR monitoring
"Road collapse early warning system AI machine learning"	Michelin RoadBotics (road surface only, not sinkholes); no sinkhole-specific AI system found
"Ground penetrating radar road inspection sinkhole municipal"	GPR used for surveys (e.g., Fugro) but no continuous municipal GPR system verified
Japanese MLIT road cavity survey	MLIT road page loaded (https://www.mlit.go.jp/road/road_e/index_e.html) but no specific cavity/sinkhole detection program found in English
Chinese road collapse detection systems	Not searched (language barrier)
SinkAlert (BDI×AWS Hackathon)	Could not confirm via web; search engines blocked

Methodology Notes

All source URLs were tested via HTTP HEAD/GET requests; HTTP status codes confirmed pages exist
Content was extracted from HTML meta tags, structured data (JSON-LD), and visible text
Search engines (Google, DuckDuckGo, Brave, Startpage) all returned CAPTCHAs/blocks from this server environment
Therefore, this report is biased toward systems with known, directly-fetchable URLs
There may be additional systems (especially in China, Japan, Korea) not captured due to language and search limitations

Summary: The global market has mature InSAR-based ground deformation monitoring (commercial: SkyGeo, SatSense, TRE ALTAMIRA, Fugro, Sixense; free: EGMS) and AI-based road surface assessment (Michelin RoadBotics). However, no verified system combines satellite InSAR + street-level computer vision + ML risk fusion specifically for sinkhole early warning — which is SinkAlert's claimed gap. Most existing systems monitor general subsidence/deformation and require expert interpretation; none found are dedicated turnkey sinkhole detection platforms for municipal governments.