🌡️ Inspiration
Extreme heat is becoming a major challenge for cities, especially when large crowds travel between transit stations and stadiums. During FIFA 2026, thousands of fans may walk through exposed urban corridors where heat, pavement, and limited shade can increase thermal risk.
We wanted to build a tool that helps cities answer a practical question:
Where is heat exposure highest, and what can we do about it before people arrive?
This inspired ThermoShield 2026, a decision-support platform for designing heat-resilient fan transit corridors.
💡 What We Built
ThermoShield combines real environmental data, spatial analysis, transit geography, intervention modeling, and AI-powered recommendations into one interactive web application.
For our primary Houston demonstration, we processed Rice datasets and analyzed a 400-meter catchment around the METRO Red Line corridor to NRG Stadium.
Our data pipeline identified:
610 UHI measurement points within the catchment Mean UHI of 8.43 / 11 1,889 POI records within the catchment 1.09 parking POIs/km 14,752 m²/km parking-area density
We normalize the measured UHI using the Rice 1–11 scale:
$$ \text{ThermoShield Index} = \frac{\text{UHI}-1}{11-1}\times100 $$
For Houston:
$$ \frac{8.4262-1}{10}\times100 \approx74.3 $$
This produces our Provisional ThermoShield Index, clearly distinguished from a scientifically validated PHEI.
🛠️ How We Built It
The application uses:
React + TypeScript for the interactive frontend Node.js for the backend and data-processing pipeline CSV/GZIP streaming to process large Rice datasets without loading millions of rows into browser memory Spatial analysis using a 400-meter transit catchment GeoJSON and interactive maps for transit corridors and station-level visualization Environmental metrics derived from the Rice datasets A deterministic intervention simulation engine for comparing potential cooling strategies Google Gemini as an AI resilience advisor that converts analyzed results into structured recommendations
The intervention model allows users to explore strategies such as:
Modular shade canopies Cool pavement Misting and hydration hubs Mobile green infrastructure
The resulting temperature and exposure changes are explicitly presented as modeled scenarios, not measured outcomes.
📚 What We Learned
One of our biggest lessons was that using real data is not enough — the methodology must also be defensible.
During development, we discovered that an earlier asphalt-ratio variable was not directly supported by the Rice datasets. Instead of presenting an invented value as empirical evidence, we removed it and introduced a clearly labeled Parking & Infrastructure Density proxy.
We also learned how to:
Process large geospatial datasets efficiently Perform spatial filtering around transit corridors Separate empirical measurements from modeled assumptions Build decision-support visualizations Design AI systems that operate on analyzed data rather than inventing environmental measurements 🚧 Challenges
The biggest technical challenges were the size and structure of the datasets, spatial processing, and maintaining data integrity.
The Rice datasets contained many compressed partitions, so we developed a streaming ingestion approach that filters for Houston while processing the files rather than loading everything into memory.
Another challenge was ensuring that our application did not overstate what the data could prove. We therefore separated the system into:
Rice empirical data → Spatial analysis → Provisional index → Intervention modeling → AI recommendations
This makes it clear to decision-makers which information is measured and which information is modeled.
🌎 Beyond FIFA 2026
Although ThermoShield is designed around FIFA 2026 fan mobility, the underlying concept extends far beyond a single tournament.
The same workflow can support:
City heat-resilience planning Transit corridor improvements Outdoor worker protection Large public events Stadium districts Emergency heat response Long-term urban infrastructure planning
Our goal is to turn environmental data into actionable decisions that make cities safer, cooler, and more resilient for everyone — during FIFA 2026 and long after the tournament ends.
Built With
- geojson
- gis
- javascript
- maplibre
- node.js
- react
- sustainability
- typescript
- vite
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