I Built a Real-Time Crowd Orchestration Engine for Stadium Events (PromptWar 2026)

The Problem: When 50,000 Fans Hit the Gates at Once

Stadium bottlenecks aren't just annoying—they're dangerous. Static gate assignments fail when crowd dynamics shift. For PromptWar 2026, I wanted to solve this with code that actually thinks.

The Build: PromptWar Crowd Orchestration

Instead of rigid assignments, I built a 4-tier Human-Sensor Network that treats crowd management as a living system:

Technical Architecture

ElasticEntry Algorithm
The core routing engine calculates real-time "Friction Scores" for every entry point based on:

• Surge density (people/minute)
• Fan transit velocity
• Historical congestion patterns

Stack

• Backend: FastAPI + WebSockets for sub-second perimeter updates
• AI Layer: Gemini for predictive bottleneck detection (identifies trouble 10-15 min before it happens)
• Infra: Google Cloud Run—scales to zero, bursts to thousands

Live Demo

🔗 Try it on mobile

📂 GitHub repo

What I Learned

Combining real-time WebSocket state management with Gemini's predictive calls taught me where AI adds value vs. where deterministic logic wins. The sweet spot: AI for forecasting, traditional algorithms for immediate routing decisions.

Built for #PromptWar2026 with #GoogleCloud. Feedback welcome—how would you handle the load balancing differently?