An Indian festival goes high-tech

I changed the title from "Eyes in the sky" to a more descriptive one.

Excerpt

The key tool in the ICCC’s arsenal is the crowd management application (CMA) system, which keeps an eye on crowd density across all 700 camera feeds. The system is taught how much ground area each CCTV camera covers, which then allows it to estimate, with 85% accuracy, the number of people in a space at any given time. If there are more than three people per square meter, the system issues a warning, and the ground police team is notified and instructed to stop, hold, or divert the crowd.