Nineteen people were killed and 25 injured in a stampede at Kolkata’s Chorbagan Durga Puja pandal on Saturday.

Heavy rain reportedly drove visitors toward the entrance, causing a crush. The tragedy raises a question about crowd technology.

Safety experts say the tools exist but are rarely used as the early warning systems they were designed to be.

India has many CCTV cameras, but cameras that only record events do little to prevent a stampede.

AI can analyse live video to estimate crowd density, track movement and flag sudden surges.

Staff can then act early by opening exits, redirecting flow or pausing entry.

India’s disaster management guidance treats about six people per square metre as a danger point.

The software works with most existing CCTV cameras, so venues usually need no new hardware.

Read the full article for more details on crowd monitoring technology.