See where a Crowd is building, how fast it is moving, and which Exits are filling, Zone by Zone, before it becomes a Problem on the ground. RootBlockLabs counts People on your existing Cameras and alerts your Control Room when a Zone passes Limits your Safety Team sets. Analysis runs on-site.
Tell us about the Site. We reply within 2 Business Days with a Scope and a short Plan.
Enter your Crowd Size, Occupied Area, and Available Exit Width to estimate Crowd Density and Clearance Time. Adjust your Thresholds to match your Planning Criteria.
Enter the three Values below to calculate your Results.
Get alerted when Density reaches this Level.
Set the Density at which your Plan calls for Action.
Enter your Crowd Details to preview how People are distributed across a 2 m × 2 m Area.
Density Guide: under 2 People/m² is comfortable, 2–4 is busy, 4–5 is dense, and 5 or more is critical. These are indicative Planning Bands, not universal Safety Limits. Clearance Estimates assume 1.3 People per second per metre of Clear Exit Width. Real Flow depends on the Venue, Crowd, Obstructions, and applicable Safety Requirements.
Your cameras already cover the gates, concourses and exits. The analysis turns that view into numbers and alerts for each zone.
| It Measures | What Your Control Room Gets |
|---|---|
| Density per Zone | A live map of how packed each area is, against limits you set |
| Flow Direction and Speed | Which way people move, and where flow is slowing or stopping |
| Choke Points and Queues | Gates, stairs and underpasses where people are backing up |
| Sudden Inflow | An alert when a zone fills much faster than normal |
| Zone Occupancy | A running count per gate, stand or concourse, with no manual clickers |
| Boundary Lines | An alert when people approach or cross a line you draw |
Alerts only help if someone knows what to do. We set three levels with your safety team, each tied to a response in your own plan.
Density is within limits. Everything is logged for the post-event review.
Density is rising or flow is slowing in a zone. The control room dashboard shows it, and a steward can be sent to look.
A limit has been passed. The control room and the zone lead are alerted with the camera and zone, and your response plan starts. A person decides what to do.
Choose a setting to see what we watch and where the pressure usually is.
Where Pressure Builds: Gates before kickoff, concourses at the interval, exits and approach roads at full time.
What We Watch: Queues at gates, density on concourses, exit flow and the car park.
What Your Team Gets: Zone density, queue build-up and exit-flow alerts, with a log for the post-match debrief.
We tell you the limits before you buy.
Crowd density counts people, not identities, and does not use face recognition. Analysis runs on-site and video does not leave your location. Retention and access are set with you, and we review local rules on video use before installation.
It depends on camera height, angle and how dense the crowd is. Counts are estimates, and we measure the error on your own footage during a pilot against a margin you approve.