How smart cities use AI video surveillance for traffic, public safety, crowd management and investigations, and how to deploy it with privacy built in.
Smart cities now run tens of thousands of cameras across junctions, transit hubs, public spaces and critical infrastructure. The same feeds serve many departments at once: traffic, police, emergency services and urban planning.
The challenge is not capturing video. It is making it useful. A city with 10,000 cameras records 240,000 hours of video every day. Without AI, almost all of it sits unwatched until someone searches it after an incident.
AI changes that. It watches every camera, decides what needs attention and acts, so control rooms respond while events are still unfolding.
AI traffic analytics counts vehicles, measures queues and wait times at junctions, spots wrong way driving, speeding and U-turns, and flags parking violations and blocked keep clear zones. That live data helps traffic teams manage signals and congestion.
Number plate recognition supports tolling, parking enforcement and stolen vehicle alerts through allow, block, watch and VIP lists. Visylix also builds exact plate journeys with travel times between cameras, so investigators can see where a vehicle went and when.
Crowd detection lets authorities act before a gathering becomes dangerous. Visylix measures crowd density per square metre, alerts when a crowd is forming and detects stampede behaviour, against thresholds the city sets, so teams can redirect people or send staff before a crush develops.
When an incident happens, investigators need to follow movement fast. Plate journeys in Visylix are exact. Person journeys are based on appearance and return likely sightings across cameras for an operator to review, so teams trace movement across the network without trawling through every camera by hand. Weapon detection, fire and smoke, abandoned objects and audio events such as gunshots and breaking glass add further layers of protection.
City deployments need a platform built for large estates, access control that lets many agencies share cameras safely, ONVIF support so any camera brand can join, and resilience when networks are disrupted.
Visylix meets each need. Its native streaming engine is built for large camera estates, with each site able to run its own instance. Sudarshan rules turn detections into alarms, SIEM and PSIM events and talkdown through camera speakers, and the Radha AI copilot lets operators investigate in plain words. Command centres get video walls up to 6×6, geographic maps with live alarm badges and an alarm and incident console. Everything runs on infrastructure the city controls.
Privacy must be designed in. Good practice includes purpose limitation, data minimisation, automatic retention limits and clear public policies. Visylix supports this with redaction of faces, plates and custom zones on export, consent and erasure for face enrolment, and a tamper evident audit trail.
Capacity depends on hardware, resolution and the analytics you run. Visylix is built for large camera estates on standard servers and grows by adding servers, with sites able to run their own instances. Starter and Pro include unlimited cameras on the VMS licence, so cities are never held back by per recorder channel limits.
The most valuable are number plate recognition for traffic, tolling and investigations, crowd detection with density per square metre for transit hubs and events, and journeys across cameras for investigations. Plate journeys are exact. Person journeys are based on appearance and returned for an operator to review. Speed estimation, parking occupancy, weapon detection and fire and smoke round out the set, all within Visylix's 22 AI analytics.
Good practice includes purpose limitation, data minimisation, automatic retention limits and redaction when footage is shared. Under the EU AI Act, real time remote biometric identification in publicly accessible spaces for law enforcement is prohibited, with narrow exceptions, and other biometric identification is high risk, so cities should configure face recognition carefully and document every use.
Yes. Visylix offers 46 permissions across 4 roles, so traffic, police, transit and planning teams each see only the cameras and data that fit their mandate. A tamper evident audit trail records who viewed and exported what, which makes inter agency data sharing agreements easy to evidence.