Major intersections in the city will soon have underground magnetic sensors linked to overhead surveillance cameras to help the police simultaneously monitor multiple traffic lanes for red-light violations and speed offences.

The Communications Wing of the Keltron has set up, on a trial basis, one of the first such systems at the busy Pattom junction.

The sensors, which are buried 2.54 cm below the road surface, uses inductive loop technology to accurately sense red light and legal speed limit violations by recognising the magnetic interference caused by vehicles passing over them. High resolution night vision-equipped cameras linked to sensors will record the violations for evidence purposes.

They will capture the rear number plate of the vehicle to help the police accurately identify and prosecute offenders.

30 junctions

The gadgets integrate vehicle speed detection radars, night-vision enabled cameras with zoom-in capability, powerful flash lights and magnetic sensors in a single device.

The gadgets will be installed at 30 junctions, mainly those near busy pedestrian crossings.

The system relays the images and information to the police control room through a secure cable network in real time.

The digital evidence will be preserved in a police server, enabling enforcers to slap traffic fines on errant motorists and prosecute them in courts.

The tamper proof devices work round-the-clock and in all weather and light conditions. They can be reconfigured to detect violation of traffic-lane discipline, parking laws, use of mobile phones while driving, stopping vehicles on zebra lines, one-way violations and wrong side movement of vehicles.

To be displayed

The video output from the devices will be displayed continuously at the Police Control Room.

The police, using conventional methods, detect at least 60 cases of over speeding and traffic signal violation, daily.

However, this was just a fraction of the actual number of such violations.

The system could also be used to net chain snatchers on motorbikes.

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