The 2/3" format lenses are 35mm and 50mm models that are being used predominantly from USB board cameras.
Over 50 of the lenses have been deployed. The camera/lens assemblies are mounted on traffic light poles at major roads leading in and out of the city with images being recorded digitally for review by Council traffic managers.
The video equipment gives City traffic analysts information about journey times and congestion spots. There is no chargeable aspect to the monitoring [as with the London Congestion Charge] but the footage is allowing the Council to make informed decisions about peak traffic flow times and locations where traffic calming measures might be beneficial.
The exercise does not involve live monitoring; footage is analysed retrospectively and an overview of traffic flows in and out of the city is compiled.