Road surveillance

<strong>Operated by:</strong> Highways Agency <strong>What it does:</strong> A new speed camera that enforces variable limits shown on gantry signs as part of a Managed Motorway. This is the official name for sections where the hard s

<strong>Operated by:</strong> Highways Agency <strong>What it does:</strong> In addition to monitoring traffic flow, images are used for checking callers using emergency phones, and the police have access for law enforcement. <strong

<strong>Operated by:</strong> Highways Agency <strong>What it does:</strong> Nearly 500 of these Automatic Number Plate Recognition cameras, identified by their green casing, work in pairs to monitor journey times. The information is

<strong>Operated by:</strong> Highways Agency <strong>What it does:</strong> Measures the average speed of vehicles. The cameras are commonly used to monitor temporary speed limits through roadworks. <strong>How it works:</strong> Th

<strong>Operated by:</strong> Highways Agency <strong>What it does:</strong> Measures traffic volume and speed, automatically changing the speed limit on overhead Variable Message signs, when it detects a certain level of ‘vehicles pe

<strong>Operated by:</strong> Highways Agency <strong>What they do:</strong> HATOs cover the motorway network, but they are not law enforcers. Their main role is to reduce congestion by dealing with minor incidents, remove debris and

<strong>Operated by:</strong> Safety Camera Partnerships <strong>What it does:</strong> Detects and records images of speeding vehicles. As with all speed cameras, Gatsos are run by Safety Camera Partnerships (SCP). <strong>How it wo

<strong>Operated by:</strong> Safety Camera Partnerships <strong>What it does:</strong> Catches speeding drivers and can detect red-light jumpers, too. The camera transmits images and data in real time via 3G to a control room. <stro

<strong>Operated by:</strong> Trafficmaster <strong>What it does:</strong> Driving services company Trafficmaster’s grey boxes calculate speed and delay data. They report to a monitoring station every four minutes on average speed and

<strong>Operated by:</strong> Trafficmaster <strong>What it does:</strong> Trafficmaster uses ANPR cameras, too. It has 3,500 cameras on blue poles which help to calculate journey times. The data is used to update SmartNav navigation

<strong>Operated by:</strong> Transport for London <strong>What it does:</strong> Enforces London’s congestion and emissions charges with a network of cameras across the zone. <strong>How it works:</strong> Fixed ANPR cameras take im

<strong>Operated by:</strong> Police forces, Safety Camera Partnerships <strong>What it does:</strong> Catches speeding drivers. Often seen on road bridges, laybys or grass verges, where enforcement vans can park without holding up th

<strong>Operated by:</strong> Local forces <strong>What they do:</strong> Patrol cars catch criminals by using ANPR and DVLA database checks combined with intuition and police intelligence. Personnel cuts have increased reliance on ca