Types of Traffic Cameras in the UK
When most people think about traffic cameras, they usually picture speed cameras. However, there are several types of traffic enforcement cameras in the UK, each designed to monitor specific aspects of road use. From live traffic cameras to motorway speed cameras, understanding the differences can help drivers stay informed and ensure compliance with road laws.
Types of Speed Cameras
Average Speed Cameras
How do average speed cameras work?
Average speed cameras are a familiar sight on motorways and dual carriageways. They work by using Automatic Number Plate Recognition (ANPR) technology to record your vehicle’s registration at two or more points. The system calculates your average speed between these points to determine if you’ve exceeded the limit.
Do average speed cameras flash?
Unlike traditional speed cameras, average speed cameras don’t flash. Instead, they work continuously to monitor vehicles, even in the dark, using infrared technology.
Speed Camera Tolerance
Most speed cameras in the UK are set to allow a small tolerance above the speed limit, typically 10% plus 2 mph. For example, in a 30 mph zone, you might not trigger the camera unless you’re driving at 35 mph or above. However, this tolerance isn’t guaranteed, so it’s always safer to stay within the limit.
Variable Speed Cameras
How do variable speed cameras work?
Variable speed cameras are often found on motorways, such as the M25. They monitor compliance with changing speed limits displayed on overhead gantries, helping to manage traffic flow and reduce congestion.
Do variable speed cameras flash?
Yes, variable speed cameras can flash, but only if a driver exceeds the posted speed limit. These cameras are highly effective at enforcing speed limits during peak times or adverse weather conditions.
Mobile Speed Cameras
How do mobile speed cameras work?
Mobile speed cameras are operated by enforcement officers and can be deployed in vans, handheld devices, or tripods. They use radar or laser technology to measure the speed of passing vehicles.
Do mobile speed cameras flash?
Mobile speed cameras don’t always flash. Some devices are equipped with infrared technology, which allows them to capture images discreetly.
Other Types of Traffic Cameras
Traffic Light Cameras (Red Light Cameras)
How do traffic light cameras work?
Traffic light cameras are designed to catch drivers who run red lights. They are triggered when a vehicle crosses the stop line after the light has turned red, capturing an image of the offending vehicle.
Do all traffic lights have cameras?
Not all traffic lights are equipped with cameras. However, they are commonly found at busy intersections or accident-prone areas. Cities like Doncaster, Sheffield, Hull, and Bradford frequently use traffic light cameras for traffic enforcement.
Bus Lane Cameras
How do bus lane cameras work?
Bus lane cameras monitor vehicles to ensure that only permitted vehicles—buses, taxis, and bicycles—use the lane during restricted hours. These cameras use ANPR technology to identify and penalise unauthorised vehicles.
Do all bus lanes have cameras?
Not every bus lane has cameras, but they are prevalent in urban areas such as Doncaster, Sheffield, Hull, and Bradford. Signs typically indicate whether a bus lane is monitored.
ANPR Cameras
What does ANPR stand for?
ANPR stands for Automatic Number Plate Recognition.
What do ANPR cameras look like?
ANPR cameras are often mounted on poles, gantries, or police vehicles. They’re small and rectangular, usually black or grey, with a distinctive lens.
Do ANPR cameras check MOT and insurance?
Yes, ANPR cameras can check if a vehicle has a valid MOT certificate and insurance. If your vehicle is flagged for non-compliance, you may face fines or prosecution.
What happens if you get caught by an ANPR camera?
If an ANPR camera identifies an issue with your vehicle, such as no insurance or unpaid road tax, you could receive a penalty notice, and your vehicle may be impounded.
Speed Cameras in the UK
Gatso Speed Cameras
Gatso cameras are rear-facing devices that use radar technology to measure speed. First introduced in 1991, they remain one of the most widely used speed cameras in the UK.
Truvelo Speed Cameras
Truvelo cameras take front-facing photographs of speeding vehicles. These cameras are particularly effective as they can capture the driver’s face, helping to identify offenders.
SPECs Speed Cameras
SPECs cameras use video footage and ANPR to calculate average speed over a set distance. They are often used in construction zones and on motorways.
HADECS Speed Cameras
Highways Agency Digital Enforcement Camera System (HADECS) cameras, also known as redflex cameras, are a newer type of speed camera. They are often installed on smart motorways to enforce variable speed limits.
New Speed Camera Types
Emerging technologies, such as anti-braking cameras, are being considered to catch drivers who brake suddenly to avoid detection. These new speed cameras aim to enhance traffic enforcement and improve road safety further.
From Gatso and Truvelo to ANPR and traffic light cameras, the variety of traffic cameras in the UK demonstrates the importance of safe driving. As new speed cameras become even more advanced, staying within the limits and adhering to road laws has never been more crucial. Whether you’re navigating motorways or city streets, keeping an eye out for speed camera signs and driving responsibly will help ensure a smoother, safer journey.