Speed limit cameras are crucial for enforcing speed limits and ensuring road safety and are effective in monitoring and deterring speeding. In the UK, we use several types of speed cameras, including fixed speed, average speed, and mobile units. Fixed cameras, like Gatso and Truvelo, often use radar or sensors to detect speed, while average speed cameras (like SPECS) monitor a vehicle's speed over a set distance. When a vehicle exceeds the speed limit, the camera is triggered to capture its image, which includes details like the vehicle's number plate and the time of the offence. This data is then processed, and if a violation is confirmed, a Notice of Intended Prosecution (NIP) is sent to the registered keeper.