Do you get 10% on average speed cameras?

The 10% Myth: Understanding Average Speed Cameras and Tolerances

The persistent rumour that average speed cameras operate with a 10% tolerance is a common misconception. While some drivers believe they have a safety net of 10% above the posted speed limit before facing a penalty, this is simply not true. There’s no official, universally applied tolerance for average speed cameras, or indeed, most fixed speed cameras.

The reality is far more nuanced. While the exact enforcement methods vary slightly depending on location and the specific technology used, the core principle remains consistent: average speed cameras calculate your average speed over a defined distance and compare it directly to the posted limit. There’s no built-in buffer zone of 10% or any other percentage.

The belief in a 10% tolerance likely stems from a misunderstanding of how some older, less sophisticated speed guns might have operated. These devices often had a margin of error factored into their readings, sometimes amounting to a few miles per hour. However, modern average speed camera systems are far more accurate and precise. They calculate your average speed based on numerous recordings across a stretch of road, minimizing the impact of momentary speed fluctuations. This precision significantly reduces the possibility of a false positive due to minor inaccuracies in measurement.

Furthermore, the legal framework surrounding speeding offences rarely involves a blanket tolerance. Instead, the prosecution focuses on whether the driver exceeded the posted speed limit, irrespective of minor variations in measurement. Any potential discrepancies would usually be considered during the legal process, if a challenge to the evidence were to be mounted, rather than being accounted for automatically by the camera system itself.

Therefore, driving even slightly above the speed limit when passing through an average speed camera zone puts you at risk of a penalty. The “10% rule” is a dangerous myth that could lead drivers into a false sense of security. The best approach is always to adhere to the posted speed limit and drive safely, avoiding any unnecessary risks. Remember, the goal is not to push the boundaries of legality, but to contribute to safer roads for everyone.