1 in 10 Drivers Caught Speeding 100m After Speed Cameras

Analysis of anonymised telematics data from thousands of UK vehicles has revealed that 10% of drivers exceed the speed limit within 100 metres of passing a fixed speed camera. This “sawtooth” driving pattern — braking harshly before the camera, then accelerating aggressively — not only increases collision risk but also reduces fuel efficiency and increases vehicle wear.

The 100-metre speeding phenomenon

Telematics data collected from fleet vehicles and private cars shows that speed camera zones are often the safest points on a road — for just a few seconds. Within 100 metres after passing the camera, average speeds spike by 12-15%, with 1 in 10 drivers exceeding the limit by more than 5mph. This behaviour is most pronounced on A-roads and motorways where speed cameras are fixed and well-signposted. In contrast, average speed zones (e.g., SPECS systems) show much lower rates of post-camera acceleration, as drivers cannot simply “brake and go”.

The implications for road safety are significant. Rear-end collisions, pedestrian risks in urban areas, and loss of control on bends all increase when drivers accelerate immediately after a perceived enforcement point. For fleet operators, this pattern also translates into higher fuel costs (aggressive acceleration burns up to 30% more fuel), increased brake wear, and elevated insurance risk profiles.

Why drivers risk it after cameras

The psychology is simple: drivers treat speed cameras as the only enforcement mechanism. Once they believe they are “safe” from prosecution, they revert to speeding. This suggests that many drivers do not understand the real risks of speeding — or believe that moderate speeding is acceptable when not monitored. The lack of visible enforcement on most roads creates a perception that speeding is the norm, not the exception.

Younger drivers (under 25) and drivers of high-performance vehicles are over-represented in the 1-in-10 statistic. Fleet drivers under pressure to meet delivery schedules also show elevated post-camera acceleration rates. Addressing this requires a combination of driver training, in-cab feedback systems, and telematics monitoring that scores driving smoothness, not just peak speeds.

LockCar solutions for driver behaviour monitoring

Fleet choice

LockCar ONE — £199

24/7 dashcam + driver feedback

Best-selling dashcam with GPS logging and G-sensor event recording. Review driving events including harsh braking and acceleration — ideal for identifying post-camera speeding patterns.

LockCar One Plus — £259

4G remote + GPS + live camera

For fleet managers: real-time speed alerts, geofencing, and live camera view. Monitor driver behaviour remotely and receive instant notifications for harsh acceleration events.

LockCar Duo RH Plus — £359

4G dual-camera (front + driver)

Front and driver-facing cameras. Perfect for fleet operators who need to identify driver behaviour behind post-camera speeding. Includes GPS tracking and real-time alerts.

How fleet managers can reduce post-camera speeding

For UK fleet operators, the 1-in-10 statistic represents a significant liability. Drivers who speed after cameras are at higher risk of collisions, fines, and licence points. Telematics systems that score driving smoothness — not just peak speed — are more effective than simple speed alerts. The LockCar Fleet Monitoring Platform (LFM) provides a central dashboard where managers can review driving events, including harsh acceleration following braking events. This data can be used for targeted driver coaching, reducing both risk and fuel costs.