More than 53,000 incidents of drivers ignoring lane closure signs on smart motorways have been recorded since 2021, according to research by IAM RoadSmart.

The organization stated that these findings highlight the need for the government to seriously reconsider the future of smart motorways.
Importance of Red X Signs
Following Red X signs is crucial for safety, especially on smart motorways where the hard shoulder has been converted into a live traffic lane.
National Highways activates these signals when a stopped vehicle is detected in a live lane to prevent collisions and protect emergency services.

Penalties for Ignoring Red X Signs
- Fine of up to £100
- Three penalty points on the license
- More severe cases may lead to court action
Recorded Incidents
- 2021: 4,393 cases
- 2022: 20,773 cases
- 2023: 28,231 cases
Expert Opinion
Nicholas Lyes from IAM RoadSmart stated that ignoring Red X signs is dangerous and significantly increases the risk of serious accidents.
He also mentioned that many drivers already have concerns about the safety of smart motorways, and these figures are unlikely to reassure them.
How Speed Cameras Work
Speed cameras use radar or road markings to monitor vehicle speed. Modern systems are digital and can track average speeds over long distances.
- Vehicle speed
- Time and location of the offence
- Vehicle registration
- Speed limit
- Images of the driver (in some cases)
Speed Limit Myths
A common belief is that the “10% + 2 mph” rule allows drivers to exceed speed limits safely, but this is not a legal rule.
Legally, drivers can be fined for exceeding the speed limit by even 1 mph.

Common Myths About Speed Cameras
- Do speed vans need to be visible? No, there is no legal requirement for visibility.
- Is flashing headlights to warn others legal? It may be considered an offence as it could obstruct police duties.
What Happens if You Are Caught Speeding?
The minimum penalty is a £100 fine. In some cases, drivers may be offered a speed awareness course instead of penalty points.
This option is typically available if the driver has not exceeded the speed limit by more than 10% plus 9 mph and has not attended a course in the past three years.
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