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National Highways variable speed camera anomaly

18 Dec 2025

National Highways has confirmed an anomaly has been identified in the way some variable speed cameras interact with signs on some A roads and motorways.   

This has resulted in a very small number of people incorrectly facing enforcement action for speeding.  

The anomaly has meant there was at times a slight delay between cameras and variable speed signs, leading to some drivers being incorrectly detected as speeding after the limit had changed.       

 

As a result, National Highways have identified approximately 2,650 total erroneous camera activations on impacted roads since 2021, which is the equivalent of fewer than 2 a day.  

Anybody affected will be contacted directly by the relevant police force. They will be reimbursed and have points removed from their licence where relevant.    

If you think you have been affected by this please wait to be contacted directly. You do not have to take any action at this stage.  

Further information:

Fix being rolled out after variable speed camera anomaly - National Highways