Deeside road named among UK’s worst 20mph speeding cases
A driver caught doing 89mph on a 20mph stretch of the B5129 in Deeside features in new Freedom of Information data analysed by the RAC.
The RAC submitted requests to all 45 UK police forces and received data from 34 of them, covering the 2025 calendar year.
Across those forces, 32,548 drivers were caught doing 30mph or more on 20mph roads, and 271,341 were caught doing 40mph or more on 30mph roads.
The Deeside case was one of the examples the RAC highlighted from among those figures.
It isn’t the first time the same stretch has come up.
North Wales Police released its own Freedom of Information figures in September last year, showing the B5129 at Pentre recorded the highest speed of any 20mph road across the force’s Wrexham and Flintshire area, in both the year to September 2024 and the year to September 2025.
That earlier data also showed the A5104 at Pontybodkin had the sharpest change of any road on the list, its highest catch rising from 56mph to 85mph in a year.
Department for Transport figures for 2024 show speed was a factor in 58 per cent of fatal collisions in Great Britain.
Drivers or riders exceeding the limit were behind a fifth of them, and 185 people died where speeding played a part.
RAC senior policy officer Rod Dennis said:
“Our analysis shows some of the frankly chilling speeds some people are prepared to drive at, and these are just the cases the police are aware of. Such roads will almost certainly be well used by pedestrians and cyclists, so it doesn’t bear thinking about what travelling at such high speeds could have led to.”
National Police Chiefs’ Council lead for roads policing, Chief Constable Jo Shiner, said:
“The fact that a majority of drivers now believe there is a culture where speeding is acceptable reflects a deeply embedded issue in driver behaviour. We must reset expectations and make it clear that safe, lawful driving is a shared responsibility.”
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