Motorists have been urged to slow down near schools after an analysis was carried out at a Maidenhead school.

The research which was described as “extremely concerning” took place on Bray Road near Oldfield Primary School over a two-week period during term time in January.

Analysis of vehicle speeds found that more than a fifth (21%) of drivers exceeded the 30mph speed limit.

Cars found speeding drove at an average of 34.1mph.

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Churchill Motor Insurance, which commissioned the experiment, warned that driving at that speed creates a stopping distance in dry conditions of 58.3 metres, compared with 46.7 metres at 30mph.

A spokesman for the insurance firm said: “The findings are extremely concerning given drivers are using roads where lots of young children will be crossing and it is often hard to see around parked cars.”

It added: “Driving over the speed limit, even by the slightest amount, can have a serious impact on braking distances.

“Young children don’t always have the best road safety awareness and may run out from between parked cars, so if a car was travelling above the speed limit when this happened, it may not be able to stop in time, leading to a tragic accident.”