The number of road crashes in Edinburgh has decreased by a third since a 20mph speed limit was introduced in 2016, according to new research. A research team from the University of St Andrews as well as universities of Edinburgh, East Anglia and Cambridge investigated the effect of the policy on a city-wide scale. The research has provided compelling evidence that the introduction of the 20mph speed limit led to a further decline in the rates of road traffic collisions (RTCs). It found that around the time of the introduction of the 20mph policy in Edinburgh, the trend of the decreasing number of crashes transitioned from “slow-decreasing” to “fast- decreasing”.
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Fewer accidents in capital since 20mph limit
The number of road traffic collisions (RTCs) in Edinburgh has decreased since a 20mph speed limit was introduced in 2016, according to new research led by the University of St Andrews.
Dr Valentin Popov of the School of Mathematics and Statistics at the University of St Andrews with collaborators from the universities of Edinburgh, East Anglia and Cambridge introduced a cutting-edge methodology to identify shifts in the trend of RTCs and associate them with possible causes.
The research team investigated the effect of the policy on a city-wide scale, implicitly including spill-over effects.
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