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Slower driving speeds, increased levels of walking and cycling and minimal impact on journey times are among the key findings of a new report carried out in areas of Wales trialling the new default 20mph speed limit.

The interim monitoring report uses data gathered from the Welsh Government’s eight first phase areas and has been published today (Friday, March 17) – exactly six months before default limit is applied across Wales.

On September 17, the Welsh Government will introduce a default 20mph speed limit on restricted roads across Wales.

Restricted roads include where streetlights are placed no more than 200 yards apart and are usually located in residential and built-up areas with high pedestrian activity.

The move will see Wales become the first UK nation to introduce a lower speed limit following in the footsteps of European countries, such as  Spain,  where 30km/h (18.5mph) is already in place.

Evidence shows reducing the default speed limit from 30mph to 20mph, will see a number of benefits including a reduction in road collisions and serious injury, more people walking and cycling and improvements to health and wellbeing.

The report found that, on average, motorists are already driving slower in the first phase areas with an average speed reduction of 3mph recorded across all eight communities. Substantial behaviour change has been observed in St Brides Major and St Dogmaels (two of the first phase areas to be introduced) where the number of people driving at or below 24mph has increased from 23% to 45% and from 54% to 84% respectively.

Findings from other 20mph implementations in the UK show that even small reductions in average speeds across a road network where people live and work can result in substantial reductions in collisions and serious injury, helping to make communities safer.

The report also concluded that in areas where 20mph was introduced there has been more children walking, cycling, and scooting to school.

Using data from Living Streets’ Wow walk to school challenge, it reported that schools in 20mph areas have seen a greater increase in active travel journeys (49% to 74%), compared to schools predominantly in 30mph areas (49% to 67%).

Deputy Minister for Climate Change, with a responsibility for transport, Lee Waters said:

“This latest data is already showing the benefits we can expect to see across Wales thanks to the bold move we are taking to lower the default speed limits later this year.

“Decisions like this can be unpopular and we know that change is never easy, however, evidence from around the world is clear – reducing speed limits save lives.

“We have made progress on reducing deaths and serious injuries on our roads over the 21 years of devolution, but we still need to do more to make the communities we work and live in safer.

“A reduction to 20mph on our residential and other busy pedestrian urban roads has to be the way forward.”