SENEDD members will vote on Welsh Government plans to introduce 20mph as a standard speed limit across Wales on Tuesday (Jul 12).
The plans intend to shift to a default speed limit of 20mph from the current 30mph in most residential roads and other busy streets.
If it passes, the new law is expected to come into force from September 17, 2023.
The policy aims to reduce the number of road traffic collisions, improve air quality and noise pollution, and encourage the shift away from car use.
Research and pilot trials in eight areas across Wales have been regarded as a success by Welsh ministers.
The government estimates that after an initial £33 million is spent on the change, it will be offset by a saving of £58m in reduced use of emergency services and hospital admissions over 30 years.
Supporters of the move say that pedestrians are 40% less likely to die when hit by a car travelling at 20mph compared with one travelling at 30mph.
Dr Sarah Jones, consultant in environmental public health at Public Health Wales, said: “Travelling at 20 mph has been shown to reduce the risk of crashing and the severity of crashes that do still happen.
“It also produces less noise pollution and reduces fuel consumption. It encourages people to walk and cycle, helping to fight obesity and improve mental well-being.
“All of these are likely to contribute to improvements in health and reduction in the demands for health services, which will help the NHS recovery from Covid.”
However, not everybody is in favour of the change. The law is likely to be opposed by the Welsh Conservatives.
Sam Rowlands, MS for North Wales, has called on residents to voice their concerns about the plans.
Mr Rowlands said: “I met with local councillor Adie Drury and residents in Buckley, this morning who are extremely frustrated at the pilot scheme which has led to roads through the town having a 20mph speed limit instead of 30mph.
“They are quite rightly very concerned as they believe that pollution is increasing because cars have to drive in a lower gear and wait longer at traffic lights, there have also been more accidents and the cost of the scheme is thought to be in the region of £33 million across Wales which would be better spent on more teachers, doctors and nurses.
“The trial has certainly caused a lot of problems for people living in Buckley and I am angry on their behalf as there does appear to be a lack of public awareness around these changes.
“I do support letting councils put 20mph speed limits outside schools, hospitals and other areas where evidence shows it’s a benefit, but a blanket 20mph speed limit across urban roads in Wales is just not right.”
Stephen Edwards, chief executive of Living Streets, who advocate a walking based approach to travel, said: “This would be life-changing legislation because slower speeds will improve the places where we live, work and go to school.
“It’s simple: slower speeds save lives – and I urge Members of the Senedd to support the 20mph in the vote on 12 July and help make our streets and pavements safe and accessible for everyone in our communities.”
Christine Boston, director of sustainably travel organisation Sustrans Cymru, said: “Sustrans Cymru joins Living Streets and Cycling UK in calling for Members of the Senedd to support the proposals, because 20mph defaults will help make communities across Wales safer and more attractive places to walk, wheel and cycle.
“We believe that everyone in Wales should have access to safe streets. Making 20mph default limits in our communities will help to reduce the dominance of motor vehicles whilst creating opportunities for social interaction, creating happier and healthier places.
“We want communities that are built for safety rather than speed.”
Commenting, Welsh Shadow Minister for Transport, Natasha Ashgar MS, said:

“The Welsh Conservatives are not against introducing 20mph speed limits outside schools, playgrounds, places of worship and high streets, but a blanket roll-out is quite frankly ludicrous.

“With a price tag of more than £32 million, is this really money well spent at a time when the Labour Government should be focused on tackling the big issues at hand such as the cost-of-living? I don’t think it is, and I am sure residents across the country will be thinking the exact same.

“This is yet another diktat imposed by Labour from Cardiff Bay.

“Speed limits like this should be decided by councils in their local areas, not top-down by Labour ministers. Let’s give local people the power over their communities, the very people who know their roads best.”