The Welsh Assembly last week passed a motion to encourage local authorities in Wales to implement more 20mph limits.
In a debate in the Senedd chamber, a group of Welsh Assembly members called for more 20mph zones to be introduced to protect pedestrians and children in built-up areas.
While 20mph zones are a familiar sight outside many Welsh schools, the four Assembly members argued they should be introduced in other built-up areas and places where children play.
Welsh councils have been given £11.5m this year to encourage them to introduce more zones, with ministers saying that slower traffic would make roads safer and encourage people to walk and cycle.
The Welsh Assembly’s move comes just two weeks after the UK Government published new speed limit guidance for local authorities in England, which includes changes that create more flexibility for authorities to implement 20mph limits and zones.
Labour assembly member Joyce Watson, one of the four Assembly members tabling the debate, said 20mph zones could be imposed around school gates at peak times when children were likely to be around.
Brake, the road safety charity, has welcomed the move.
Julie Townsend, deputy chief executive of Brake, said: “We are delighted the Welsh Assembly has thrown its weight behind life-saving and life-enabling 20mph limits, recognising the evidence that going 20 is good for road safety and good for communities.
“We urge local authorities in Wales and across the UK to heed this call and make this important step towards safer neighbourhoods and safer walking and cycling.”