Matt Hemsley, from sustainable transport charity Sustrans ,says the the Assembly should make the introduction of more speed restrictions part of future policy.
"Slower speeds limits really encourage people to get out and walk and cycle, which is really good for their health" he says.
"Fast-moving traffic in communities really puts people off".
More top news
Hayley Ladd fired home a late free-kick as Wales beat Kazakhstan 1-0 to stay top of their World Cup qualifying group.
A cold and frosty night with ice patches, frost and snow falling over the hills! it's going to be a wintry start to the weekend!
Campaigners are calling on the Welsh Government to launch a public information campaign.