“Mae arafu traffig hefyd yn creu amgylchedd mwy diogel a chroesawgar, gan roi'r hyder i bobl gerdded a beicio fwy. Bydd hynny’n helpu i wella ein hiechyd a'n lles, ac yn helpu i wella’r amgylchedd.
“Slower speeds also create a safer and more welcoming environment, giving people the confidence to walk and cycle more, which will help to improve our health and wellbeing and help to improve the environment.