"Mae gan blant lai o ymwybyddiaeth o'r ffyrdd nag oedolion a gallant fod yn anodd eu gweld. Maent hefyd yn tueddu i gael eu taro'n uwch ar y corff nag oedolion oherwydd eu taldra, ac yn fwy tebygol o ddioddef anafiadau difrifol o ganlyniad. Felly, bydd y terfyn o 20mya yn helpu i leihau nifer y gwrthdrawiadau a difrifoldeb anafiadau."
“Children have less road awareness than adults and can be difficult to see. They also tend to be struck higher on the body than adults due to their smaller height, and more likely to suffer severe injuries as a result. So, the 20mph limit will help reduce the number of collisions and severity of injuries.”