It is recognised that a speed limit of 20mph may not be appropriate for all restricted roads in Wales, however, and an ‘exceptions process’ has therefore been developed.
Argymhelliad ar y safonau priodol i'w mabwysiadu er mwyn osgoi gor-ragnodi, a ph'un a ddylid defnyddio'r Llawlyfr Dylunio ar gyfer Ffyrdd a Phontydd ym mhob achos.