The Welsh Government consultation was an opportunity for those with an interest in the subject of 20mph speed limits to express their views, but it was not a research survey.
Roedd ymgynghoriad Llywodraeth Cymru’n gyfle i rai oedd â diddordeb yn y pwnc o derfynau cyflymder 20mya fynegi eu barn ond nid oedd yn arolwg ymchwil.