Note: in the consultation the question was only asked of those against a reduction of the speed limit to 20mph, so has been re-based to the total sample in this chart for comparative purposes.
Sylwer: yn yr ymgynghoriad, dim ond i’r rhai oedd yn erbyn gostwng y terfyn cyflymder i 20mya y gofynnwyd y cwestiwn, felly mae wedi’i ail-seilio ar y sampl gyfan yn y siart hwn at ddibenion cymharu