A wnaiff y Gweinidog ddatgan sawl gwaith y cafodd lonydd ar yr A55 eu cau oherwydd damweiniau yn 2021-22?
Wedi'i ateb gan Y Dirprwy Weinidog Newid Hinsawdd | Wedi'i ateb ar 02/12/2022
In the year 2021-22 there were 99 events recorded where road traffic collisions caused emergency traffic management or temporary traffic management lane closure on the A55.