Bydd y cynllun yn gwella diogelwch drwy alluogi cerbydau nwyddau trwm uchel a cherbydau amaethyddol i deithio drwy'r ardal ac i ffwrdd o ardaloedd preswyl a bydd hefyd yn lleihau tagfeydd traffig ar ffyrdd cyfagos.
The scheme will improve safety by allowing large high sided heavy goods and agricultural vehicles to travel through the area away from residential areas as well as reducing traffic congestion on nearby roads.