The speed limit along the N58 Foxford to Ballyvary road is to be reduced to 80km per hour, down from 100 km, and reduced further to 60 km per hour through the village of Straide.
It follows extensive lobbying by local Fine Gael councillor Neil Cruise, who says the people living along this very busy stretch of road, that links Ballina to Castlebar, are living in fear of traffic speeds along the route.
The councillor insists the changes are not designed as a revenue collector for the state, but rather arefor health and safety reasons.
Speed limit reductions are also to be reduced on the N26 Foxford to Swinford road, the main Dublin road from Ballina.
Councillor Cruise told Midwest News that these are all necessary changes and the new limits will be enforced.
They have been approved by both Transport Infrastructure Ireland and Mayo county council.