Residents and traders in Port Talbot fear the closure of the junctions would lead to the town being 'cut off' from business.
Steve Redmore, manager of Aberafan Shopping Centre, said the closure would restrict people coming into the town, which is not needed in the current economic climate.
More top news
More than a thousand people gathered for the funeral of Wales international rugby league player Danny Jones in Halifax.
A chef from St Gwladwys Bargoed Primary School has won School Chef of the Year in a National competition
Tesco is fined £21,000 after pleading guilty to giving false information about the weight of peanut packs.