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
A new service launches in Wales today to get more people involved in dementia research, even if they don't have the condition.
As Welsh-born former Australian PM Julia Gillard speaks at the Senedd on women's rights, we take a look at some important female figures.
Barry-born Julia Gillard is delivering a lecture at the Senedd today, where she will discuss barriers women face in the public sphere.