Residents of a narrow street say buses go up and down it 72 times a day and have asked councillors to re-route one of the services.
Councillors representing Burry Port, Carmarthenshire, said people living on Glanmor Terrace had requested the route of the X11 service to be changed due to buses causing gridlock and poor air quality.
From Sunday, August 28, the X11 Carmarthen to Swansea bus will miss out Glanmor Terrace, travelling along the road behind Woodbrook Terrace and then right along the B4311 instead. Operator First Cymru, which has published details of the re-routing on its website and is putting notices in bus stops, said the timetable will be unaffected.
