The GWR had long been considering moving Carmarthen Town station to the south side of the River Towy, to a site where plenty of available land existed. It now began to put the work in hand. By reopening the old Pembroke and Tenby Loop, a triangle of tracks was formed and through passenger trains from Swansea could run into Carmarthen station and reverse there, continuing their journey west over the loop; the former arrangement of using Carmarthen Junction was discontinued. The new arrangements were inaugurated on 1 July 1902.