Due to several aerial photography campaigns and surveys on the farmland conducted by the Potenza Valley Survey Project (Ghent University) more information has been available about the general layout and organization of the town. Recently in July and October 2013, also geophysical surveys were undertaken by the geophysical survey company Eastern Atlas with the objective of locating and mapping more remains of subsurface archaeological features in Trea. Also the recent study of the Roman pottery to deliver chronological clues and help to determine functional zones as well as the study of stone architectural decoration to gain more insights in the embellishment of the town, has led to more information.