Ancient water supply usage; ancient technology; the economy of the Roman Empire; Roman architecture; field survey.
Current and Recent Activities
Co-director with Professor Alan Bowman of The Oxford Roman Economy Project, which aims to collate and analyse a series of quantifiable indicators, from papyrological, epigraphic and archaeological sources, on the growth and contraction of the Roman economy between 100 B.C. and A.D. 300. Excavations near the SE corner of the Roman Forum and in the Horrea Agrippiana, Rome; excavations of the Aqua Traiana and Roman water-mills on the Janiculum Hill, Rome; excavations of the Archaic-early Hellenistic city of Euesperides (Benghazi, Libya); study of the foggara (underground irrigation) systems in the Fezzan (Libyan Sahara).