Falerii Novi had a network of water pipes running beneath the city blocks and not just along streets, indicating coordinated city planning.
The study also challenges certain assumptions about Roman urban design, showing Falerii Novi’s layout was less standardised than many other well-studied towns, like Pompeii.
Professor Millett added: “The astonishing level of detail which we have achieved at Falerii Novi, and the surprising features that GPR has revealed, suggest that this type of survey could transform the way archaeologists investigate urban sites, as total entities.”
The archaeological team have already used GPR to survey Interamna Lirenas in Italy, and on a lesser scale, Alborough in North Yorkshire.
However, they now hope to see the radar deployed on far bigger sites.