The document provides a comparative analysis of urban planning in ancient Greek and Roman settlements. It describes some key features of Roman urban planning exemplified by the town of Thamugadi, including its gridiron street layout with main north-south and east-west roads intersecting in the central town square which housed administrative and civic buildings. It also briefly outlines characteristics of urban planning in ancient Greek cities like Miletus, noting they sometimes had irregular organic street patterns in older cities but new cities often featured gridded layouts, and describes some redevelopment works in Miletus' city center and agora during the Roman period.