Sections could be supported over marshy ground on rafted or piled foundations.Thus, the Via Gabina (during the time of Porsena) is mentioned in about 500 BC; the Via Latina (during the time of Coriolanus) in about 490 BC; the Via Nomentana (also known as "Via Ficulensis"), in 449 BC; the Via Labicana in 421 BC; and the Via Salaria in 361 BC.These major roads were often stone-paved and metaled, cambered for drainage, and were flanked by footpaths, bridleways and drainage ditches.They were laid along accurately surveyed courses, and some were cut through hills, or conducted over rivers and ravines on bridgework.Such roads ran either into a high road, or into other viae vicinales, without any direct communication with a high road.They were considered public or private, according to the fact of their original construction out of public or private funds or materials.Such roads led either to the sea, or to a town, or to a public river (one with a constant flow), or to another public road.
Dio Cassius mentions as one of the forcible acts of the triumvirs of 43 BC (Octavianus, Antony, and Lepidus), that they obliged the senators to repair the public roads at their own expense.
Roman roads varied from simple corduroy roads to paved roads using deep roadbeds of tamped rubble as an underlying layer to ensure that they kept dry, as the water would flow out from between the stones and fragments of rubble, instead of becoming mud in clay soils.
According to Ulpian, there were three types of roads: The first type of road included public high or main roads, constructed and maintained at the public expense, and with their soil vested in the state.
The default width was the latitudo legitima of 8 feet.
Roman law and tradition forbade the use of vehicles in urban areas, except in certain cases.