Roman roads ( ; singular: ; meaning "Roman way") were physical infrastructure vital to the maintenance and development of the Roman state, and were built from about 300 BC through the expansion and consolidation of the Roman Republic and the Roman Empire. They provided efficient means for the overland movement of armies, officials, civilians, inland carriage of official communications, and trade goods. Roman roads were of several kinds, ranging from small local roads to broad, long-distance highways built to connect cities, major towns and military bases. 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. Sections could be supported over marshy ground on rafted or piled foundations. At the peak of Rome's development, no fewer than 29 great military highways radiated from the capital, and the late Empire's 113 provinces were interconnected by 372 great roads. The whole comprised more than of roads, of which over were stone-paved. In Gaul alone, no less than of roadways are said to have been improved, and in Britain at least . The courses (and sometimes the surfaces) of many Roman roads survived for millennia; some are overlaid by modern roads. Roman systems Livy mentions some of the most familiar roads near Rome, and the milestones on them, at times long before the first paved road—the Appian Way. Unless these allusions are just simple anachronisms, the roads referred to were probably at the time little more than levelled earthen tracks. Thus, the Via Gabina (during the time of Porsena) is mentioned in about 500 BC; the Via Latina (during the time of Gaius Marcius 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. In the Itinerary of Antoninus, the description of the road system is as follows: With the exception of some outlying portions, such as Britain north of the Wall, Dacia, and certain provinces east of the Euphrates, the whole Empire was penetrated by these itinera (plural of iter). There is hardly a district to which we might expect a Roman official to be sent, on service either civil or military, where we do not find roads. They reach the Wall