 The majority of Argentine roads, however, are two-lane national and provincial routes and, though they are spread throughout the country, less than a third of Argentina's 230,000 km (145,000 mi) of roads are currently paved.Though, by 1929, Argentina was already home to over 400,000 vehicles (more than half the total in Latin America, at the time), virtually all long-distance travel was done on the nation's vast railways.Argentina, then, lacked a road-building program until 1932, when the National Highway Directorate was established.