Chile has a road network of 85,221 kilometres. It largely consists of interurban roads and some sections in urban areas of strategic interest. The network is administered by the Highways Office, apart from 3,000 kilometres which operate under private concessions. Management of the road assets (divided into 9 different categories) has become an essential task over the past decade, as mass use of the systems has increased, bolstering this strategic area of the Highways Office.