List of highways in Chile
The national routes of Chile are formed by the set of roads that connect a regional or provincial capital with a longitudinal or variant road to it, which are named by the President of the Republic, according to the road legislation of Chile. The characteristics that are considered to be catalogued as such are: They connect cities with more than 30,000 inhabitants and that are the head of the region.
Source: Wikipedia — List of highways in Chile (CC BY-SA 4.0)