The road infrastructure of a country is generally described in terms of total miles of road, and of the percentage of these roads that are paved. For example, the country of Argentina is listed as having 215,000 kilometres of roads, of which 63,500 kilometres (29.5%) are paved.
Unfortunately, there is no statistical source and difficult to evaluate. Congestion of the road infrastructure is also endemic to certain cities: There are too many cars, trucks, and other vehicles on the road, and deliveries are difficult to make. Many delivery firms are now using motorcycles and mopeds, which are more manoeuvrable in large cities.
If the country is mountainous, numerous bridges and tunnels will be designed and built to "eliminate" the constraints of the landscape.
The dependence of international trade on the structures cannot be underestimated: Most natural borders are either water (oceans or lakes) or mountains at the watershed separation. To cross these natural borders, bridges or tunnels have to be built. However, these structures may still be vulnerable to natural disasters.