Road network in Tamil Nadu June 2018, Tamil Nadu's road network has a total road length of . Tamil Nadu has about of highways which is designated as "National Highways" and "State Highways" on the basis of traffic intensity and connectivity. The various types of roads and their lengths are given below: Road stretches which have heavy traffic intensity of more than 30,000 Passenger Car Units (PCUs) connecting different state capitals, major ports, large industrial areas and tourist centers are designated National Highway by Government of India. In Tamil Nadu, "National Highways Wing" of Highways & Minor Ports Department was established in the year 1971
Road Network of the MERCOSUR Río Cuarto and finalizing in Mendoza. In Mendoza, the road crosses the Andes through the Cristo Redentor tunnel, reaching the cities of Santiago de Chile and Valparaíso in Chile. It is planned to construct a new tunnel through the Andes, starting in the zone of Horcones, as this area has a lower altitude than the one serving the Cristo Redentor tunnel, the way will be able to be operative all the year around. Road Network of the MERCOSUR The road network of the MERCOSUR (), is a network of roads and highways in South America, that constitute a transnational system