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
Water crisis in the Democratic Republic of the Congo DRC are dominated by the Congo River and its tributaries. With a mean flow of around 41,000 m³/s, the Congo River has the second largest discharge volume in the world. The Congo River basin accounts for 98 percent of the country's surface area and provides the country with one of the most extensive river networks in the world. The quality of surface waters is generally very good, with the exception of localized pollution hotspots in urban centres and near mining operations. The high water quality is mostly a result of the high dilution capacity of the river network, the low