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
Vienna U-Bahn In common with many urban transit systems, the Vienna U-Bahn has art works in stations. These include: Vienna U-Bahn The Vienna U-Bahn (), where "U-Bahn" is an abbreviation of the German term "Untergrundbahn" (), is one of the two rapid transit (metro) systems for Vienna, Austria. The second system is the Vienna S-Bahn. With the October 2013 opening of the , three-station extension of the U2 line, the five-line U-Bahn network consists of of route, serving 98 stations. It is the backbone of one of the best performing public transport systems worldwide according to UITP (International Association of Public Transport)