From the archive record
Heavy traffic due to Delhi Metro construction work in New Delhi. Delhi Metro is a metro system serving Delhi, Gurgaon, Noida, and Ghaziabad in the National Capital Region of India. Delhi Metro is the world's thirteenth largest metro system in terms of length. Delhi Metro is India's first modern public transportation system. As of April 2014, the network consists of six lines, plus a seventh Airport Express line, with a total length of 190.0 kilometres (118.1 mi), serving 137 stations, (including the 6 Airport Express stations), of which 36 are underground, five are at-grade, and the rest are elevated. All stations have escalators, elevators, and tactile tiles to guide the visually impaired from station entrances to trains. It has a combination of elevated, at-grade, and underground lines,