The Delhi Metro is a mass rapid transit (MRT) system serving Delhi and its satellite cities of Ghaziabad, Faridabad, Gurugram, Noida and Bahadurgarh, in the National Capital Region of India. The network consists of 12 colour-coded lines serving 287 stations with a total length of 391 kilometres (243 mi). It is the largest and busiest metro rail system in India, and the second oldest after the Kolkata Metro. The system has a mix of underground, at-grade, and elevated stations using both broad-gauge and standard-gauge. Delhi Metro operates over 2,700 trips daily, starting at around 05:30 and ending at 23:30.
The New York City Subway is a rapid transit system in the New York City boroughs of Manhattan, Brooklyn, Queens, and the Bronx. It is owned by the government of New York City and leased to the New York City Transit Authority, an affiliate agency of the state-run Metropolitan Transportation Authority (MTA). Opened on October 27, 1904, the New York City Subway is one of the world's oldest public transit systems, one of the most-used, and the one with the most stations, with 472 stations in operation (424, if stations connected by transfers are counted as single stations).
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