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The Santiago Metro (Spanish: Metro de Santiago) is a rapid transit system serving the city of Santiago, the capital of Chile. Serving mainly the Santiago province and part of the Cordillera province, it currently consists of seven lines (numbered 1-6 and 4A), 136 stations, and 140 kilometres (87.0 mi) of revenue route.[1] The system is managed by the state-owned Metro S.A. and is the first and only rapid transit system in the country.

The Santiago Metro carries around 2.5 million passengers daily. This figure represents an increase of more than a million passengers per day compared to 2007, when the ambitious Transantiago project was launched, in which the metro plays an important role in the public transport system serving the city. Its highest passenger peak was reached on 31 October 2012, reaching 2,780,666 passengers.[citation needed]

In June 2017 the government announced plans for the construction of Line 7, connecting Renca in the northwest of Santiago with Vitacura in the northeast. The new line will add 24.8 kilometers and 21 new stations to the Metro network, running along the municipalities of Renca, Cerro Navia, Quinta Normal, Santiago, Providencia, Las Condes and Vitacura. Its cost has been initially estimated at US$2.53 bn and it is projected to open in 2025.[5]

In March 2012, the Santiago Metro was chosen as the best underground system in the Americas, after being honoured at the annual reception held by Metro Rail in London.[6]

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