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Delhi Metro is being built and operated by the Delhi Metro Rail Corporation Limited (DMRC). As of November 2010, DMRC operates around 2,700 trips daily between 6:00 and 23:00 running with an interval of 2.5 minutes between trains at peak frequency. The trains have four coaches, but there are plans to shift to six coach trains to increase capacity. The power output is supplied by 25-kilovolt, 50 Hertz alternating current through overhead catenary. The metro has an average daily ridership of 1.5 million commuters, and, as of August 2010, had carried over 1.25 billion commuters since its inception. Planning for the metro started in 1984, when the Delhi Development Authority and the Urban Arts Commission came up with a proposal for developing a multi-modal transport system for the city. The Government of India and the Government of Delhi jointly set up the Delhi Metro Rail Corporation (DMRC) in 1995. Construction started in 1998, and the first section, on the Red Line, opened in 2002, followed by the Yellow Line in 2004, the Blue Line in 2005, its branch line in 2009, the Green and Violet Lines in 2010. Subsequently, these lines have been extended and new lines are under construction in Phase II of the project, including the Delhi Airport Metro Express whose opening has been postponed until January 2011 due to safety concerns. Despite all of the delays in opening, the Airport Express Line finally opened on February 23, 2011. |