The Metro is a major part of the "National Master Plan" to improve transportation in Greater Santo Domingo and the rest of the nation. The first line was planned to relieve traffic congestion on the Máximo Gómez and Hermanas Mirabal Avenuethoroughfares, which connect Santo Domingo. The second line, which opened in April 2013, is meant to relieve the congestion along the Duarte-Kennedy-Centenario Corridor in the city from west to east. The current length of the Metro, with the sections of the two lines open as of August 2013, is 27.35 kilometres (16.99 mi).[2][3] Before the second line's opening, 30,856,515 passengers had ridden the Santo Domingo Metro in 2012.[1] With both lines opened, ridership increased to 61,270,054 passengers in 2014.[5]
Four more lines are planned to be constructed in the near future, for a total of six lines.
^ abcCite error: The named reference SD-Line1 was invoked but never defined (see the help page).
^ abcCite error: The named reference SD-Line2 was invoked but never defined (see the help page).
^"Informe de Evolución de la Demanda Diciembre 2014" [Report on Changes in Demand December 2014] (PDF) (in Spanish). Dirección de Operaciones Metro de Santo Domingo [Directorate of Operations Santo Domingo Metro]. January 7, 2015. p. 11. Retrieved 2015-04-01.
^ ab"Informe de Evolución de la Demanda Diciembre 2014" [Report on Changes in Demand December 2014] (PDF) (in Spanish). Dirección de Operaciones Metro de Santo Domingo [Directorate of Operations Santo Domingo Metro]. January 7, 2015. p. 7. Retrieved 2015-04-01.