 The MTA's final environmental impact statement was approved in April 2004; this latest proposal is for a two-track line from 125th Street and Lexington Avenue in Harlem, down Second Avenue to Hanover Square in the Financial District. The new subway line will actually carry two services. The full-length Second Avenue line, extending from Harlem to the Financial District, is to be given the color turquoise and the letter designation T. However, a rerouted Q, the line's other service, will begin carrying passengers first. The MTA plan calls for building the Second Avenue Subway in four segments with connections to other subway lines. The first segment (Phase One) is a proposed reroute of the Q, the Broadway Express via the BMT 63rd Street Line and north along Second Avenue to the Upper East Side at 96th Street. Phase Two will extend the rerouted Q train to 125th Street. In Phase Three, the new T train will run from 125th Street to Houston Street. The final phase will extend T train service from Houston Street to Hanover Square in Lower Manhattan. Track maps on the MTA's website show that all stations, except for 125th Street, will have two tracks and one island platform. (72nd Street was conceived as a three-track, two-platform station, as is 125th Street. However, the 72nd Street station is being constructed with two tracks and one platform.)
