The Orange Line (labeled as the Purple Line on maps prior to 2006) is a light rail line operated by the Dallas Area Rapid Transit system in Dallas, Irving, Richardson and Plano, Texas. It runs from DFW Airport via downtown Dallas to Plano. Route The line's current northwestern terminus is DFW Airport Station, located inside Dallas/Fort Worth International Airport. The line proceeds southeast through Irving, providing service to the Irving Convention Center, Las Colinas, and the University of Dallas, before merging with the Green Line north of Bachman Station and proceeding southwest to Downtown Dallas. The Orange Line shares the rest of its route with existing light rail lines, with stops along the Green Line from Bachman to Victory Station, through downtown Dallas on a corridor shared with the Green Line, Blue Line, and Red Line, and then northward along the Red Line corridor through Richardson to Plano. Planned future Orange Line stations include a DFW North Station loop and an eastern extension down Scyene Road to Masters Drive (previously planned as a Green Line expansion). History Planning and construction The Orange Line was planned as an extension to the DART Light Rail system at least as early as 2006, when DART's 2030 System Plan described a "Northwest Corridor" route with expected revenue service to both Love Field and DFW Airport by 2013. On March 12, 2007, the City of Dallas officials and DART made an agreement to make Love Field Station a surface-level facility, concluding a long debate over whether or not to make it an underground station closer to the airport. On December 5, 2007, the Dallas Morning News ran a story reporting that DART President Gary Thomas said a previous cost estimate of $988 million was too low. The new cost estimate for the 14-mile project was $1.8 – $1.9 billion, he said. The $900 million overrun in costs caused considerable outrage among political leaders in Irving, Texas, the city the line runs through on its way to Dallas/Fort Worth International Airport. The Irving leaders conducted an inquiry into the cost overruns. Texas State Representative Linda Harper Brown sent an official letter to Mr. Thomas also inquiring about the project's cost overruns. In February 2010 DART officials warned that the first two phases of the Orange Line might be delayed due to TXDOT problems along State Highway 114, which the Orange Line route follows. Utility relocation and