While the Silver Line's eastern terminus was originally planned to be at , in 2012, the plan was changed for the line to originate at instead because Stadium-Armory's pocket track is too short for trains to turn around. Traveling westward through the District of Columbia, the Silver Line follows the Blue and Orange Line tracks. It continues through Arlington along the Orange Line and branches off immediately east of the Orange Line's station. The new tracks run in the median of the Dulles Connector Road (SR 267) to an elevated bridge, which takes them over SR 123. Two elevated stops along the west side of Route 123 serve the national headquarters of Capital One, SAIC and two enclosed Tysons Corner shopping malls. The tracks then enter a tunnel which emerges in the median of SR 7. Two elevated stations above SR 7 serve the western section of Tysons. The elevated track then swings back into the median of the Dulles Access Road and terminates at Wiehle-Reston East.