Bus Rapid Transit service, approximating the quality and efficiency of rail transit, will connect the Van Dorn and Pentagon Metro Stations.
The line will split into two spurs at the Mark Center, which is the new headquarters of a number of Department of Defense agencies following the Base Realignment and Closure (BRAC) decisions of 2005. The BRT spur will continue north on Beauregard Street, serving the Northern Virginia Community College at Braddock Road, turn east on S. Arlington Mill Drive to serve the Shirlington Transit Center, then continue on I-395 to the Pentagon. A separate rapid bus spur will travel on the I-395 HOV lanes from the Mark Center directly to the Pentagon.
The BRT alignment will operate in dedicated lanes where possible, and may include additional elements, such as pre-board payment, transit signal priority, improved bus shelters/stops and branded vehicles.