The Anacostia–Eckington Line, designated Route P6, is a daily bus route operated by the Washington Metropolitan Area Transit Authority between Rhode Island Avenue–Brentwood station of the Red Line of the Washington Metro and Anacostia station of the Green Line of the Washington Metro With late night and early morning trips shortened to operate between Anacostia station of the Green Line of the Washington Metro and L'Enfant Plaza station of the Blue, Orange, Silver, Green and Yellow Lines of the Washington Metro. The line operates every 15–20 minutes during the weekday peak hours, 24 minutes during the weekday midday, and 30–35 minutes during the late nights and weekends. Route P6 trips are roughly 65 minutes long.

Rhode Island Avenue station is a Washington Metro station in Washington, D.C., on the Red Line. The station is located in the Brentwood neighborhood of Northeast, on an elevated platform crossing Rhode Island Avenue NE