 Commuter rail service to the station is provided by MARC Train's Camden Line, which connects the District of Columbia's Washington Union Station with Camden Station in Baltimore.The Camden Line provides service by utilizing the original 1835 Baltimore and Ohio Railroad (B&O) track route between Washington and Baltimore, now part of the CSX System.Also available at the station, is a weekday express Metrobus service, the Greenbelt–BWI Thurgood Marshall Airport Express Line (commonly shortened to the Greenbelt–BWI Airport Line), designated route B30, to Baltimore/Washington International Thurgood Marshall Airport (BWI), a mode of transportation to and from the airport for airline passengers, in addition to allowing for connections to Baltimore's regional transit services.