Capital Subdivision Capital Subdivision The Capital Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. state of Maryland and the District of Columbia. The line runs from near Baltimore, Maryland southwest to Washington, D.C. along the former Baltimore and Ohio Rail Road (B&O) Washington Branch. The subdivision's Alexandria Extension provides a connection to Virginia and points south. The northeast end of the line is at Halethorpe, Maryland, just north of the historic Thomas Viaduct, where it meets the Baltimore Terminal Subdivision and the Old Main Line Subdivision. Its southwest end is at the yard north of Union
Capital Plaza Mall hub---Landover Mall. Capital Plaza's prime location along Maryland Route 450 and the Baltimore-Washington Parkway made it ideal for shoppers by both automobile and public transit. Local bus service to Capital Plaza operated along Annapolis Road linking the plaza with shoppers from the nearby neighborhoods of College Park, Hyattsville, Riverdale, Rogers Heights, Edmonston, Bladensburg, Colmar Manor, Cottage City, Brentwood, Mount Rainier, Villa Heights, Cheverly, Landover Hills, Landover, New Carrollton, Lanham, Glenarden, and even certain pockets of Washington, DC (provided by the old WMA Transit Company, until later becoming the Metrobus system). In the late 1970s-1980s, Capital Plaza even featured a Trailways