M Street SE, from the waterfront to the Navy Yard, is included in the "high priority corridors" in the DC Metro system's 10-year expansion plan for
light rail or bus rapid transit. Two corridors--from the Anacostia Corridor to the Waterfront Metro station, and from the Silver Spring Metro station to Anacostia--would run along M Street. A three-mile demonstration version will be built in Anacostia in 2004.