CityLink Red (abbreviated "RD") is a citylink bus route operated by the Maryland Transit Administration in Baltimore and its suburbs. The line currently runs from the University of Maryland Transit Center to the Lutherville Light Rail Stop along the corridors of York Road and Greenmount Avenue, and is one of the most heavily used MTA bus lines. The CityLink Red bus replaced Route 8 bus route due to BaltimoreLink, and is the successor to the 8 Towson and 7 Govanstown streetcar lines.