Metrorail and Metrobus are the safest, cleanest and most efficient ways to get around Washington. Five rail lines and an extensive bus service connect Washington, D.C. with Maryland and Virginia suburbs. Trail lines are named for colors: Red, Yellow, Blue, Green and Orange. Metrorail route maps are posted in each station and inside each subway car. Farecards may be purchased from vending machines in all Metrorail stations.